https://wiki.london.hackspace.org.uk/w/api.php?action=feedcontributions&user=Mars&feedformat=atomLondon Hackspace Wiki - User contributions [en-gb]2024-03-29T08:26:11ZUser contributionsMediaWiki 1.35.5https://wiki.london.hackspace.org.uk/w/index.php?title=Assistive_Music_Technology&diff=28855Assistive Music Technology2013-03-28T15:25:57Z<p>Mars: /* Hackday Brief */</p>
<hr />
<div>== Assistive Music Technology Hackday at Furtherfield, Sunday April 21st ==<br />
<br />
On Sunday 21st April [http://drakemusicresearch.wordpress.com/ Drake Music] will run a hackday to create and share new instruments that break down disabling barriers to music making. Run in partnership with Furtherfield and Music Hackspace, makers will have the opportunity to work towards one of two prizes for the most innovative work. To register for the hack day or to ask any questions please email me gawainhewitt at drakemusic.org or twitter @DrakeMusicRandD<br />
<br />
== Hackday Brief ==<br />
<br />
To create new switch devices.<br />
<br />
To register as a participant please email gawainhewitt at drakemusic.org<br />
<br />
Drake Music often uses switches to trigger sounds. These generally interface using a 1/8” or ¼” jack and can be plugged in to [http://www.soundbeam.co.uk/ Soundbeam] or a [http://www.inclusive.co.uk/crick-usb-switch-box-p2546 Crick Box] to name a few. We also use iPad apps and sometimes [http://www.makeymakey.com/ Makey Makey].<br />
<br />
This will be a 5 hour hack event where you are invited to bring your hacking and making expertise and come and collaborate in the creation of new devices and interfaces that use touch or switches to trigger sounds. Haptic feedback is something that would be interesting, as would wireless devices and devices that allow for some amount of musical expression.<br />
<br />
Devices will be judged on innovation, musicality and affordability, with a £100 prize for the winning entry. Pizza and fizzy drinks will be supplied.<br />
<br />
Some ideas that have occurred to our staff and musicians have been as follows:<br />
<br />
* I think being able to cycle through a range of sounds or samples is very useful.<br />
* Also, it’s great to have zero latency between press and hearing sound.<br />
* Wireless/switches/velocity sensitive<br />
* Quick response when triggering switch repeatedly<br />
* Can use at least 8 switches<br />
* Cross platform, compatible with software we use.<br />
* Have choice to use as key commands (like crick) or midi (all in one)<br />
* Small/compact<br />
* Affordability off the shelf<br />
* That it has the capacity to interpret expression rather than just on/off messages<br />
<br />
This brief is open for people interested in both software and electronics. We will supply a couple of arduinos, a makey makey an iPac and a selection of accessible switches for use on the day.<br />
<br />
== Open Hack Brief ==<br />
<br />
To create new movement to sound devices<br />
<br />
If you are not able to attend the event on the day (or if you are and fancy an extra challenge!) – then we have a second brief which you can work on in your own time. Entries that are complete before the hackday can be presented at the event at 3pm.<br />
<br />
Drake Music has made extensive use of movement to sound devices in its work, particularly the Soundbeam. This brief is simply to create new devices that convert movement to sound and/or midi/information that other daw’s, modules and software’s can use.<br />
<br />
This is an open creative brief. However you may want to think about what makes your creation better and/or new.<br />
<br />
Some ideas that have occurred to our staff and musicians have been as follows:<br />
<br />
* I think the gesture used has to have an intuitive result from the sound; e.g. you can hit a snare drum in a multitude of ways and produce a variety of sounds and dynamics.<br />
* Affordability/off the shelf<br />
* Easy to programme/minimal setting up<br />
* Small/compact<br />
* Easy to position/mount<br />
* 3D<br />
* That it sounds good<br />
* That it can be played expressively (dynamics etc.)<br />
* That the sound genuinely expresses the nature of the movement – a ‘symbiotic’ relationship<br />
* That it’s not assumed the movement will be made using the hands<br />
* That it’s possible to make no sound without having to withdraw from the motion-sensing field – a bit like stopping the bow on a cello string without lifting it up.<br />
* Ideally that it has an option to be polyphonic – played with multiple movements simultaneously<br />
* This brief is open to start work on immediately and you are invited to make and build in your own time using the facilities already available to you. We will meet at Furtherfield on Sunday 21st April at 3pm to review the entries and discuss them, document them etc…<br />
<br />
http://drakemusicresearch.wordpress.com/<br />
<br />
== The OHMI-Ars Electronica Prize ==<br />
<br />
[http://www.ohmi.org.uk/ OHMI] have launched a prize in partnership with [http://www.aec.at/ Ars Electronica] for the development of a musical instrument that can be played with one hand. <br />
<br />
Entrants to the One-Handed Musical Instrument Competition are challenged to develop a musical instrument that can be played (i) without the use of one hand and arm and (ii) that is capable of emulating a traditional orchestral instrument.<br />
<br />
The challenge should not be underestimated. It is a very tall order to replicate the subtlety and complexity of an orchestral wind or string instrument. Of necessity, there will be a combination of delicate and subtle physical actions perhaps involving electronic, programmable hardware and complex software. We are planning that the winning instrument(s) may give public performances in Linz with the Bruckner Orchestra and in Britain with a UK orchestra (discussions are in progress). We hope that the UK performance may be broadcast nationally. <br />
<br />
To submit an entry to the competition, go to ohmi.aec.at and complete the initial registration form. Thereafter, your entry can be edited and altered until you choose to click "finalize". The next winners will be announced at the 2013 Ars Electronica Festival, for which the submission cut-off date is June 30th 2013. However, on the entry form you can elect any year for your entry and in either the "Concept" or the "Playable" categories (see below).</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Assistive_Music_Technology&diff=28854Assistive Music Technology2013-03-28T15:25:22Z<p>Mars: /* Hackday Brief */</p>
<hr />
<div>== Assistive Music Technology Hackday at Furtherfield, Sunday April 21st ==<br />
<br />
On Sunday 21st April [http://drakemusicresearch.wordpress.com/ Drake Music] will run a hackday to create and share new instruments that break down disabling barriers to music making. Run in partnership with Furtherfield and Music Hackspace, makers will have the opportunity to work towards one of two prizes for the most innovative work. To register for the hack day or to ask any questions please email me gawainhewitt at drakemusic.org or twitter @DrakeMusicRandD<br />
<br />
== Hackday Brief ==<br />
<br />
To create new switch devices.<br />
<br />
To register as a participant please email gawainhewitt at drakemusic.org<br />
<br />
Drake Music often uses switches to trigger sounds. These generally interface using a 1/8” or ¼” jack and can be plugged in to [http://www.soundbeam.co.uk/ Soundbeam] or a [http://www.inclusive.co.uk/crick-usb-switch-box-p2546 Crick Box] to name a few. We also use iPad apps and sometimes Makey Makey.<br />
<br />
This will be a 5 hour hack event where you are invited to bring your hacking and making expertise and come and collaborate in the creation of new devices and interfaces that use touch or switches to trigger sounds. Haptic feedback is something that would be interesting, as would wireless devices and devices that allow for some amount of musical expression.<br />
<br />
Devices will be judged on innovation, musicality and affordability, with a £100 prize for the winning entry. Pizza and fizzy drinks will be supplied.<br />
<br />
Some ideas that have occurred to our staff and musicians have been as follows:<br />
<br />
* I think being able to cycle through a range of sounds or samples is very useful.<br />
* Also, it’s great to have zero latency between press and hearing sound.<br />
* Wireless/switches/velocity sensitive<br />
* Quick response when triggering switch repeatedly<br />
* Can use at least 8 switches<br />
* Cross platform, compatible with software we use.<br />
* Have choice to use as key commands (like crick) or midi (all in one)<br />
* Small/compact<br />
* Affordability off the shelf<br />
* That it has the capacity to interpret expression rather than just on/off messages<br />
<br />
This brief is open for people interested in both software and electronics. We will supply a couple of arduinos, a makey makey an iPac and a selection of accessible switches for use on the day.<br />
<br />
== Open Hack Brief ==<br />
<br />
To create new movement to sound devices<br />
<br />
If you are not able to attend the event on the day (or if you are and fancy an extra challenge!) – then we have a second brief which you can work on in your own time. Entries that are complete before the hackday can be presented at the event at 3pm.<br />
<br />
Drake Music has made extensive use of movement to sound devices in its work, particularly the Soundbeam. This brief is simply to create new devices that convert movement to sound and/or midi/information that other daw’s, modules and software’s can use.<br />
<br />
This is an open creative brief. However you may want to think about what makes your creation better and/or new.<br />
<br />
Some ideas that have occurred to our staff and musicians have been as follows:<br />
<br />
* I think the gesture used has to have an intuitive result from the sound; e.g. you can hit a snare drum in a multitude of ways and produce a variety of sounds and dynamics.<br />
* Affordability/off the shelf<br />
* Easy to programme/minimal setting up<br />
* Small/compact<br />
* Easy to position/mount<br />
* 3D<br />
* That it sounds good<br />
* That it can be played expressively (dynamics etc.)<br />
* That the sound genuinely expresses the nature of the movement – a ‘symbiotic’ relationship<br />
* That it’s not assumed the movement will be made using the hands<br />
* That it’s possible to make no sound without having to withdraw from the motion-sensing field – a bit like stopping the bow on a cello string without lifting it up.<br />
* Ideally that it has an option to be polyphonic – played with multiple movements simultaneously<br />
* This brief is open to start work on immediately and you are invited to make and build in your own time using the facilities already available to you. We will meet at Furtherfield on Sunday 21st April at 3pm to review the entries and discuss them, document them etc…<br />
<br />
http://drakemusicresearch.wordpress.com/<br />
<br />
== The OHMI-Ars Electronica Prize ==<br />
<br />
[http://www.ohmi.org.uk/ OHMI] have launched a prize in partnership with [http://www.aec.at/ Ars Electronica] for the development of a musical instrument that can be played with one hand. <br />
<br />
Entrants to the One-Handed Musical Instrument Competition are challenged to develop a musical instrument that can be played (i) without the use of one hand and arm and (ii) that is capable of emulating a traditional orchestral instrument.<br />
<br />
The challenge should not be underestimated. It is a very tall order to replicate the subtlety and complexity of an orchestral wind or string instrument. Of necessity, there will be a combination of delicate and subtle physical actions perhaps involving electronic, programmable hardware and complex software. We are planning that the winning instrument(s) may give public performances in Linz with the Bruckner Orchestra and in Britain with a UK orchestra (discussions are in progress). We hope that the UK performance may be broadcast nationally. <br />
<br />
To submit an entry to the competition, go to ohmi.aec.at and complete the initial registration form. Thereafter, your entry can be edited and altered until you choose to click "finalize". The next winners will be announced at the 2013 Ars Electronica Festival, for which the submission cut-off date is June 30th 2013. However, on the entry form you can elect any year for your entry and in either the "Concept" or the "Playable" categories (see below).</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Assistive_Music_Technology&diff=28852Assistive Music Technology2013-03-28T15:04:54Z<p>Mars: /* Assistive Music Technology Hackday at Furtherfield, Sunday April 21st */</p>
<hr />
<div>== Assistive Music Technology Hackday at Furtherfield, Sunday April 21st ==<br />
<br />
On Sunday 21st April [http://drakemusicresearch.wordpress.com/ Drake Music] will run a hackday to create and share new instruments that break down disabling barriers to music making. Run in partnership with Furtherfield and Music Hackspace, makers will have the opportunity to work towards one of two prizes for the most innovative work. To register for the hack day or to ask any questions please email me gawainhewitt at drakemusic.org or twitter @DrakeMusicRandD<br />
<br />
== Hackday Brief ==<br />
<br />
To create new switch devices.<br />
<br />
To register as a participant please email gawainhewitt at drakemusic.org<br />
<br />
Drake Music often uses switches to trigger sounds. These generally interface using a 1/8” or ¼” jack and can be plugged in to Soundbeam or a Crick Box to name a few. We also use iPad apps and sometimes Makey Makey.<br />
<br />
This will be a 5 hour hack event where you are invited to bring your hacking and making expertise and come and collaborate in the creation of new devices and interfaces that use touch or switches to trigger sounds. Haptic feedback is something that would be interesting, as would wireless devices and devices that allow for some amount of musical expression.<br />
<br />
Devices will be judged on innovation, musicality and affordability, with a £100 prize for the winning entry. Pizza and fizzy drinks will be supplied.<br />
<br />
Some ideas that have occurred to our staff and musicians have been as follows:<br />
<br />
* I think being able to cycle through a range of sounds or samples is very useful.<br />
* Also, it’s great to have zero latency between press and hearing sound.<br />
* Wireless/switches/velocity sensitive<br />
* Quick response when triggering switch repeatedly<br />
* Can use at least 8 switches<br />
* Cross platform, compatible with software we use.<br />
* Have choice to use as key commands (like crick) or midi (all in one)<br />
* Small/compact<br />
* Affordability off the shelf<br />
* That it has the capacity to interpret expression rather than just on/off messages<br />
<br />
This brief is open for people interested in both software and electronics. We will supply a couple of arduinos, a makey makey an iPac and a selection of accessible switches for use on the day.<br />
<br />
== Open Hack Brief ==<br />
<br />
To create new movement to sound devices<br />
<br />
If you are not able to attend the event on the day (or if you are and fancy an extra challenge!) – then we have a second brief which you can work on in your own time. Entries that are complete before the hackday can be presented at the event at 3pm.<br />
<br />
Drake Music has made extensive use of movement to sound devices in its work, particularly the Soundbeam. This brief is simply to create new devices that convert movement to sound and/or midi/information that other daw’s, modules and software’s can use.<br />
<br />
This is an open creative brief. However you may want to think about what makes your creation better and/or new.<br />
<br />
Some ideas that have occurred to our staff and musicians have been as follows:<br />
<br />
* I think the gesture used has to have an intuitive result from the sound; e.g. you can hit a snare drum in a multitude of ways and produce a variety of sounds and dynamics.<br />
* Affordability/off the shelf<br />
* Easy to programme/minimal setting up<br />
* Small/compact<br />
* Easy to position/mount<br />
* 3D<br />
* That it sounds good<br />
* That it can be played expressively (dynamics etc.)<br />
* That the sound genuinely expresses the nature of the movement – a ‘symbiotic’ relationship<br />
* That it’s not assumed the movement will be made using the hands<br />
* That it’s possible to make no sound without having to withdraw from the motion-sensing field – a bit like stopping the bow on a cello string without lifting it up.<br />
* Ideally that it has an option to be polyphonic – played with multiple movements simultaneously<br />
* This brief is open to start work on immediately and you are invited to make and build in your own time using the facilities already available to you. We will meet at Furtherfield on Sunday 21st April at 3pm to review the entries and discuss them, document them etc…<br />
<br />
http://drakemusicresearch.wordpress.com/</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Hackspace_Move/Layout&diff=27805Hackspace Move/Layout2013-02-05T11:25:14Z<p>Mars: /* Music Hackspace */</p>
<hr />
<div>This is a discussion space / list of ideas about how to structure the new Hackspace according to the needs of the subgroups.<br />
<br />
== Music Hackspace ==<br />
<br />
* Regular activities of the group include presentations/talks, performances, workshops.<br />
* Members produce sound and music, build their own instruments, performance tools and installation pieces, and also work in sound and visual projects.<br />
<br />
What we would like to be able to do in the new space:<br />
* Use the main workshop for building instruments/devices.<br />
* Use a space/room/area for organising workshops. A relatively quiet and spacious area/room with light, tables, chairs, projectors, speakers. This space would be also useful for other subgroups/members who organise workshops.<br />
* Use a space/room/area for talks/presentations. This space would be also useful for other subgroups/members who organise talks/presentations.<br />
* Have a Sound Studio for music/sound projects/rehearsals.<br />
* Have a multi use Open Space. This space would allow to set up/test/record installations and performances that involve working with video/image/sound/music/interactivity/screens. It could be also used as a photo/video studio (for instance: shootings, stop motion, streaming projects...). This space would be useful for several other subgroups (VideoHackspace, NotJustArduino, Graphics?)<br />
<br />
What we have to offer as a group:<br />
* Recruitment and outreach: Music Hackspace appeals to people outside of the traditional hacker scene<br />
* Expertise in sound, music, promotion and event organising<br />
* Performances and workshops with broad appeal<br />
* An accessible platform for hackspace members to perform in front of an audience<br />
* We can fund and support a soundsystem for general use in the new space<br />
* We organise events that showcase hackspace members and projects<br />
<br />
== NJA and General Electronics ==<br />
<br />
* Regular activities of the group include presentations/talks, workshops.<br />
* Group member's build their own devices or projects and also work/hack various devices.<br />
<br />
In terms of layout this would ideally imply that in the new space it is possible to:<br />
<br />
* Have an Space/Environment equipped to work on electronics whilst the existing workbench is well equipped multiple work station's with power supplies and solder station would be great <br />
* Have an bespoke for parts and tools to be stored in (possibly colour coded to ensure a bit more consistency with organisation <br />
* Use of a space/room/area for talks/presentations. <br />
* Have an Open Space/Environment to interact with all the other groups<br />
<br />
== Biohackers ==<br />
<br />
* We would ideally like to have our own room which we can get certified by the H&S executive to do GM work. If no room is available we'd like to earmark an area, which we could enclose at some later date.<br />
* We'd like the room to have a proper door, ventilation (as would be running freezers 24/7 which would get the place hot), and running water.<br />
* Ideally size of the current quiet room, so we would have enough space for our kit, and would be able to host workshops / classes in there for 10 people or so.</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Open_Workshops_in_London&diff=27803Open Workshops in London2013-02-05T09:33:56Z<p>Mars: /* Events, Conferences */</p>
<hr />
<div>We were always wondering why there aren't more hackerspace-type organisations in London: social spaces where people come together to make things, share knowledge and skills, etc. When LHS [[History | started]] there was very little activity besides some long-running well-established orgs. Here's a list of some of the ones we've seen since, feel free to expand/amend. Some are old, most are new. Some are meet-ups, some are attempts at creating workshop spaces.<br />
<br />
It's sometimes hard to delineate which orgs to include. I'd like to focus on non-profit maker-type communal workspaces, and *not* on orgs in more well-developed domains such as open source, computer security, the arts, commercial co-working spaces, incubators, etc; however sometimes those boundaries aren't very clear. Jonty defines hackerspaces more narrowly as "community owned and governed communal workshops with a focus on recreational use", but this list is not just limited to hackerspaces.<br />
<br />
See also: [[Other Hackspaces]].<br />
<br />
== Early-Stage ==<br />
<br />
* [https://en-gb.facebook.com/buildingbloqs Buildin Bloqs]<br />
* [http://www.eastlondoninventorsclub.com East London Inventor's Club] (long-running event series, now also looking for a physical space)<br />
* [http://www.therti.org.uk Croydon Round Table of Inventors] (Long-running event series, now also starting an "Invention Centre" in South Norwood; likely commercial.)<br />
* [http://www.uclmakespace.com UCL MakeSpace] (opening in March 2013)<br />
* Brixton Maker/Hackspace meetup, now called [https://groups.google.com/forum/#!forum/brixtontinkerspace Brixton Tinkerspace]<br />
* Repair & Reuse parties (Billy mentioned these; can't find them online. Maybe he meant [http://www.thegoodlifecentre.co.uk/repair-cafe/ Repair Cafés]?)<br />
* [http://remakery.posterous.com/ The Remakery] (Brixton)<br />
* Blackhorse workshop, by Waltham Forest Council ("a new public resource workshop providing space for the creative community, tools and technical support for local making, mending and DIY, and space for artists", now in [https://www.londontenders.org/procontract/supplier.nsf/frm_opportunity?openForm&contract_id=CONTRACT-DNWC-8XPD4D&opp_id=OPP-HIS-DNWC-8XUDAP&search_id=&org_id=ORG-DNWC-8GKC3D&from=supplier_home feasibility stage]) <br />
<br />
== Running ==<br />
<br />
* [http://www.assembleandjoin.co.uk Assemble & Join] (Waterloo, inspired by hackerspaces; they have a CNC router! Not sure if they're commercial or non-profit.)<br />
* [http://sugarhousestudios.co.uk Sugar House Studios] (design/architects; commercial)<br />
* [http://dek.spc.org Deckspace]<br />
* [http://r-a-r-a.com/index.php?/project/about-rara/ RARA] (Clapton, non-profit member-run co-working-ish workshop)<br />
* [http://micycle.org.uk/ Micycle], in Islington. A bike shop with an open-access workshop. Use their tools and stands to fix your bike. It's obviously good etiquette to buy your spare parts from them, if required.<br />
<br />
== Defunct ==<br />
<br />
* [http://hackerspaces.org/wiki/East_London_Hackers East London Hackers]<br />
* Sphinx House in Grays Inn Road (squat)<br />
<br />
== Events, Conferences ==<br />
<br />
* [http://dorkbotlondon.org dorkbot london]<br />
* [http://www.mztek.org MzTek]<br />
* London MakerFaire<br />
* [http://technologywillsaveus.org Technology will Save Us] (mostly a store-in-store, but they also do organise workshops)<br />
* [http://codasign.com codasign] (creative technology workshops)<br />
* [http://www.pawfal.org/openlab/ openlab] (Making art and music with open source/free software)</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Archive:New_Space_Search_2012&diff=26485Archive:New Space Search 20122012-11-19T12:41:48Z<p>Mars: /* Long list */</p>
<hr />
<div>We're looking for a new space to move in once we've got some savings in the bank. We won't be in such a rush to move as [[Archive:New Space 2010|last time]].<br />
<br />
The right space could allow us to run things such as a permanent licensed bar, which could be a boon to the community and also increase our revenue.<br />
<br />
= Requirements =<br />
With a continued rate of growth we will hopefully see an increase in recurring revenue from the current level of £4,800/month to around £6,000/month.<br />
<br />
Ideally we should be looking for somewhere which is less shiny than our current location, so we can make our own mark on the space without having to undo a lot of work when we leave. Think factories and warehouses more than offices.<br />
<br />
We'll probably want to keep approximately the same split of areas as our current space, without reducing any of them in size.<br />
<br />
== High level requirements ==<br />
* At least 5000 sq ft (460 sq m) - our current place is 2600 sq ft.<br />
* In Zone 1 or 2. No further than 2 miles from our current location (because it could cause a disruptive change in our membership when we want it least).<br />
* B1 or B2 use class<br />
* Price less than £6000/month (£75,000/year) inc. service charge & VAT - i.e. less than £15.00/sq ft.<br />
* No more than 0.5 miles to a tube/overground station<br />
* Ground floor OR goods lift<br />
* Separate entrance. Landlord has to be comfortable with hundreds of people having access.<br />
* Noise allowed. We make a lot of noise, and a residential area isn't going to cut it.<br />
* Has some natural light<br />
<br />
== Possible requirements (wishlist) ==<br />
We won't be able to satisfy all of these, but the more the better.<br />
<br />
* A building to ourselves, we'd rather not be renting a unit.<br />
* Roof access<br />
* somewhere secure for bikes<br />
* usable outside area; ideally large enough for firing trebuchet/rockets/pigs.<br />
* convenient parking for motorbikes, cars, etc<br />
<br />
== Non-functional requirements ==<br />
* Friendly landlord<br />
* Easy access<br />
* Fantastic views<br />
<br />
== Scoring ==<br />
= Long list =<br />
Here's a google map to visualise where the list of candidates are: [https://maps.google.co.uk/maps/ms?msid=212088856632983948703.0004c3718222179bf32c2&msa=0&ll=51.52319,-0.075102&spn=0.021602,0.038581]<br />
<br />
==[http://www.rightmove.co.uk/commercial-property-to-let/property-37808303.html 16-22 Pritchard's Road]==<br />
* 5014 sq foot / 466 sq m<br />
* £55,154 pa<br />
* £11 per sqft<br />
* Ground Floor<br />
* High Ceilings<br />
* Gas Central Heating<br />
* Parking<br />
* Loading Bay<br />
* Good Natural Light<br />
<br />
The address I believe is 16-22 Pritchard's Road London E2 9AP, previous tenants Mainstream Printing Services.<br />
<br />
==[http://www.estateoffice.com/property/Hackney-Road/461 445 Hackney Road]==<br />
* 7,114 sq ft<br />
* £8750 + rates at £2250 = £11,000/month<br />
* Not far from the current space.<br />
<br />
==[http://www.workspace.co.uk/london-commercial-property/light-industrial/east-london/marshgate-business-centre/MA.02/ Marshgate Business Centre]==<br />
*7000 sq ft<br />
* £6000/month<br />
<br />
==[http://www.rightmove.co.uk/commercial-property-to-let/property-34747804.html Main Yard, Hackney]==<br />
* 5,000 sq ft<br />
* "The property is available to let on customer focused flexible lease terms and the benefit of no legal fees. Incentives are available to the ingoing tenant subject to lease length."<br />
<br />
==[http://www.rightmove.co.uk/commercial-property-to-let/property-38217614.html Canning Road E15]==<br />
* 6,236 sq ft<br />
* £770 pw<br />
* Close to 6 Tube & Train Stn.<br />
* Electric Shutter(6 meter High)<br />
* CCTV with 8 Camaras<br />
* 6136 sqft with 6.2 m height<br />
* 24/7 Access<br />
* 6 to 7 car park<br />
<br />
==Ruled Out==<br />
<br />
==<s>[http://www.thompsonyates.co.uk/property/42-north-road 42 North Road]</s>==<br />
*15,000 sq ft<br />
*£negotiable<br />
*Massive amounts of work need doing to it, and it's only available on a long lease, so probably ruled out.<br />
<br />
==<s>[http://www.primelocation.com/commercial-property-to-rent/details/id/SHAW11233072/ Wallis Road]</s> No longer on the website, presumed gone==<br />
<br />
*10968 sq ft<br />
*3200 sq ft parking<br />
*£1635 pw<br />
<br />
==<s>[http://www.primelocation.com/commercial-property-to-rent/details/id/SHAW10375043/ Dalston Lane]</s> gone==<br />
<br />
*8000 sq ft<br />
*£1058 pw<br />
<br />
==<s>[http://www.primelocation.com/commercial-property-to-rent/details/id/CHNP999000380/ Pritchards Road]</s> Gone==<br />
<br />
*7200 sq ft<br />
*55000-£87000 pa<br />
<br />
==<s>[http://www.primelocation.com/commercial-property-to-rent/details/id/CMES8235183/ Cheshire St]</s> gone ==<br />
<br />
*7000 sq ft<br />
*£1308 pw<br />
<br />
= Advanced planning =<br />
<br />
== Move ==<br />
Moving will be an enormous task, and will take at least an entire weekend (and probably a week's worth of time in preparation).<br />
<br />
== Build-out of new space ==<br />
There's no guarantee that any location we find will have all the amenities we need, so it's likely we'll have to budget for things such as fitting the kitchen, installing partitions, installing new flooring. Fortunately we should have a decent level of cash on hand.<br />
<br />
== Leaving Cremer Street ==<br />
We need to return the two units to how they were when we arrived, which will require quite a bit of work.<br />
<br />
* Kitchen conversion can probably stay as long as it's fully completed.<br />
* Wall needs replacement breeze blocks (£???) + a day's building + painting.<br />
* All(/most?) walls and doors need repainting. (They do? I'm not sure thats true. --jonty)<br />
* Wet room and storage rooms need reinstating as toilets. Walls do not need to be rebuilt.<br />
<br />
== Links ==<br />
<br />
Self-referential thread of interest; [http://groups.google.com/group/london-hack-space/browse_thread/thread/53861411221690a1/a099470fd633f6b9# New space?]<br />
<br />
= Places to Look =<br />
* [http://www.thespacestation.co.uk/ Space Station]<br />
* [http://www.cityandurban.com/ City & Urban]<br />
* [http://www3.camden.gov.uk/templates/vcp/search.cfm Camden council]<br />
* [http://www.hackney.gov.uk/xr-prop-to-let.htm Hackney council]<br />
* [http://www.towerhamlets.gov.uk/lgsl/51-100/93_commercial_lettings.aspx Tower Hamlets council]<br />
* [http://www.southwark.gov.uk/directory/13/properties_for_let Southwark council]<br />
* [http://www.cityoflondon.gov.uk/Corporation/LGNL_Services/Business/Business_support_and_advice/Locating_in_the_City/property_available.htm City of London council] - includes other boroughs and spreadsheet<br />
* [http://www.spacia.co.uk Spacia] (TfL arches aren't attractive because they require a director of the company to personally guarantee the rent. If there's a particularly good deal we might consider it, though.)<br />
* [http://www.stirlingackroyd.com/commercial-property.aspx Stirling Ackroyd] contact Brett Sulling, mentioning Jeremy Coate from Cushman & Wakefield <br />
* [http://www.strettons.co.uk/ Strettons]<br />
* [http://www.gumtree.com/london/2513_1.html Gumtree] (Looks like mainly nice offices)<br />
* [http://www.pearl-coutts.co.uk/ Pearl & Coutts]<br />
* [http://www.workspacegroup.co.uk/ Workspace Group]<br />
* [http://www.estateoffice.com/ Estate Office]<br />
* [http://www.coppingjoyce.co.uk/ Copping Joyce]<br />
* [http://www.pgmsurveyors.co.uk Pater Goodman Merriman]<br />
* [http://www.richardsusskind.com Richard Susskind]<br />
* [http://londonwarehouses.co.uk/ London Warehouses]<br />
* [http://www.dominion.co.uk/ Dominion Limited] (Some warehouses and railway arches)<br />
* [http://www.spacedup.co.uk/ spacedup] (new name for Amazing spaces) mix of stuff, maybe we could split one of there places?<br />
* [http://www.driverscommercial.co.uk/ Drivers Commercial]<br />
* [http://www.meanwhilespace.com/ Meanwhile Space CIC] "experts on meanwhile uses for empty spaces"<br />
* [http://www.theplacestation.org.uk/ The Place Station] "introduces owners of land and buildings across the UK to social and community entrepreneurs with ideas for transforming their local area"<br />
* [http://www.shawco.com/ Shaw & Co]<br />
* [http://www.primelocation.com/commercial-property-to-rent/search/path/uk.england.london/?t=7,3&s=8 Prime Location] aggregator<br />
<br />
If an agent wants you to sign up for future mailings and you don't want their spam, you can subscribe property@london.hackspace.org.uk</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Equipment/PowerSupplies&diff=24403Equipment/PowerSupplies2012-08-29T17:57:58Z<p>Mars: </p>
<hr />
<div>Apparently we have about 20 bench power supplies of this model http://uk.farnell.com/caltek/psd30-3b/psu-laboratory/dp/1270468<br />
<br />
<br />
If you'd be interested in taking possession of one should any be deemed to be spare register your name here:<br />
{| border="1"<br />
!|Fullname<br />
!|Contact<br />
!|Donation Amount<br />
|-<br />
|Example Name<br />
|example@example.com<br />
|£80<br />
|-<br />
| <br />
| <br />
| <br />
|-<br />
|}<br />
<br />
{|border="1"<br />
!|Tim Storey<br />
!|tim.storey@gmail.com<br />
!|£40<br />
|-<br />
!|Nick Johnson<br />
!|arachnid@notdot.net<br />
!|£40<br />
|-<br />
!|Martin Klang<br />
!|mars@pingdynasty.com<br />
!|£40<br />
|-<br />
!|Kimball Johnson<br />
!|kimball@bowerham.net<br />
!|£30<br />
|}</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Project:MobileSoundSystem&diff=24147Project:MobileSoundSystem2012-08-04T22:49:20Z<p>Mars: /* Components */</p>
<hr />
<div>==Background==<br />
We're building a mobile rig for [http://www.dancebritain.com/ Ben to dance across Britain].<br />
It will be carried on a trike and will have to run for 66 days straight, 8 hours per day.<br />
<br />
==Components==<br />
<pre><br />
EMIALPHA8MR Eminence Alpha 8MR £34.94<br />
EMIDEL12LFC Eminence Delta 12LF - 4 ohm 12" 500W Speaker £57.19<br />
EMIAPT150 Eminence APT150 Tweeter £29.23<br />
LKDX24 Link Dynamics 2-way Crossover 3.5KHz £24.91<br />
MON128620 Monacor BR-50HP Bass Reflex Tube £1.52<br />
<br />
Sound LAB G103QC Mixer<br />
2 line/phono inputs, stereo/mono button, 1 mic input and overall volume control, talk-over button, cross fader and headphone output with volume control<br />
12v DC<br />
£29.95 ebay<br />
<br />
sure electronics 4*100 watt @ 4ohm, TK2050 D-class Audio Amplifier Board<br />
£38.45 ebay<br />
<br />
12v Electronic Active Car Audio Adjustable Crossover Network<br />
Lanzar In Line Subwoofer Crossover<br />
£24.99 ebay<br />
</pre><br />
<br />
==Trike==<br />
[[File:Trike.png|none]]<br />
Bakfiets trike, to be repainted black/yellow.<br />
[[File:Trike_Dimensions.png|500px|none]]<br />
<br />
==Design==<br />
The design consists of two bass enclosures and one for the mids and tops. They are dimensioned to fit into the trike and to be stacked and arranged in various ways depending on use.<br />
[[File:SpeakerBoxes.png|500px|none]]<br />
<br />
<br />
==Parts and Ongoing Work==<br />
From Saturday workshop<br />
[[File:Bike soundsystem DSCN5065.JPG]]<br />
<br />
[[File:Bike soundsystem DSCN5072.JPG]]</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Project:MobileSoundSystem&diff=23845Project:MobileSoundSystem2012-07-19T15:59:10Z<p>Mars: </p>
<hr />
<div>==Background==<br />
We're building a mobile rig for [http://www.dancebritain.com/ Ben to dance across Britain].<br />
It will be carried on a trike and will have to run for 66 days straight, 8 hours per day.<br />
<br />
==Components==<br />
<pre><br />
EMIALPHA8MR Eminence Alpha 8MR £34.94<br />
EMIDEL12LFC Eminence Delta 12LF - 4 ohm 12" 500W Speaker £57.19<br />
EMIAPT150 Eminence APT150 Tweeter £29.23<br />
LKDX24 Link Dynamics 2-way Crossover 3.5KHz £24.91<br />
MON128620 Monacor BR-50HP Bass Reflex Tube £1.52<br />
<br />
Sound LAB G103QC Mixer<br />
2 line/phono inputs, stereo/mono button, 1 mic input and overall volume control, talk-over button, cross fader and headphone output with volume control<br />
12v DC<br />
£29.95 ebay<br />
<br />
sure electronics 4*100 watt @ 4ohm, TK2050 D-class Audio Amplifier Board<br />
£38.45 ebay<br />
<br />
12v Electronic Active Car Audio Adjustable Crossover Network<br />
Lanzar In Line Subwoofer Crossover<br />
£24.99 ebay<br />
</pre><br />
<br />
==Trike==<br />
[[File:Trike.png|none]]<br />
Bakfiets trike, to be repainted black/yellow.<br />
[[File:Trike_Dimensions.png|500px|none]]<br />
<br />
<br />
==Design==<br />
The design consists of two bass enclosures and one for the mids and tops. They are dimensioned to fit into the trike and to be stacked and arranged in various ways depending on use.<br />
[[File:SpeakerBoxes.png|500px|none]]</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Project:MobileSoundSystem&diff=23844Project:MobileSoundSystem2012-07-19T15:56:32Z<p>Mars: </p>
<hr />
<div>==Background==<br />
We're building a mobile rig for [http://www.dancebritain.com/ Ben to dance across Britain].<br />
It will be carried on a trike and will have to run for 66 days straight, 8 hours per day.<br />
<br />
==Components==<br />
<pre><br />
EMIALPHA8MR Eminence Alpha 8MR £34.94<br />
EMIDEL12LFC Eminence Delta 12LF - 4 ohm 12" 500W Speaker £57.19<br />
EMIAPT150 Eminence APT150 Tweeter £29.23<br />
LKDX24 Link Dynamics 2-way Crossover 3.5KHz £24.91<br />
MON128620 Monacor BR-50HP Bass Reflex Tube £1.52<br />
<br />
Sound LAB G103QC Mixer<br />
2 line/phono inputs, stereo/mono button, 1 mic input and overall volume control, talk-over button, cross fader and headphone output with volume control<br />
12v DC<br />
£29.95 ebay<br />
<br />
sure electronics 4*100 watt @ 4ohm, TK2050 D-class Audio Amplifier Board<br />
£38.45 ebay<br />
<br />
12v Electronic Active Car Audio Adjustable Crossover Network<br />
Lanzar In Line Subwoofer Crossover<br />
£24.99 ebay<br />
</pre><br />
<br />
==Trike==<br />
[[File:Trike.png]]<br />
Bakfiets trike, to be repainted black/yellow.<br />
[[File:Trike_Dimensions.png|500px]]<br />
<br />
<br />
==Design==<br />
The design consists of two bass enclosures and one for the mids and tops. They are dimensioned to fit into the trike and to be stacked and arranged in various ways depending on use.<br />
[[File:SpeakerBoxes.png|500px]]</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=File:SpeakerBoxes.png&diff=23843File:SpeakerBoxes.png2012-07-19T15:52:37Z<p>Mars: </p>
<hr />
<div></div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=File:Trike.png&diff=23842File:Trike.png2012-07-19T15:52:02Z<p>Mars: </p>
<hr />
<div></div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Project:MobileSoundSystem&diff=23841Project:MobileSoundSystem2012-07-19T15:51:41Z<p>Mars: </p>
<hr />
<div>==Background==<br />
We're building a mobile rig for [http://www.dancebritain.com/ Ben to dance across Britain].<br />
It will be carried on a trike and will have to run for 66 days straight, 8 hours per day.<br />
<br />
==Components==<br />
<pre><br />
EMIALPHA8MR Eminence Alpha 8MR £34.94<br />
EMIDEL12LFC Eminence Delta 12LF - 4 ohm 12" 500W Speaker £57.19<br />
EMIAPT150 Eminence APT150 Tweeter £29.23<br />
LKDX24 Link Dynamics 2-way Crossover 3.5KHz £24.91<br />
MON128620 Monacor BR-50HP Bass Reflex Tube £1.52<br />
<br />
Sound LAB G103QC Mixer<br />
2 line/phono inputs, stereo/mono button, 1 mic input and overall volume control, talk-over button, cross fader and headphone output with volume control<br />
12v DC<br />
£29.95 ebay<br />
<br />
sure electronics 4*100 watt @ 4ohm, TK2050 D-class Audio Amplifier Board<br />
£38.45 ebay<br />
<br />
12v Electronic Active Car Audio Adjustable Crossover Network<br />
Lanzar In Line Subwoofer Crossover<br />
£24.99 ebay<br />
</pre><br />
<br />
==Trike==<br />
Bakfiets trike, to be repainted black/yellow.<br />
[[File:Trike_Dimensions.png]]</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=File:Trike_Dimensions.png&diff=23840File:Trike Dimensions.png2012-07-19T15:51:02Z<p>Mars: </p>
<hr />
<div></div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Project:MobileSoundSystem&diff=23839Project:MobileSoundSystem2012-07-19T15:50:13Z<p>Mars: Created page with "==Background== We're building a mobile rig for [http://www.dancebritain.com/ Ben to dance across Britain]. It will be carried on a trike and will have to run for 66 days straight..."</p>
<hr />
<div>==Background==<br />
We're building a mobile rig for [http://www.dancebritain.com/ Ben to dance across Britain].<br />
It will be carried on a trike and will have to run for 66 days straight, 8 hours per day.<br />
<br />
==Components==<br />
<pre><br />
EMIALPHA8MR Eminence Alpha 8MR £34.94<br />
EMIDEL12LFC Eminence Delta 12LF - 4 ohm 12" 500W Speaker £57.19<br />
EMIAPT150 Eminence APT150 Tweeter £29.23<br />
LKDX24 Link Dynamics 2-way Crossover 3.5KHz £24.91<br />
MON128620 Monacor BR-50HP Bass Reflex Tube £1.52<br />
<br />
Sound LAB G103QC Mixer<br />
2 line/phono inputs, stereo/mono button, 1 mic input and overall volume control, talk-over button, cross fader and headphone output with volume control<br />
12v DC<br />
£29.95 ebay<br />
<br />
sure electronics 4*100 watt @ 4ohm, TK2050 D-class Audio Amplifier Board<br />
£38.45 ebay<br />
<br />
12v Electronic Active Car Audio Adjustable Crossover Network<br />
Lanzar In Line Subwoofer Crossover<br />
£24.99 ebay<br />
</pre><br />
<br />
==Trike==<br />
Bakfiets trike, to be repainted black/yellow.</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=SuperServerBonanzaBids&diff=23771SuperServerBonanzaBids2012-07-16T17:15:56Z<p>Mars: </p>
<hr />
<div>= Server Bids =<br />
<br />
See the list of servers [[Super_Server_Bonanza|here]].<br />
<br />
Two phase bidding process:<br />
<br />
1. It would be really cool if Hackspace members can benefit from these servers by getting hardware to enable projects that may otherwise not happen. <br />
<br />
2. It would also be cool if Hackspace can benefit financially from any donations that people wish to make for any of this hardware.<br />
<br />
Try looking on ebay to get an idea of the value of these devices...<br />
<br />
<br />
== Place your bids please :-) ==<br />
<br />
Just edit this page.<br />
<br />
NOTE that there should be scope to shuffle some of the components around between some of the severs of the same brand and model<br />
<br />
--[[User:SimonK|Simon]] 19:44, 21 June 2012 (UTC)<br />
----<br />
<br />
=== Bid 1 - tgreer ===<br />
<br />
Agreed with Simon that I will have:<br />
<br />
008 DL380 G5 2xquad core 3.0 GHz 4gb Nil<br />
016 DL380 G5 2xquad core 3.0 GHz 4gb Nil<br />
<br />
+ Drives which Simon put in them yesterday (Friday night)<br />
<br />
There will be a cash donation to the space (£TBC) and 2 servers supplied to other hackspace members.<br />
<br />
[[User:Tgreer@tsone.info|Tgreer@tsone.info]] 16:02, 30 June 2012 (UTC)<br />
<br />
=== Bid 2. - *BSD ===<br />
<br />
1 x Sun V445 - openbsd/sparc development (Cambridge)<br />
1 x Sun V445 - netbsd/sparc development (?)<br />
1 x Sun T2000 - netbsd port to niagra (?)<br />
<br />
=== Bid 3 - Martin Klang ===<br />
<br />
2 * IBM x3950M2 - Quad 2.4GHz with 128G RAM - Martin upstairs <br />
<br />
Martin made this pile of kit available by collecting in his van - many thanks :-)<br />
<br />
The plan is to build a VM box for development of various projects I'm involved with, such as Dissident Island Radio, Occupied (not occupy!) London, and Music Hackspace projects.<br />
<br />
Also I'd like to buy a DL380 G5 to replace my G4.<br />
016 DL380 G5 2xquad core 3.0 GHz 4gb £80.00<br />
<br />
<br />
=== Bid 4 - HackSpace virtual server project ===<br />
<br />
2 * IBM x3950M2 - Quad 2.4GHz with 128G RAM - For Hackspace virtualisation project (aim to provide virtual machines for anyone who wants one)<br />
<br />
=== Bid 5 - Jasper/EMFCamp ===<br />
<br />
1 x Sun x4600 as fully loaded as possible.<br />
<br />
=== Bid 6.0 - Ninlilizi - Pro Roma/Traveller campaigning ===<br />
*Bid changed (again) once I stopped drooling and got a more acurate colocating budget worked out<br />
2* DL380 G5 2xquad core 3.0 GHz 4gb If possible... Could I get this with a side order of extra ram?....<br />
<br />
Yes I'd <3 one of those machines with more ram then I could fit onto a 747 full of sheep... But realistically, the power requirements of the machine would be a financial drain looking at datacentre energy related price points for the initial development and testing phases. Though, plainly when reaching the end of the year... One of those 128GB quad, quad beasts is exactly what will be needed in adition to the G5's.... Though would be delighted with just the G5's alone at this immediate stage of the project. I just humbly ask that you consider the potential for a life changing prospect for what are the most universally dissavantaged and oppressed people througout recent history. And give this the chance you feel it's worth.<br />
<br />
I'm looking for something that I can use to consolidate a chunk of existing stuff. As well as providing a incubator for current projects and collaborative environment.<br />
<br />
I'm involved in various projects all relating to either Traveller or Roma rights which span the entirely of Europe through to India.<br />
I'm involved in looking after infrastructure for the Traveller Solidarity network (While bought you last years Dale Farm resistence)... This involves multiple websites and are looking for something to support a good set of collaborative tools to make remote working more efficient... And to teach the hippies that there is more to online orgnising then email lists.<br />
<br />
Also, I'm currently involved in incubating some projects relating to european Roma.<br />
Here I am working with some real experienced members of the community who have been doing full time voluntary work at the grass roots level in support of Roma across the entirety of europe for the last 50 years. And these people have been the driving force behind everything positive in that area that has happened in that timeframe.<br />
So... Lot's of things being explored there to bring these peoples campaigning upto modern day tech.<br />
<br />
A big project we are just embarking upon... Which we're looking to spend the next several years developing and putting together is a system to enable the entire Roma population the ability to vote on various issues relevant to the work of various pro-roma organisations. Yes, there are an aweful lots of us across europe... So this is no simple task, either techinically or socially. But is seen as an ongoing long term project to bring Roma the first proper political self-representation of wishes and oppinions in history. And building on this to eventually support an application for associate membership of the UN<br />
Beyond the already experienced people in the political and legal arena's... Tech again is a new tool in this fight... And lot's of potential solutions are being explored and advice taken for how to progress with making this happen. And it is understood that the scale is going to require a real special solution developing. My personal skill level for reference is 2 decades of obsessively fulltime personal code tinkering and beating linux with a hammer. So, have a very capable techincal background to be attempting such a large project. Also, anything awesome developed would be shared with the world.<br />
This is going to involves some extreme levels of concurrency however it is sliced... I've got a technically solid plan for achiving some real tight cpu requirements for this. But will still require a crazy chunk of ram to happen... Not detailing technical stuff in public... But would be happy to discuss directly if your concerened about the potential sanity of my approach :)<br />
There are also a pile of smaller projects, involving low level social networking and educational stuff all for the benefit of Roma.<br />
And again a good piece of iron with plenty of resources will make the development and testing of solutions designed for scalling to epic proportions and developing a unique solution to turn this scary task into a piece of elegance... will make life so much easier... and hopefully supply something that can keep the long term stuff floating without having to worry about buying more kit for a very long time.<br />
<br />
Now, I realise that colocating this stuff is not entirely cheap excursion. But, although immediate budgets are non existent. The number of pro Traveller and pro Roma pies I'm tech supporting and friendly organisations. A good piece of iron that can be carved up into virtualised pieces to consolodate their stuff. Jointly funded by all of them... Which has been confirmed people are willing to do, if I can make the hardware happen. Would then become more manageable. And save me no end of administrative tail chasing by overall reducing the amount of seperate stuff scattered all over the place for the pile of humanitarian projects I am supporting.<br />
And any spare resources, I'd hope to be able to offer to other similar projects that may help my people. As may come along<br />
<br />
=== Bid 6.1 - Ninlilizi - Personal projects (and cheaper to run endpoint for my home internet connection) ===<br />
1* DL360 2xdual core 3.0 GHz 4gb <br />
Could I get more information about the fault? ie, would I be looking to womble a new controller or just the drives?<br />
This one... I would like for personal projects.... As it is twice as powerful in every spec to my current dedibox.. And have a rack of quotes from local facilities where I could host it at 2/3rds the cost of what I'm paying now. So will increase my headroom for awesome hacking.<br />
<br />
----<br />
----<br />
<br />
=== Bid 7 - Dave Brown ===<br />
2* multiple-CPU boxes with heaps of memory (more than 4GB per CPU, and a moderate amount of disk (100 GB sounds good to me).<br />
For example IBM x3950M2 Quad, 128gb<br />
Or alternatively Sun 4600 with lots of CPUs<br />
<br />
The ambition is to build a test compute server environment, where concurrent algorithms can be tested with raw and unrestricted access to the hardware. In a sense, this is the opposite end of a virtual machine server - as convenience is sacrificed to performance.<br />
My initial area of interest is the C++11 concurrency model, locking primitives, and memory model.<br />
<br />
I would like 2 servers for resiliency and to explore the x9350M2 link behaviour<br />
I have a slight preference for 2.9GHz x3950s<br />
<br />
=== Bid 8 - Jon Fautley ===<br />
1 x DL380 G5 (#004) - £75.00<br />
<br />
=== Bid 9 - Ashley Nicholls (spooky) ===<br />
1 x x3950M2 servers (128GB) - £150 <br />
<br />
=== Bid 10 - Will Gilchrist (Big Will) ===<br />
#6 - £60 (X3850 M2)<br />
#12 - £60 (X3850 M2)<br />
<br />
Wanted to build a testing enviroment for software development.<br />
<br />
=== Bid N. ===</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=SuperServerBonanzaBids&diff=23333SuperServerBonanzaBids2012-06-21T21:46:24Z<p>Mars: /* Bid 3 - Martin Klang */</p>
<hr />
<div>= Server Bids =<br />
<br />
See the list of servers [[Super_Server_Bonanza|here]].<br />
<br />
Two phase bidding process:<br />
<br />
1. It would be really cool if Hackspace members can benefit from these servers by getting hardware to enable projects that may otherwise not happen. <br />
<br />
2. It would also be cool if Hackspace can benefit financially from any donations that people wish to make for any of this hardware.<br />
<br />
Try looking on ebay to get an idea of the value of these devices...<br />
<br />
<br />
== Place your bids please :-) ==<br />
<br />
Just edit this page.<br />
<br />
NOTE that there should be scope to shuffle some of the components around between some of the severs of the same brand and model<br />
<br />
--[[User:SimonK|Simon]] 19:44, 21 June 2012 (UTC)<br />
----<br />
<br />
=== Bid 1. ===<br />
<br />
<br />
Bidding for Serial 007 or Serial 004. This is purely commercial so would be a financial donation to a space, Simon to set a price for one or both, if only 1 available I'd prefer the 007 server. Also looking for some disks to go with it there are any<br />
<br />
Thanks<br />
<br />
tgreer<br />
20:46, 21 June 2012 (UTC)<br />
<br />
=== Bid 2. - NetBSD ===<br />
<br />
1 x Sun V445 - openbsd/sparc development (Cambridge)<br />
1 x Sun V445 - netbsd/sparc development (?)<br />
1 x Sun T2000 - netbsd port to niagra (?)<br />
<br />
=== Bid 3 - Martin Klang ===<br />
<br />
2 * IBM x3950M2 - Quad 2.4GHz with 128G RAM - Martin upstairs <br />
<br />
Martin made this pile of kit available by collecting in his van - many thanks :-)<br />
<br />
The plan is to build a VM box for development of various projects I'm involved with, such as Dissident Island Radio, Occupied (not occupy!) London, and Music Hackspace projects.<br />
<br />
Also I'd like to buy a DL380 G5 to replace my G4, bidding £60.00.<br />
<br />
=== Bid 4 - HackSpace virtual server project ===<br />
<br />
2 * IBM x3950M2 - Quad 2.4GHz with 128G RAM - For Hackspace virtualisation project (aim to provide virtual machines for anyone who wants one)<br />
<br />
<br />
----<br />
----<br />
<br />
=== Bid N. ===</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=SuperServerBonanzaBids&diff=23332SuperServerBonanzaBids2012-06-21T21:44:43Z<p>Mars: /* Bid 3 - Martin Klang */</p>
<hr />
<div>= Server Bids =<br />
<br />
See the list of servers [[Super_Server_Bonanza|here]].<br />
<br />
Two phase bidding process:<br />
<br />
1. It would be really cool if Hackspace members can benefit from these servers by getting hardware to enable projects that may otherwise not happen. <br />
<br />
2. It would also be cool if Hackspace can benefit financially from any donations that people wish to make for any of this hardware.<br />
<br />
Try looking on ebay to get an idea of the value of these devices...<br />
<br />
<br />
== Place your bids please :-) ==<br />
<br />
Just edit this page.<br />
<br />
NOTE that there should be scope to shuffle some of the components around between some of the severs of the same brand and model<br />
<br />
--[[User:SimonK|Simon]] 19:44, 21 June 2012 (UTC)<br />
----<br />
<br />
=== Bid 1. ===<br />
<br />
<br />
Bidding for Serial 007 or Serial 004. This is purely commercial so would be a financial donation to a space, Simon to set a price for one or both, if only 1 available I'd prefer the 007 server. Also looking for some disks to go with it there are any<br />
<br />
Thanks<br />
<br />
tgreer<br />
20:46, 21 June 2012 (UTC)<br />
<br />
=== Bid 2. - NetBSD ===<br />
<br />
1 x Sun V445 - openbsd/sparc development (Cambridge)<br />
1 x Sun V445 - netbsd/sparc development (?)<br />
1 x Sun T2000 - netbsd port to niagra (?)<br />
<br />
=== Bid 3 - Martin Klang ===<br />
<br />
2 * IBM x3950M2 - Quad 2.4GHz with 128G RAM - Martin upstairs <br />
<br />
Martin made this pile of kit available by collecting in his van - many thanks :-)<br />
<br />
The plan is to build a VM box for development of various projects I'm involved with, such as Dissident Island Radio, Occupied (not occupy!) London, and Music Hackspace projects.<br />
<br />
Also I'd like to buy a DL380 G5 to replace my G4, biddin £60.00.<br />
<br />
=== Bid 4 - HackSpace virtual server project ===<br />
<br />
2 * IBM x3950M2 - Quad 2.4GHz with 128G RAM - For Hackspace virtualisation project (aim to provide virtual machines for anyone who wants one)<br />
<br />
<br />
----<br />
----<br />
<br />
=== Bid N. ===</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Group:Music_Hack_Space&diff=22397Group:Music Hack Space2012-04-18T13:06:46Z<p>Mars: /* Meetings and workshops */</p>
<hr />
<div>The London Music Hack Space is a place to share thoughts, knowledge, technologies, processes and aesthetics on music and audio. We welcome artists, engineers, students, and lawyers too! We meet every Thursday. Someone presents an on going project. It starts off discussions, and after that we have pizzas, split in groups and get hands on with our projects or sometime with the technology we just learned. <br />
<br />
To make sure you stay on top of what is going on please follow us on our new website <br />
[http://www.musichackspace.org/ http://www.musichackspace.org/]<br />
<br />
<br />
=== Mailing List ===<br />
<br />
There is a dedicated [http://groups.google.com/group/london-music-hack-space mailing list] to discuss our activities.<br />
<br />
Follow us on Twitter [https://twitter.com/MusicHackSpace @MusicHackSpace]<br />
<br />
=== Meetings and workshops ===<br />
<br />
Meetings take place every Thursday from 7pm onwards. They are usually happening upstairs from the LHS, in unit 30.<br />
<br />
We start the meet ups with a short presentation (5/10 min). Talks can be a starting point for collaborations. Speakers are invited to come forward with work in progress, ongoing ideas, prototypes, technological issues, whatever they may find useful to share and get feedback on. <br />
<br />
For the latest events visit [http://musichackspace.org/?page_id=14 musichackspace.org]<br />
<br />
=== Projects ===<br />
<br />
* [[Embedded Audio]]<br />
<br />
* [[Sound installations]]<br />
<br />
* [[Field recordings]]<br />
<br />
* [[An algorithm to make a hit]]<br />
<br />
* [[Hack traditional instruments]]<br />
<br />
* [[The Augmented Bass|The Augmented 𝄢Bass]]<br />
<br />
* [[Hack acoustic spaces]]<br />
<br />
* [[Augmented instruments]]<br />
<br />
* [[Contribute to Music Hack Day]]<br />
<br />
* [[Projects/Solenoid_Drums|Solenoid Drumkit]]<br />
<br />
* [[Visits to Interesting Audible Spaces]]<br />
<br />
* [[Cartesian Sequencer]]<br />
<br />
* [[Radio Console Shruthi]]<br />
<br />
* [[Sheet Music Extension for Collectionista]]<br />
<br />
=== People ===<br />
<br />
Create a profile using [[Music_hackspacer_profile|this template]] and add yourself below<br />
<br />
* [[User:Ariel|Ariel]]<br />
* [[User:Jbt|Jean-Baptiste Thiebaut]]<br />
* [[User:Philip Clevberger|Philip Clevberger]]<br />
* [[User:Zed|Zed]]<br />
* [[User:Tasteforreality|Guy J]]<br />
* [[User:Billy Smith|Billy Smith]]<br />
* [[User:Vortexion|Richard Atkinson]]<br />
* [[User:pjv|pjv]]<br />
<br />
<br />
* [[Music_hackspacer_profile|You!]]<br />
<br />
=== Resources ===<br />
<br />
====Creative Commons Licensed Samples====<br />
<br />
A bank of samples recorded and created by us. All to be licensed under the Creative Commons, Non-Commercial, Attribution License.<br />
<br />
<br />
====Open-source Libraries====<br />
* [https://ccrma.stanford.edu/software/stk/ The Synthesis ToolKit in C++]<br />
A set of open source audio signal processing and algorithmic synthesis classes written in C++, designed to facilitate rapid development of music synthesis and audio processing software, with an emphasis on cross-platform functionality, realtime control, ease of use, and educational example code. <br />
*[http://freeverb3.sourceforge.net/ Freeverb]<br />
A powerful sound processing library, supporting zero-latency realtime sound effect processing.<br />
*[http://gitorious.org/pdlib libpd]<br />
A port of Pure Data for iOS and Android.<br />
*[http://urmus.eecs.umich.edu/ urMus]<br />
A meta-environment for live and interactive application design and programming on and for iOS and Android.<br />
*[http://overtone.github.com/ Overtone]<br />
An open source audio environment being created to explore musical ideas from synthesis and sampling to instrument building, live-coding and collaborative jamming. Uses the SuperCollider synth server as the audio engine, with Clojure being used to develop the APIs and the application. Synthesizers, effects, analyzers and musical generators can be programmed in Clojure.<br />
*[[Musescore API]] A Java API for Musescore.com.<br />
<br />
====Sensors====<br />
*[http://www.podbreakout.com/ PodBreakout]<br />
Makes it easy to connect an iPhone, iPad or iPod to your computer or arduino project. PodBreakout brings all 30 pins from the dock connector and makes it easy to solder wires to. Apple Developer reference [http://developer.apple.com/library/ios/#featuredarticles/ExternalAccessoryPT/Introduction/Introduction.html here].<br />
*[http://res.marcodonnarumma.com/category/xth-sense/hardware-design/ Xth Sense]<br />
Mechanical muscle-activity pickup for instrument control.<br />
*[http://en.wikipedia.org/wiki/Contact_microphone Contact microphones]<br />
A type of microphone designed to sense vibrations through solid objects. Used in the [[The Augmented Bass|Augmented Bass project]]. Buy five of them for £1.65 [http://www.ebay.co.uk/itm/120796072992?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649#ht_1208wt_1066 here].<br />
<br />
====Theory & Tutorials====<br />
*[http://www.sensorwiki.org/doku.php Sensor Wiki]<br />
This wiki provides thorough reviews of the main types of sensing technologies used in musical applications, as well as tutorials on building sensor interfaces.<br />
*[http://vipre.uws.edu.au/dmi/ (Encyclopedia of) Digital Music Instruments]<br />
A comprehensive overview of new digital music instrument and interfaces.<br />
*[http://www.phys.unsw.edu.au/music/ Basics of Music Acoustics]<br />
The art and science of music acoustics are presented here, in musician-friendly format.<br />
* [http://www.independentrecording.net/irn/resources/freqchart/main_display.htm Interactive Frequency Chart]<br />
A graphical explanation of the frequencies produced by traditional instruments. <br />
* [http://obiwannabe.co.uk/html/toys/toys.html Pure Data Synths, Toys and Gizmos]<br />
Cool and easy Pure Data projects with detailed instructions and explanations.<br />
* [http://www.rumblesan.com/?cat=54 The ''Patch-a-day Month'' Pure Data Projects]<br />
A set of witty and useful Pure Data patches, complete with walkthroughs.</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Project:Radio_Console_Shruthi&diff=18759Project:Radio Console Shruthi2011-10-28T13:18:24Z<p>Mars: </p>
<hr />
<div>There is an idea to use the radio consoles that Phil (cepmender) have to build a diy synth and sequencer.<br />
<br />
The console key matrix and LEDs have been reverse engineered: [[Projects/Dispatcher]]<br />
<br />
Possibly based on the [http://mutable-instruments.net/ shruthi] synth.<br />
<br />
Interested parties (add yourself):<br />
Guy, Andrew, Martin (mars).</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Group:Music_Hack_Space&diff=18758Group:Music Hack Space2011-10-28T13:13:26Z<p>Mars: /* Presentations */</p>
<hr />
<div>=== Presentations ===<br />
<br />
<br />
We start the meet ups with a short presentation (5/10 min). Talks can be a starting point for collaborations. Speakers are invited to come forward with work in progress, ongoing ideas, prototypes, technological issues, whatever they may find useful to share and get feedback on. <br />
<br />
* Thursday 03/11/2011, 7pm: Sam Duffy on her [[Augmented Saxophone]]<br />
* Thursday 10/11/2011, 7pm: Tim Murray-Browne, [[IMPOSSIBLE ALONE]], sound installation<br />
* Thursday 17/11/2011, 7pm: Martin (mars), [http://blipbox.org/blog/projects/taquito/ Taquito], electronic wind instrument<br />
<br />
<br />
Past<br />
* Thursday 27/10/2011, 7pm: Filip (Zambari) on [[Arduino based Harmonic Clock project]]<br />
* Thursday 20/10/2011, 7pm: Chris Jack on Hydrophone microphone recordings and brainwave music control (EEGs + PureData)<br />
<br />
=== Projects ===<br />
<br />
* [[Embedded Audio]]<br />
<br />
* [[Sound installations]]<br />
<br />
* [[Field recordings]]<br />
<br />
* [[An algorithm to make a hit]]<br />
<br />
* [[Hack traditional instruments]]<br />
<br />
* [[Hack acoustic spaces]]<br />
<br />
* [[Augmented instruments]]<br />
<br />
* [[Contribute to Music Hack Day]]<br />
<br />
* [[Projects/Solenoid_Drums|Solenoid Drumkit]]<br />
<br />
* [[Visits to Interesting Audible Spaces]]<br />
<br />
* [[Cartesian Sequencer]]<br />
<br />
* [[Radio Console Shruthi]]<br />
<br />
=== People ===<br />
<br />
* Create a profile using this [[Music_hackspacer_profile| template]] and add yourself below<br />
<br />
=== Mailing List ===<br />
<br />
There is a dedicated [http://groups.google.com/group/london-music-hack-space mailing list] to discuss our activities.<br />
<br />
Follow us on Twitter [https://twitter.com/MusicHackSpace @MusicHackSpace]</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Project:Cartesian_Sequencer&diff=18710Project:Cartesian Sequencer2011-10-27T20:25:56Z<p>Mars: </p>
<hr />
<div>Inspired by MakeNoise [http://www.makenoisemusic.com/RENE.html Rene].<br />
Software and hardware versions.<br />
<br />
More info on cartesian sequencers on Guy's [http://www.rumblesan.com/ blog].<br />
<br />
Interested parties (add yourself):<br />
Guy, Andrew, Martin (mars).</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Project:Radio_Console_Shruthi&diff=18709Project:Radio Console Shruthi2011-10-27T20:25:21Z<p>Mars: </p>
<hr />
<div>There is an idea to use the radio consoles that Phil (cepmender) have to build a diy synth and sequencer.<br />
<br />
Possibly based on the [http://mutable-instruments.net/ shruthi] synth.<br />
<br />
Interested parties (add yourself):<br />
Guy, Andrew, Martin (mars).</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Project:Cartesian_Sequencer&diff=18708Project:Cartesian Sequencer2011-10-27T20:23:55Z<p>Mars: Created page with "Inspired by MakeNoise [http://www.makenoisemusic.com/RENE.html Rene]. Software and hardware versions. More info on cartesian sequencers on Guy's [http://www.rumblesan.com/ blog]."</p>
<hr />
<div>Inspired by MakeNoise [http://www.makenoisemusic.com/RENE.html Rene].<br />
Software and hardware versions.<br />
<br />
More info on cartesian sequencers on Guy's [http://www.rumblesan.com/ blog].</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Group:Music_Hack_Space&diff=18707Group:Music Hack Space2011-10-27T20:21:23Z<p>Mars: /* Projects */</p>
<hr />
<div>=== Presentations ===<br />
<br />
<br />
We start the meet ups with a short presentation (5/10 min). Talks can be a starting point for collaborations. Speakers are invited to come forward with work in progress, ongoing ideas, prototypes, technological issues, whatever they may find useful to share and get feedback on. <br />
<br />
* Thursday 27/10/2011, 7pm: Filip (Zambari) on [[Arduino based Harmonic Clock project]]<br />
* Thursday 03/11/2011, 7pm: Sam Duffy on her [[Augmented Saxophone]]<br />
* Thursday 10/11/2011, 7pm: Tim Murray-Browne, [[IMPOSSIBLE ALONE]], sound installation<br />
<br />
Past<br />
* Thursday 20/10/2011, 7pm: Chris Jack on Hydrophone microphone recordings and brainwave music control (EEGs + PureData)<br />
<br />
=== Projects ===<br />
<br />
* [[Embedded Audio]]<br />
<br />
* [[Sound installations]]<br />
<br />
* [[Field recordings]]<br />
<br />
* [[An algorithm to make a hit]]<br />
<br />
* [[Hack traditional instruments]]<br />
<br />
* [[Hack acoustic spaces]]<br />
<br />
* [[Augmented instruments]]<br />
<br />
* [[Contribute to Music Hack Day]]<br />
<br />
* [[Projects/Solenoid_Drums|Solenoid Drumkit]]<br />
<br />
* [[Visits to Interesting Audible Spaces]]<br />
<br />
* [[Cartesian Sequencer]]<br />
<br />
* [[Radio Console Shruthi]]<br />
<br />
=== Mailing List ===<br />
<br />
There is a dedicated [http://groups.google.com/group/london-music-hack-space mailing list] to discuss our activities.<br />
<br />
Follow us on Twitter [https://twitter.com/MusicHackSpace @MusicHackSpace]</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Project:Radio_Console_Shruthi&diff=18706Project:Radio Console Shruthi2011-10-27T20:21:07Z<p>Mars: Created page with "There is an idea to use the radio consoles that Phil (cepmender) have to build a diy synth and sequencer. Possibly based on the [http://mutable-instruments.net/ shruthi] synth."</p>
<hr />
<div>There is an idea to use the radio consoles that Phil (cepmender) have to build a diy synth and sequencer.<br />
Possibly based on the [http://mutable-instruments.net/ shruthi] synth.</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Group:Music_Hack_Space&diff=18705Group:Music Hack Space2011-10-27T20:19:26Z<p>Mars: /* Projects */</p>
<hr />
<div>=== Presentations ===<br />
<br />
<br />
We start the meet ups with a short presentation (5/10 min). Talks can be a starting point for collaborations. Speakers are invited to come forward with work in progress, ongoing ideas, prototypes, technological issues, whatever they may find useful to share and get feedback on. <br />
<br />
* Thursday 27/10/2011, 7pm: Filip (Zambari) on [[Arduino based Harmonic Clock project]]<br />
* Thursday 03/11/2011, 7pm: Sam Duffy on her [[Augmented Saxophone]]<br />
* Thursday 10/11/2011, 7pm: Tim Murray-Browne, [[IMPOSSIBLE ALONE]], sound installation<br />
<br />
Past<br />
* Thursday 20/10/2011, 7pm: Chris Jack on Hydrophone microphone recordings and brainwave music control (EEGs + PureData)<br />
<br />
=== Projects ===<br />
<br />
* [[Embedded Audio]]<br />
<br />
* [[Sound installations]]<br />
<br />
* [[Field recordings]]<br />
<br />
* [[An algorithm to make a hit]]<br />
<br />
* [[Hack traditional instruments]]<br />
<br />
* [[Hack acoustic spaces]]<br />
<br />
* [[Augmented instruments]]<br />
<br />
* [[Contribute to Music Hack Day]]<br />
<br />
* [[Projects/Solenoid_Drums|Solenoid Drumkit]]<br />
<br />
* [[Visits to Interesting Audible Spaces]]<br />
<br />
* [[Cartesian Sequencer]]<br />
In software and hardware<br />
<br />
* [[Radio Console Shruthi]]<br />
<br />
=== Mailing List ===<br />
<br />
There is a dedicated [http://groups.google.com/group/london-music-hack-space mailing list] to discuss our activities.<br />
<br />
Follow us on Twitter [https://twitter.com/MusicHackSpace @MusicHackSpace]</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Equipment/HPC_LS3060_Laser_Cutter/LogBook&diff=18113Equipment/HPC LS3060 Laser Cutter/LogBook2011-09-23T10:15:52Z<p>Mars: /* Logbook */</p>
<hr />
<div>__NOTOC__<br />
==Logbook==<br />
<br />
=== 23/9/2011 note by mars ===<br />
I copied over the LaserCutter53 folder from the old disk and put in on the desktop of the new one. It works.<br />
<br />
<br />
=== 22/9/2011 by [[User:Ms7821|Mark]] ===<br />
After the laser cutter computer failed, Sci brought in a new one to replace it. This has been set up with XPH, and the software off the internet, but hasn't been tested. Palfrey had a look for the original software yesterday, but that's the last I heard. Don't expect it to work unless you know how to set it up yourself.<br />
<br />
=== 15/9/2011 by asc ===<br />
<br />
Ordered the below replacement fan, should turn up at the space Friday.<br />
cpc.farnell.com/jsp/search/productdetail.jsp?SKU=MF67600<br />
<br />
=== 10/9/2011 note by mars ===<br />
Tried the same cut with reduced power and changed the engraving 'gap' setting. Scan gap was set to 0.05 which causes quite extreme striation. With speed=400 and scan gap=0.01 things didn't go well - the engraving didn't seem to progress horizontally at all and the head started moving off the bed. Not sure if this was caused by belt slippage, but I had to stop and reset the head position.<br />
To engrave on perspex, seems to work well when halving power, e.g. power=10 speed=200 gap=0.025. Makes a nice, solid pattern. I tried with the recommended power=20, which went well deep and scorched, actually charred, the material. Not seen that before.<br />
Cut 4mm perspex at power 60, speed 4. Might be possible to turn power down even more.<br />
In short, to cut or engrave reduce the power by 1/2!<br />
<br />
I think the scan gap should be calculated as follows: 150 DPI = 150/25.4 ~ 5.9 points/mm. Scan gap should be mm/point, so for 150DPI that's 1/5.9 or 25.4/150, ~0.17. But that doesn't seem right. Is the machine set to imperial measures? If so, does the scan gap represent 10ths of an inch?<br />
<br />
=== 8/9/2011 by asc ===<br />
Russ has confirmed alignment is as good as it is going to get.<br />
<br />
Mars/Martins problems are explained because of the power issues and that the granularity of engraving has been set high to aid with testing.<br />
<br />
As Mark details below, power is all over the place. Cutting 3mm mdf, 100% at speed 5 fails, charring and only partially cut. Whereas dropping speed power to 70%, 40% and even 30% succeeds with better cuts and no charring. Any ideas people?<br />
<br />
A fan has died and to prevent dust being blown on to the controller a plate has been installed over the fan.<br />
<br />
<br />
Current Fan: <br />
[[File:laser_cutter_fan.png|150px|thumb|center|[http://wiki.london.hackspace.org.uk/view/File:Laser_cutter_fan.png Click for Bigger]]]<br />
<br />
Suggested New fan: cpc.farnell.com/jsp/displayProduct.jsp?sku=MF6760094&CMP=aballbrochure<br />
<br />
===7/9/2011 note by [[User:mars|mars]] ===<br />
I tried a comparative cut of something I've done in the past.<br />
There is no longer any noticeable scaling error on the x or y axis, and the alignment now seems very stable (thanks mattv!).<br />
However there are other problems which I'm not sure how to fix.<br />
<br />
4mm perspex, 130x60mm cut and engrave.<br />
The first attempt I oriented the design along the top side of the bed (looking at the cutter).<br />
It managed to cut very well, but the engraving had serious problems.<br />
Also the whole job took much longer (22 as opposed to 12mins) than it has done in the past. Not sure why that is.<br />
I then tried orienting the other way: some way (<15cm) from the top side the cut no longer goes through.<br />
I also adjusted the bed height to get the surface closer to the top by one increment, hoping to improve the engraving. Didn't help, though it might have affected the cut efficiency.<br />
<br />
[[File:IMG_0253.jpg]]<br />
<br />
The picture shows from the top: a cut I did before the current problems; the first test with engraving striated vertically; and the last one which didn't cut all the way, and is strongly striated horizontally.<br />
<br />
===7/9/2011 by [[User:Ms7821|Mark]] ===<br />
Asc spent a load of time trying various cuts and it seems that even at speed 4, power 100, it won't cut all the way through MDF. Concerned that the same laser tube issue had happened again. <br />
<br />
The Z-axis endstop is broken, and someone had set the jog step up enormously, so '''take care with moving the base down'''.<br />
<br />
===30/8/2011 note by mattvenn ===<br />
<br />
following up from asc...<br />
<br />
1/- I have double checked the belts and tested for slippage, but didn't find anything.<br />
However, I believe that the cutting head has too much play. I can hear it chattering and I can wobble it around the (looking down on the cutter) z and y axis. The rollers aren't tight enough in my opinion, however this is no facility for adjustement. It's worth checking the rollers for wear, and then how about we build a replacement base for the cutting head with adjustable width?<br />
<br />
2/- I have done cuts through 4mm ply across the bed to check for a longer cut and this started out looking OK. I then noticed relatively large wobbles cutting straight lines. This could also be explained by the play noted above.<br />
<br />
By loosening the screw on the lower left roller (not the hex bolt) I was able to adjust the roller's position to nearly eliminate play in the cutting head. This has resulted in much better alignment.<br />
<br />
Scaling: I also noticed that there is now a scaling factor of 1% on the x axis and 2% on the y (with x being the long axis).<br />
<br />
I fixed this by setting pulse unit to 0.00635 for both X and Y.<br />
<br />
Stuff that needs to be fixed:<br />
<br />
* coolbot is not reliable, water temperature raised to 26 degrees while I was testing. Rebooting it makes it start cooling again. This was done twice today by me.<br />
<br />
* etching is really patchy, seems more so with bi directional, something to investigate.<br />
* alignment seems to skip by a few mm when it is cutting at high speeds (I've noticed at 200)<br />
* won't cut 4mm ply whatever the z axis (focus) setting in bottom right corner of bed.<br />
<br />
===24/8/2011 note by asc ===<br />
from [http://groups.google.com/group/london-hack-space/msg/74addd7ab84affcf mailing list]:<br />
<pre><nowiki><br />
Hello all,<br />
<br />
I have failed, I struggled last night to get it aligned. At times it<br />
would align nicely, but after a couple minutes it would get out of<br />
alignment.<br />
<br />
I am needing some help here. The problem I have is that for the next<br />
couple weeks I can't really make it in to the space (an hour or two<br />
here and there tops), after that I am then away until November.<br />
<br />
Things left needing to do:<br />
1) Alignment of X axis (and Y but that isn't too bad).<br />
2) After alignment a good long cut (30-45 minutes) needs to be made to<br />
make sure power isn't degrading over time.<br />
3) Cleaner added to water (not urgent).<br />
4) Russ also spotted that one of the fans by the controller needs<br />
replacing.<br />
<br />
Can someone with more knowledge on this help out? My time from now on<br />
cannot be relied upon, so we are needing a volunteer to get their<br />
hands dirty with this alignment fixing.<br />
<br />
So far:<br />
The X axis (from front to back of cutting bed) is a slightly off,<br />
enough to ruin cuts, I have tinkered and adjusted the tensioning on<br />
that belt to make it loose enough not to stress things, but not too<br />
tight to cause the stepper to slip. This tweaking was where I was<br />
getting temporary success in X axis alignment, but it just doesn't<br />
stay. Jasper and I inspected that belt to discern if there was some<br />
gunk or missing teeth but nothing was visible. Personally, I think<br />
the X axis belt is a bit tight - with judgement of tension being<br />
relative to the Y axis belts.<br />
<br />
The Y axis needs tweaking too but it isn't too bad. Russ created a<br />
nice template engraving (saved to desktop, as a .mol - so File->Open<br />
rather than File->Import), that works well on the A3 card in the stock<br />
pile. This was showing two problems, one being alignment and the<br />
other being accelleration and decelleration burn power issues (can be<br />
tweaked in software). This accelleration and decelleration issue is<br />
visible when you look at the end of the lines and see that it is<br />
cutting deeper, this is caused by the motors taking time to speed up<br />
and slow down and maintaining the same cutting power as when moving at<br />
full speed. Russ also made another template (unfortunately not saved)<br />
that nicely tests the Y axis accuracy. Essentially creating a box<br />
setting it to engrave, enabling bilateral cutting, and setting the<br />
step as 0.5mm. This engraves a box with many lines 0.5mm apart so any<br />
errors in X and Y axis are pronounced. It was doing "pairs" of cuts<br />
and at one instance doubled up - this indicates a minor Y axis<br />
alignment issue. The problem with adjusting the Y axis and checking<br />
the belts is that you need to dismantle the bed and mess around with<br />
the two Y axis belts. Last night I knew I did not have enough time to<br />
do it and reassemble it all, before knowing I am going to be<br />
essentially away until November. The Y axis belts were not inspected.<br />
<br />
Acceleration and Decelleration burning power needs tweaking too, but<br />
this can be done in software and addressed later.<br />
<br />
The previous problem of the cutter going off the bed and problem is<br />
explained as follows, though I would be cautious about adjusting<br />
tension willy nilly, it's a pain to get right.<br />
The tensioning of the X axis belt would have been either too tight or<br />
too loose. This causes slipping (the brrbrrbrrbrrbrr sound) and the<br />
controller to lose position of the laser cutter. So next time it cuts<br />
it tries to move the head off the bed. If this occurs turn off laser<br />
cutter, adjust X axis tensioning, then the arm and laser to be gently<br />
moved to the center of the bed. Power back on and the system will<br />
pull the arm back to the origin. You must power it off before gently<br />
moving the arm, this disengages the power to the steppers which then<br />
allows you to easily and gently move the arm. <br />
</nowiki></pre><br />
<br />
===22/8/2011 note by asc ===<br />
from [http://groups.google.com/group/london-hack-space/msg/a5981e61c7572830 mailing list]:<br />
<pre><nowiki><br />
Hello Matt and everyone.<br />
<br />
Executive Summary: It's nearly fixed, hopefully by Wednesday - time<br />
and life permitting.<br />
<br />
> I've never bothered with cleaning the support mesh other than removing<br />
> it and vacuuming the bits out.<br />
<br />
It needs it every so often. Every cut leaves gunk on the mesh (once<br />
clean I was suprised it how much) and it appears overtime to effect<br />
the material being cut with the little flare marks - which i suspect<br />
is the gunk being vaporised and marking the material. The test cuts<br />
after the clean have been nicer. Though I wouldn't recommend doing it<br />
often as it is a dirty job and the mesh is a right pig to get flat<br />
again after taking out.<br />
<br />
> I checked ?laser from robonaut and there's a message about air assist<br />
> causing power drop, is this current?<br />
<br />
Nope, I'll update shortly.<br />
<br />
> I was thinking of coming down to London either later this week or<br />
> early next week, any time be good for a laser fixing session?<br />
<br />
> Matt<br />
<br />
I think it is pretty much set, I cannot<br />
<br />
Work done yesterday under Sol's careful eye:<br />
1) Emptied the water.<br />
2) Cleaned out all the pipes (the green ones had nice slime in them) -<br />
needed a stick with a rag to give it a good rigorous scrub.<br />
3) Cleaned out as much as possible all the other water related stuff<br />
by rinsing in a mild detergent for ages.<br />
4) Fixed kink in laser tube water cooler input.<br />
5) Refilled system with new deionised water.<br />
6) Conducted test jobs.<br />
<br />
Result:<br />
1) Cuts are nice and sharp.<br />
2) Cooling system is clean<br />
3) Temperature looks all good.<br />
4) Cuts are nice across the entire bed.<br />
<br />
Things still left to do:<br />
1) Realign one of the axis, it is slipping. (Important)<br />
2) Do a long test so make sure laser cutting is not degrading over<br />
time. (Important)<br />
3) Put some type of restriction device to stop tubes having too much<br />
slack and being kinked. (Somewhat important).<br />
3) Add something to the water to keep cootie free. (Not important)<br />
4) Give the bed a chemical bath. (Not important)<br />
<br />
Observations:<br />
1) There was a kink in the input water cooling pipe once the back<br />
cover was closed, this essentially meant not enough nice cool water<br />
was not getting to the laser tube. This would have meant the tube<br />
would have heated up and degraded its life. This looks to have been<br />
caused by curious hands. The cooling system works, but if can't<br />
measure the temperature inside the laser tube, (the kink was just<br />
before entering the tube).<br />
2) One of the axis is slipping a bit, this will be fixed tonight,<br />
tomorrow or Wednesday night. Time permitting.<br />
3) Alignment of optics looks all good at the moment (thanks to Sol).<br />
4) Something needs adding to the water to stop growths - does anyone<br />
have any recommendations?<br />
5) More people need a good training in servicing, too much burden is<br />
being put on too few people to maintain and fix the cutter. We need<br />
to acknowledge that servicing and maintenance takes significant time<br />
and it is unreasonable to assume these responsibilities will be with<br />
someone else... it's a community, step up and help!<br />
<br />
Summary:<br />
Most of the things I and Sol have looked at and addressed these last<br />
few visits can be summarised:<br />
Negligence - resolved by a more training. Essentially people not<br />
understanding what the symptoms mean and their severity.<br />
Curiosity - There needs to be a boundary here. Dirty fingers, water<br />
contamination, and opening the back up and introducing a kink that<br />
broke the cooling system...<br />
Maintenance - people need to give it a clean or vacuum every so often,<br />
gunk forms on the mesh and debris. We aren't talking about a massive<br />
scrub down, a simple vacuum will help.<br />
<br />
To the person who regularly misunderstands my emails and irc comments,<br />
please refrain from snarky comments this time. If my english leads to<br />
any misunderstanding or confusion please email me off list. Or well<br />
volunteer yourself.<br />
<br />
-asc <br />
</nowiki></pre><br />
<br />
===12/8/2011 note by mattvenn ===<br />
<br />
from the IRC channel:<br />
<br />
* the power also has been degrading significantly quicker than expected.<br />
* the whole system needs a clean,<br />
* the air extraction cover whatsit needs looking at to determine why the laser head hits it, <br />
* alignment so bad, cable to laser pointer was getting zapped<br />
* and when cutting the arm goes completely off the table sometimes<br />
<br />
===9/8/2011 Note by [[User:Robert|Robert]]===<br />
<br />
Attempted diagnosis print across the whole bed area to confirm that the air assist nozzle is not being hit at any point.<br />
<br />
"Run box" caused the print head to leave the print area and make a grinding noise, test aborted.<br />
<br />
===3/8/2011 Note by [[User:Russ|Russss]]===<br />
There were reports that the beam was hitting the air assist nozzle. This results in reduced/no laser power and the X stage getting hot (which is bad).<br />
I painted the inside of the nozzle with black paint (with the assumption that it'll burn off if the beam hits it), but couldn't manage to make it happen. I didn't try everywhere round the bed though.<br />
<br />
Someone needs to see if it's working fine at all corners of the bed, and the X stage probably also needs tightening up a bit.<br />
<br />
===7/7/2011 Note by [[User:Solexious|Solexious]]===<br />
Took apart the lens gantry to give it a clean: http://www.flickr.com/photos/solexious/5916437652/in/photostream<br />
<br />
I also cleaned the bed, gave it a hoover and completed the "every 25 hours" tasks. Sadly this didn't fix the bi direction engrave errors, more investigation needs to be done. <br />
<br />
===26/6/2011 Note by [[User:Solexious|Solexious]]===<br />
<br />
Lasercutter is back up and happy, no interlock in place for flow.<br />
<br />
Coolbot is being logged to csv files in /home/solexious/coolbot on babbage, and the irc commands ?lasertemp and ?lasertube have been added.<br />
<br />
There still seems to be a issue with bi-directional engraving causing ghosting, seems something on the x axis (the one holding the lens to the moving rail) is loose.<br />
<br />
===20/6/2011 Note on behalf of [[User:Russ|Russss]]===<br />
<br />
21:36 <@solexious> So, none of the lasercutter users so far today have used the log, win... oh no, <br />
the opposite of win<br />
21:37 <@russss> solexious: and I did the intro for them too!<br />
21:37 <@russss> solexious: I admit that I didn't use the log, but then I did tell you directly :P<br />
21:38 <@russss> and 90% of the time I spent was with the laser not working...<br />
21:40 <@solexious> incoming meddling over vnc to remind them!<br />
21:40 <@russss> if you're meddling, could you tell them to make sure there's not too much water in <br />
the back of the machine?<br />
21:40 <@russss> if it is indeed in use<br />
21:40 <@solexious> okie dokie<br />
21:41 <@russss> solexious: oh, also have you noticed that one of the cooling fans is broken, and <br />
the other one sounds like it's on the way out?<br />
21:41 <@solexious> russss: no i had not, swear they were working the other day!<br />
21:41 <@russss> solexious: ok, interesting.<br />
21:41 <@russss> lots of dust in the electronics bay too<br />
21:42 <@russss> but I guess that's to be expected. Could do with a good hoover out<br />
21:42 <@solexious> gave it a quick can o air, but a hoover would be useful<br />
21:43 <@russss> I suspect with one fan down, dust from inside the cutting chamber could potentially <br />
re-enter the electronics bay<br />
21:43 <@solexious> bah, vnc fail, oni, could I ask you to poke them about the log plox<br />
21:43 <@russss> and that would be bad.<br />
<br />
<br />
===17/6/2011 Note by [[User:Solexious|Solexious]]===<br />
<br />
Beam aligned, but the cartage holding the lens is loose, this could be causing the ghosting when engraving with bi-direction on.<br />
<br />
Cool bot is mostly rebuilt and will be reinstalled on Sunday the 19th<br />
<br />
===16/6/2011 Note by [[User:Solexious|Solexious]]===<br />
<br />
Confirmed tube death, new tube working as expected.<br />
<br />
Still to do: Align, and rebuild cooling and also give the bed a good cleaning.<br />
<br />
===14/6/2011 Note by [[user:ciaran.mooney|Ciarán]] on behalf of [[User:Solexious|Solexious]]===<br />
<br />
The following is from this [http://groups.google.com/group/london-hack-space/browse_thread/thread/ec1d5ba37d6c49fc mailing list] thread.<br />
<br />
:After working on it today, and changing the optics, it is obvious now that it has suffered a tube :death. The lasercutter is currently in pieces and is not safe to use. The cutter will be out of :action till some time on Thursday when we have the missing bits to install the new tube. (whom ever :thought it was funny to pressurise the sealant gun till it ruptured owes us a new tube)<br />
<br />
:On the plus side we are taking this down time to add rfid to the laser cutter thanks to Mark (no :more loosing the keys \o/) and I am also switching out coolbot from an arduino to a nanode, this :will allow us to graph cooling temperature and also log laser usage hours (as sadly alot of users :don't bother any more, shame on them!)<br />
<br />
===3/6/2011 Note by [[User:Solexious|Solexious]]===<br />
Cleaned out the cooling pipes with a raise in through put on the main pump.<br />
<br />
The cutter needs some tlc and cleaning, but nothing show stopping.<br />
<br />
===4/2/2011 Note by [[User:Ms7821|Mark]]===<br />
Laser makes a nasty noise when moving diagonally. I assume it needs some tightening around one of the wheels.<br />
<br />
===6/3/2011 Note by [[user:ciaran.mooney|Ciarán]]===<br />
<br />
* Solexious performed some maintence on laser, [http://groups.google.com/group/london-hack-space/browse_thread/thread/9cfa40ff9c4047e1 details]<br />
<br />
=== 5/3/2011 Note by [[User:Ms7821|Mark]] ===<br />
The laser cutter PC power supply is a bit dodgy. Straight after turning the machine off, it refused to turn back on. No response to the keyboard or power switch.<br />
<br />
Replugging it multiple times had no effect, although after leaving it for a while (30 seconds) it booted automatically when plugged back in.<br />
<br />
<br />
===23/2/2011 Note by [[User:Tom Newsom|Tom Newsom]] ===<br />
* Lazor PC has trouble booting. If it gets stuck on the blue windows screen, hard reboot, hold F8 and choose last good configuration<br />
: Please don't do this. Last good configuration can screw up the registry in confusing ways. [[User:Ms7821|Ms7821]] 09:19, 23 February 2011 (UTC)<br />
:righto. Bloody windows!<br />
<br />
===10/2/2011 Note by [[User:Solexious|Solexious]] ===<br />
* The cutter has now been fully aligned<br />
<br />
===9/2/2011 Note by [[User:Solexious|Solexious]] ===<br />
'''Problems found:'''<br />
* Flow through the system was 1/4 the speed it should have been.<br />
* The flow interlock had gummed up with gloop and had failed not safe. The bung inside the mech had jammed causing the tube not to be shut off.<br />
* This would have caused limited cooling of the cutter, not detectable by coolbot. <br />
<br />
'''Solutions undertaken:'''<br />
* All pipes and interlocks were cleaned out and flushed. A dead bee was removed.<br />
* Further flow tests brought the flow back to 95% of the maximum flow possible for the pump, this is well within good bounds<br />
* The old tube was replaced, new tube hooked up and tested / aligned.<br />
* New deionised water was swapped out and flushed through the system.<br />
<br />
'''Further steps:'''<br />
* Obtain inline filter and a external filter for cleaning the tank.<br />
* Investigate adding a flow meter so the flow can be graphed and alert us if the interlock fails again.<br />
* Add outflow heat temperature sensors (hotbot)<br />
* Investigate methods of keeping the deionised water free from gloop<br />
<br />
'''Outcome:'''<br />
* The laser is now working again, and at the power level we had when we first got the cutter.<br />
* A short alignment session happened, but a longer one is needed to have the alignment spot on over the whole bed.<br />
<br />
===8/2/2011===<br />
<br />
*Actual case of bug being found in lasercutter cooling system<br />
<br />
===3/2/2011 Long discussion with lots of information on IRC, edited by [[User:Ms7821|Mark]]===<br />
Summary:<br />
* We're getting a new tube by Tuesday<br />
* Parts of it are dirty <br />
* Coolbot is being dealt with by [[User:Solexious|Solexious]], please bear with us<br />
* After replacing the tube, we may insist on Coolbot being used at all times<br />
* We need to look into the cleaning process seriously<br />
<br />
<pre><nowiki><br />
18:54:21 <@solexious> the cutter is only up for doing tiny jobs for training<br />
<br />
19:23:16 <@solexious> right, the lasercutter is out of order, please don't use it or the cooling system till we have the new tube<br />
<br />
20:44:57 <@solexious> lovelace_: the WHOLE system is out of order and not to be used, when the system is working the cooler is working too<br />
<br />
21:08:11 < lovelace_> basically, the whole machine is "filthy". every mirror, the inside, and the outside of the laser tube is covered in crap. we are documenting it.<br />
21:08:35 <@solexious> lovelace_: 2 of the mirrors are NEW<br />
21:08:44 < lovelace_> doens't make them clean<br />
21:08:51 <@russss> lovelace_: I assume that is because people have been running the laser while it's had an "out of order" sign on it.<br />
21:08:56 <@russss> and nobody's known to clean it.<br />
21:09:02 < lovelace_> yup<br />
<br />
22:11:11 <@solexious> could you tell him hpc can get us 2 tubes on monday/tuesday and its £195 +vat +del<br />
<br />
22:35:23 < kal> Sol: There is a hole on the water cooler that looks like it can be adjusted for regulate the amount of cooling. but it as a screw instead of nob<br />
22:35:27 < kal> knob*<br />
22:35:46 < kal> does that do anything/ have you tried to adjust it?<br />
22:36:21 < kal> for = to*<br />
222:38:07 < artag> kal, the cooler itself is a chiller for drinking water. It tries to get it's coil temp down to a few deg C. This is much too cold for the laser tube. Coolbot pumps water from the tank through the chiller when the tank is warm. The screw adjusts how hard the chiller tries to get down to low temps.<br />
22:40:04 < artag> since the tank is always fairly warm when coolbot needs to cool it, the chiller's thermostat will be on regardless of that screw setting<br />
<br />
22:45:40 <@solexious> kal: i ask for leaving coolbot as it is my project, rather than a general hackspace item<br />
<br />
00:20:28 < BytePilot> (sigh) well, cleaning its internals was a good plan anyway,<br />
00:20:46 < BytePilot> solexious: I had a good peek at tht tube, it's _full_ of grot<br />
00:20:58 <@solexious> BytePilot: yup<br />
00:21:31 < BytePilot> and that MDF is icky tarry stuff. Porr machine had ick in places where nobody should have ick.<br />
00:21:47 <@solexious> BytePilot: the lens and mirrors were cleaned a few days ago, with 2 of the mirrors being new<br />
00:22:16 < BytePilot> solexious: (wince) Ouch.<br />
00:22:31 <@solexious> and it hasnt been used much at all<br />
00:23:09 < BytePilot> solexious: the mirror on the back of the flying Y axis was _filthy_ utterly coated in gak, and I gleaned literal Lumps out of the wee hole in the mount for the vertical mirror<br />
00:23:57 < BytePilot> Might be worth saying "acrylinc/laser ply only" until we know what the trouble is.<br />
00:23:59 <@solexious> ah yes, that one still needed doing, one of the reasons it was out of order, sadly the sign had apparently been removed<br />
00:24:17 < BytePilot> I didn't open the power supply chamber, but I'm guessing that could do with a frisk over too<br />
00:24:42 < BytePilot> (HeadDesk)<br />
00:25:35 < BytePilot> also, we couldn't get the coolbot interface to work (ie suppy power to the subsidiary pump), is there something we needed to know ?<br />
00:26:04 <@solexious> BytePilot: no, its all just out of order at the moment<br />
00:26:35 < BytePilot> I'm also going to take screenshots of all the settings for the machine I have here, and compare them to those you have there. Just in case someone has fiddled with a number they shouldn't have.<br />
00:27:14 < BytePilot> There'll be some differences in bed size/shape but the power output settings should be similar.<br />
00:27:15 <@solexious> BytePilot: sounds good, ive also got a full copy of the software/settings backed up<br />
00:27:36 <@solexious> (from when all was working well)<br />
00:27:39 < BytePilot> Solexious: good plan. that 35%=100% thing gives me the fear. Something is _very_ odd there.<br />
00:28:06 <@solexious> BytePilot: have you had a tube fail on you?<br />
00:28:44 < BytePilot> Solexious: Nope, not even any significant power drift. and my cooling water came out of the tap (via a water filter)<br />
00:28:49 <@solexious> and 35%==75%<br />
00:29:35 <@solexious> ^ pedant<br />
00:29:44 < BytePilot> solexious: (grin) I'm going to stay awy from actually using the poor thing until it's behaving comprehensably again.<br />
00:30:37 <@solexious> cool, thanks for saving me from giving it another clean<br />
00:30:48 < BytePilot> solexious: we got the subsidiary pump working again (percussive maintainance) and it's now ganged into the switched socket with the main pump, since they only draw 500ma between them<br />
00:31:59 < BytePilot> Solexious: S'cool. I think people are taking advantage a little, making you clean the machine for them. I know that some parts need delicate handling, but they should at least vaccum out their dust<br />
00:32:01 <@solexious> oh christ, i hope the cutter is off till i get there to un do that<br />
00:32:15 < BytePilot> solexious: why ?<br />
00:32:27 < BytePilot> solexious: it works, and works well.<br />
00:32:31 <@solexious> it will chill the tube to 7 degrees<br />
00:33:00 < BytePilot> solexious: seven degrees ? How ?<br />
00:33:19 <@solexious> i was told that the coolbot had been left alone after numerous requests on irc<br />
00:33:20 < BytePilot> solexious: the chiller isn't even close to that powerful.<br />
00:33:51 <@solexious> BytePilot: it is, thats what happened before coolbot when the cooling system is manual<br />
00:34:03 <@solexious> s/is/was/<br />
00:34:15 < BytePilot> Was the chiller left on 1005 of the time ?<br />
00:34:19 < BytePilot> 1005 even ?<br />
00:34:29 < BytePilot> (bugger, pokes shift key)<br />
00:35:06 <@solexious> it was left on over night, came in to a box of 7 degrees water<br />
00:35:49 < BytePilot> The pump that drives the water to the chiller will only come on when the pump that drives teh water to the laser is also on<br />
00:35:50 <@solexious> its slow, but can chill quite well<br />
00:36:14 <@solexious> BytePilot: if the lasercutter is left off<br />
00:36:50 < BytePilot> (blink) you're not telling me someone left the entire rig on overnight ?<br />
00:37:11 < BytePilot> Ok, that kind of criminal idiocy we didn't think even possible.<br />
00:37:44 <@solexious> and as my requests for it to be turned off and left alone were ignored, im not expecting that to be followed now<br />
00:38:44 <@solexious> BytePilot: sadly i've come to realise you have to treat people as idiots in the space (alto most people arnt, just miss guided)<br />
<br />
00:40:16 < BytePilot> (thinx) Could sense the laser power and drive the chiller off that.<br />
00:40:24 < BytePilot> No that's no use.<br />
00:40:33 < BytePilot> still allows idiocy<br />
00:40:55 <@solexious> BytePilot: when the system isn't out of order it works well, its just the human element that breaks it :)<br />
00:41:12 < BytePilot> Solexious: Aye, and we're going to have to sort that out.<br />
00:41:40 < BytePilot> solexious: I honestly think that one of the best things we could do is move the laser out of the "dirty" area and into someplace less full of dust.<br />
00:42:31 < BytePilot> Solexious: The tube chamber at the back of the cutter was full of fine sawdust, I had to clean the outside of the tube before I could be sure that the inside really was gunky (it really is)<br />
00:43:32 <@solexious> its pretty much a sealed box, its more likely thats from cutting mdf than from the workshop<br />
00:44:02 <@solexious> and the sealed cooling system didnt get shite into it, just a shame it got busted in the move.<br />
00:44:19 < BytePilot> solexious: In which case, definitly less MDF, t<br />
00:44:31 <@creature> I've been cutting some mountboard recently. So if the dust was more like burnt paper than MDF, I could have been the source. Sorry, if so.<br />
00:44:46 < BytePilot> solexious: cooling system is a lot more sealed now. I'd go so far as to say it's very sealed<br />
00:45:12 <@solexious> BytePilot: I think just a forced log book so we can see at a glance how much use it getting and do full cleans accordingly<br />
00:45:23 < BytePilot> Creature: Unless your mountboard was light brown and you were cutting a lot of it I'd go with MDF<br />
00:45:45 < BytePilot> solexious: tricky to enforce.<br />
00:46:07 * solexious gets out his boom stick enforcer<br />
00:46:10 < BytePilot> solexious: (does thinking in head)<br />
00:46:33 < BytePilot> Also, I couldn't find any white lithum grease, or isopropanol in the space,<br />
00:46:56 <@solexious> but once we have the relaser software we can log it electrically<br />
00:47:10 <@solexious> was the iso ont next to the sink?<br />
00:47:11 < BytePilot> vodka works for clearing gunk, but some parts of the machine need a "proper" clean<br />
00:47:32 < BytePilot> solexious: not that I saw (shrug) possibly just me being blind<br />
00:47:44 <@solexious> heh, it hides from me alot too<br />
00:47:55 < BytePilot> solexious: so long as people aren't drinking it<br />
00:48:00 <@solexious> take it you found the cleaning kit<br />
00:48:20 < BytePilot> solexious: (grin) I didn't someone found it for me<br />
00:48:48 < BytePilot> solexious: Oh, also, remind me to bring a Z-axis ruler<br />
00:49:10 < BytePilot> solexious: excellent pre-cut suare that's just the right height to set the laser above your cutting surface.<br />
00:49:14 < BytePilot> (square even)<br />
00:49:15 <@solexious> how come? and is it different from a normal ruler?<br />
00:49:23 <@solexious> ah<br />
00:49:47 < BytePilot> No need for any level of cleverness, just stick the square underneath and if it just fits you got it right<br />
00:50:10 < BytePilot> (cut for the wee metal plate on the Y axis, not for the laser head itself)<br />
00:50:12 <@solexious> not sure i can picture that...<br />
00:50:25 <@solexious> oooh<br />
00:51:02 <@solexious> i just put a ruler on the bed and move the z till it touches the top of the z ruler<br />
00:51:30 < BytePilot> (grin) I don't trust my Z ruler<br />
00:51:43 < BytePilot> because I know for sure my bed isn't flat<br />
00:52:20 <@solexious> heh, after doing 0 tests on acrylic that seems to be the only accurate bit of the cutter<br />
00:52:20 < BytePilot> Nor is the one at the space either alas. I don't think it's sloped, but it is lumpy. damn "honeycomb"<br />
00:52:50 < BytePilot> (sigh) they are rather thrown together aren't they...<br />
00:53:11 <@solexious> i take it you saw the x and y rulers with 10" 11" 11" 12"<br />
00:53:28 <@solexious> still makes me chuckle<br />
00:56:11 < BytePilot> worried me rather, wasn't sure I'd seen it right.<br />
00:56:37 < BytePilot> Right, I'm off to kip.<br />
00:56:43 <@solexious> nn<br />
00:56:52 < BytePilot> I'll have a look at my own machine and see if I can see anything that looks suspect<br />
00:57:09 < BytePilot> because grotty as the tube is, I'm not sure that's going to be our magic bullet.<br />
00:57:24 < BytePilot> also, I think we might be able to flush the grot out.<br />
00:57:43 < BytePilot> and we definitely need fresh water in the colling system, if's got "bits" in it.<br />
01:02:46 <@solexious> BytePilot: by all means try, but I have given it a large flush<br />
</nowiki></pre><br />
<br />
===2/2/2011 Note by [[User:Naxxfish|Naxxfish]] ===<br />
* The lasercutter continues to be unhappy. <br />
** The water gets warm quite quickly, and takes ages to cool down. (stays around 25C after doing a couple of jobs)<br />
** Phish and Fish vacuumed the bed, reducing fires one bit of acrylic at a time!<br />
** Seems to cut and etch OK with the "adjusted" settings. <br />
<br />
===20/1/2011 Note by [[User:Solexious|Solexious]] ===<br />
* The lasercutter is unhappy, here are its symptoms:<br />
** Power varies during a job, regardless as to where on the bed it is cutting.<br />
** If the cutter is paused for ~1min and started again the resulting power output will be noticeably higher.<br />
** The exhaust water is flowing slowly, crap was removed from the flow, it now is back to full water power.<br />
* I am awaiting for a call from hpc laser<br />
<br />
===19/1/2011 Note by MattVenn ===<br />
Just to agree with Mark (below). I've spent about 4 hours over the last few days trying to get some settings that will cut 4mm laser ply. In the past, I have managed it in one cut! Now I can't do it with 8 passes!<br />
<br />
===19/1/2011 Note by [[User:Ms7821|Mark]]===<br />
* The laser cutter <b>will not cut</b> 4mm ply. It won't even scorch the bottom of the wood after 4 passes at speed 3 (and it's hard to tell whether it's cut or not without moving the target). I assume Z axis fiddling is required, but until a decent process is worked out, I've written a warning on the speed chart.<br />
* Enormous difficulty on one pass at speed 5 with 3mm light (balsa) wood. Didn't cut all the way through, and we were again unable to tell whether everything was cut. A large part of the job hardly scratched the wood at all. Recutting this area caused bad singeing in places, so I don't think it's a power issue, but some places/curves still didn't recut.<br />
If we can't work out how to fix the focus/mirrors, can I suggest contacting HPC Laser?<br />
<br />
===14/1/2011 Note By [[User:JasperWallace|JasperWallace]]=== <br />
* I dropped my hackspace keyring (one of the old ones from when we first had the cutter), and it shattered, it looks like stress was concentrated at the corners and it split from there - lesson learned: if you want cut things to last, specially if they are under any stress then round the corners!<br />
<br />
===11/1/2011===<br />
* Cooler was damaged in the move. SamLR reports 'we were moving the laser through to unit 23 the cooling unit fell over. We'd balanced coolbot on top of the water box so when it went over the whole thing got wet, beyond that I have no idea what's good to go and what isn't sorry'<br />
* To the best of my understanding, the cooler is not operating and the coolbot cannot immediately be reassembled. Note that the laser tube can be damaged by both high and low temperatures; the laser operation can quickly take the coolant above the maximum and the uncontrolled cooler can take it below the minimum. Coolbot is required to operate the cooler safely, and even when operating correctly there is no automatic cutout so it can still be abused. However, much care should also be taken if the laser is operated without cooling. It can get outside the safe limits in half an hour or so. ---[[User:Artag|Artag]] 21:04, 14 January 2011 (UTC)<br />
<br />
===11/1/2011 Operator Matt Venn===<br />
* Helped get the laser setup in the new room<br />
* Spent 30minutes fiddling with Z axis to get a decent and reliable cut on 4mm laser ply at a speed of 3.2.<br />
* Laser spent 40 minutes cutting my pattern, but 80% of cuts didn't make it through the ply.<br />
<br />
===9/1/2011 Operator Alex P===<br />
* Used lasercutter to prototype a project in 210gsm cardboard. Worked fine for this, using a speed of 30, a power of 40, and a corner power of 20.<br />
<br />
===3/1/2011===<br />
*Went to test if it was Z-datum/alignemnt problem previously (see below), now it seems that the Layz0r shuttle PC does not want to power up.<br />
*<s>Laser turns on, along with cooling equipment, and Monitor is in standby. Changed cable for the PC to check if the fuse was blown, didn't work.</s><br />
*Layzor PC seems to be turning on now, panic over.<br />
*Tested laser z-axis problem. Scroll job = 1mm. Moving the platform down a few millimetres makes it cut 3mm MDF now.<br />
<br />
===31/12/2010 Operator [[user:ciaran.mooney|Ciarán]]===<br />
*Tried to cut 4mm MDF using reccomended settings (speed 4, 100%). Laser cutter unable to cut through. Tried again with Speed=3, two passes and hit the "Z-Datum" button combo, but still laser unable to cut. Gave up.<br />
*After speaking to Sol about the problem it may been caused by my own inabilities to set the z-datum correctly.<br />
<br />
===30/12/2010 Operator [[User:Teabot|Elliot]]===<br />
* Tried to cut 4mm acrylic on my usual settings (speed 6, 100%). Cuts were uneven and often didn't break through. Retried with speed 4 and got a similar result. Could have been a Z-Axis issue as I'm still uncertain on how to align this - I just set the the top of my material to the '0' point on the rule. Previously I used to just press 'Z-Axis/Datum'.<br />
<br />
===15/12/2010 Operator [[User:Solexious|Solexious]]===<br />
* Installed the improved cooling system.<br />
* Flushed and replaced the deionised water.<br />
* Cutter working well, but most cuts now require -1 to speed, may need to check alignment, or a tube issue.<br />
<br />
===14/12/2010 Operator [[user:ciaran.mooney|Ciarán]]===<br />
* Started up laser, cut x3 small key rings from 4 mm MDF with Duncan. Not a problem worked perfectly.<br />
* Later noticed when Glenn was cutting a lot of MDF that water heating up, and there was no return water coming from chiller.<br />
* Topped up water in reservoir with distilled water to the line, so that Glenn could finish.<br />
* Russ turned up and had a look. Seems that the pump supplying water to chiller worked fine when plugged into it's own power. Plugging the chiller into separate power didn't seem to do anything.<br />
* Russ reckons there is a block.<br />
* Needs further looking at, probably best only to use the laser cutter for small jobs until it's sorted.<br />
<br />
===6/12/2010 Operator [[User:Solexious|Solexious]]===<br />
* Connected CoolBot to the cooling system, seems to be working as expected, documentation to follow.<br />
* Cleaned mirrors and lens due to high usage of mdf creating dirt etc.<br />
* Reports of slight reduction of cutting power in the bottom right of the bed, may be mirror alignment or bed levelling required. <br />
<br />
===4/12/2010 - 5/12/2010 Operator [[User:Teabot|Elliot]]===<br />
* Cut some [http://www.thingiverse.com/thing:5044 Arduino enclosures] with some 3mm Palglas (acrylic). The material cuts really well and provides great results.<br />
* Also tried to cut some 10mm Palglas. It did cut all the way through but I think that the thickness of the material impedes heat dissipation because there was a fair bit of melting. I may try a higher speed (was using 1) or multiple passes.<br />
<br />
===18/11/2010 Operator [[User:Teabot|Elliot]]===<br />
* Removed and replaced the lid to clean out some perspex offcuts that were hindering the operation of the hinge.<br />
* Cut some 3mm MDF with good results. The extractor and cooling system seem to be working well.<br />
<br />
===15/11/2010 Operator [[User:Solexious|Solexious]]===<br />
* The cooling system was added inline after the exaust water flow from the laser. This was found to cause the safety controls to kick in and disable the laser.<br />
* This was removed, and a separate pump added to the reservoir to keep the cooling of the water a separate system to the cutter pump.<br />
* The system cools the water as much as possible while on, so needs to be controlled manually. A micro-controlled system to show the temperature/water levels and regulate cooling is currently being made. <br />
<br />
===14/11/2010 Operator [[User:Solexious|Solexious]]===<br />
* Called into the space as the laser cutter software was crashing on compile. I found the machine settings were not those left by me the night before, and reset them. This fixed the issue. I have taken a back up of the now working setup, and also left a copy of this zip in the root of the C drive.<br />
<br />
===13/11/2010 Operator [[User:Solexious|Solexious]]===<br />
* Added a new extractor fan to the cutter, it is more powerful than the current fan, and any more upgrades will also have to increase the air flow into the cutter.<br />
* Due to [[User:Russ|Russ]]' fix for the x axis working so well I tested changing the acceleration and working speeds back to full. Meaning quicker job times. A complicated cut was preformed with 0% errors. Due to this the settings are now updated and uploaded to the machine.<br />
<br />
===23/10/2010 Operator [[User:Teabot|Elliot]]===<br />
* I cut some Palglas acrylic to make a kind of [[:File:Teabot-Cubauble.jpg|box]]. Palglas seems to be a reasonable, cheaper alternative to Perspex.<br />
<br />
===18/10/2010 Operator [[User:Russ|Russ]]===<br />
* I etched [http://www.flickr.com/photos/russss/5091352406/ my laptop] (the complex piece in my previous log entry). X/Y alignment was perfect, no evidence of backlash.<br />
* However, etching performance (actual delivered power) seems to be less in the top right-hand corner of the piece. This could either be due to beam alignment, or due to the bed/piece not being level.<br />
<br />
===16/10/2010 Operator [[User:Solexious|Solexious]]===<br />
* After [[User:Russ|Russ]] fixed a problem with a drive shaft, I attempted to align the laser.<br />
* The drive shaft slipped and came apart, I removed swarf from inside, and using hex bolts has given a tighter grip.<br />
* These problems solved I aligned the beam and the laser power is now even across the entire bed<br />
<br />
===15/10/2010 Operator [[User:Russ|Russ]]===<br />
* I tried to engrave a particularly complex piece. The laser software naturally decided to plot this in a weird way, cutting parts of each line in turn instead of the whole path at once.<br />
* This exposed a fairly severe backlash issue. Nothing joined up.<br />
* This appeared to be an issue with the drive shaft linking both belts of the X axis. The part doing the actual linking was extremely poorly machined.<br />
* I machined a new part on the lathe in 20mins, hastily installed it, and then had to leave for Hamburg leaving Billy to reassemble the laser cutter.<br />
<br />
===5/10/2010 Operator [[User:Russ|Russ]]===<br />
* Mirror was replaced with the new one from HPC.<br />
<br />
===30/09/2010 Operator [[User:Russ|Russ]]===<br />
[[File:Laser-mirror.jpg|300px|thumb|right|Exhibit 1: Melted Mirror]]<br />
* I was called to the space due to a report of the laser not working.<br />
* It turned out that the #2 mirror had melted. Likely because I left some residue on it while calibrating the beam (it's hard to see that mirror).<br />
* New mirror ordered from HPC (~£50)<br />
<br />
===23/09/2010 Operator [[User:Solexious|Solexious]]===<br />
* Cutter working well, no skipping of steps after Russ and I fixed an issue with the far right drive shaft.<br />
* The machine settings for speed of movement have been lowered to try to reduce drift during cutting.<br />
<br />
===19/09/2010 Operator [[User:Solexious|Solexious]]===<br />
* After a failed attempt due to a slipping belt (probably the cause of the issues on the 18th), a [http://www.thingiverse.com/derivative:3824 money box] was cut and assembled using the [http://www.thingiverse.com/thing:404 Box-o-Tron] as a base for the dxf file.<br />
* There is also a slight issue with focus of the laser, on 4mm acrylic settings of Speed 4 Power 100, at the side of the bed to the left it cuts perfectly, past 1/2 way to the right of the bed it fails to penetrate fully. A setting of Speed 5 Power 100 gives undesired blemishes from contact with the honey comb.<br />
<br />
===18/09/2010 Operator [[User:Meurig|Meurig]]===<br />
* George cut some 2mm acrylic to make an enclosure for a robot.<br />
* I created an [http://twitpic.com/2pt37b XKCD plaque in copper] using a two step (laser then chemical) process. These techniques will ultimatley be used to prototype PCBs. TBH, at this point the UV method is looking about as straightforward...<br />
* We etched Aden's HTC G1 with pedobear, using Cut power 20, corner power 10 and speed 100.<br />
* A Cthulu keyring was made on 2mm acrylic towards the end of the day. We did notice a few problems with this, namely at one point a hole came out non-circular, but also the etched layer didn't align correctly with the cut layer, out by about 2mm. No explanation for these at this point.<br />
* I tried making a PCB, but should have used single sided copper.<br />
<br />
===16/09/2010 Operator [[User:Solexious|Solexious]]===<br />
* Cut out the [http://www.flickr.com/photos/solexious/4999127940/ coin slot] peices for the 4 in a row donations box<br />
* Small bumps formed on the side of the acrylic closest to the bed where the honeycomb was touching, will try to correct with +1 to speed setting.<br />
* Extraction is improved and unwanted smell is reduced with sheets of acrylic that are full bed size.<br />
* No other problems detected.<br />
<br />
===15/09/2010 Operator [[User:Russ|Russ]]===<br />
* Cut some 1.5mm neoprene fairly successfully - needs high power and it's a bit smelly. (Settings in the book.)<br />
* Circle issue is fixed. It was a problem with the tension on the frontmost X drive belt.<br />
* Did some [http://www.flickr.com/photos/russss/4991794474/ awesome etching] onto black anodised aluminium - 450mm/sec, 90% power.<br />
* We also built [http://twitpic.com/2pt43e an acrylic box] designed in qcad.<br />
* Cut some hackspace keyrings, but noticed that the acrylic, when warm, warped upwards. Pause function worked as expected letting us tape down, but some ventilation sucking from below the bed would help a lot.<br />
<br />
===13/09/2010 Operator: [[user:samthetechie|samthetechie]]===<br />
Todo: Test CorelDraw X3 with 20mm circles on paper and compare to test using [https://dl.dropbox.com/u/1909920/2010-08-28%2020.13.47.jpg LaserCutter Software]<br />
<br />
===12/09/2010 Operator: [[user:samthetechie|samthetechie]]===<br />
<br />
*Setup CorelDraw X3 with LaserCutter Add-on Toolbar.<br />
*Cut [http://sphotos.ak.fbcdn.net/hphotos-ak-ash2/hs325.ash2/60543_160044944009089_100000107531845_534016_4177806_n.jpg Mic On Sign] 3mm Perspex.<br />
*Cut [http://twitpic.com/2o1jls MusicMetric Sign] 6mm MDF.</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Equipment/HPC_LS3060_Laser_Cutter/LogBook&diff=17657Equipment/HPC LS3060 Laser Cutter/LogBook2011-09-07T21:28:16Z<p>Mars: /* 7/9/2011 note by mars */</p>
<hr />
<div>__NOTOC__<br />
==Logbook==<br />
<br />
===7/9/2011 note by [[User:mars|mars]] ===<br />
I tried a comparative cut of something I've done in the past.<br />
There is no longer any noticeable scaling error on the x or y axis, and the alignment now seems very stable (thanks mattv!).<br />
However there are other problems which I'm not sure how to fix.<br />
<br />
4mm perspex, 130x60mm cut and engrave.<br />
The first attempt I oriented the design along the top side of the bed (looking at the cutter).<br />
It managed to cut very well, but the engraving had serious problems.<br />
Also the whole job took much longer (22 as opposed to 12mins) than it has done in the past. Not sure why that is.<br />
I then tried orienting the other way: some way (<15cm) from the top side the cut no longer goes through.<br />
I also adjusted the bed height to get the surface closer to the top by one increment, hoping to improve the engraving. Didn't help, though it might have affected the cut efficiency.<br />
<br />
[[File:IMG_0253.jpg]]<br />
<br />
The picture shows from the top: a cut I did before the current problems; the first test with engraving striated vertically; and the last one which didn't cut all the way, and is strongly striated horizontally.<br />
<br />
===7/9/2011 by [[User:Ms7821|Mark]] ===<br />
Asc spent a load of time trying various cuts and it seems that even at speed 4, power 100, it won't cut all the way through MDF. Concerned that the same laser tube issue had happened again. <br />
<br />
The Z-axis endstop is broken, and someone had set the jog step up enormously, so '''take care with moving the base down'''.<br />
<br />
===30/8/2011 note by mattvenn ===<br />
<br />
following up from asc...<br />
<br />
1/- I have double checked the belts and tested for slippage, but didn't find anything.<br />
However, I believe that the cutting head has too much play. I can hear it chattering and I can wobble it around the (looking down on the cutter) z and y axis. The rollers aren't tight enough in my opinion, however this is no facility for adjustement. It's worth checking the rollers for wear, and then how about we build a replacement base for the cutting head with adjustable width?<br />
<br />
2/- I have done cuts through 4mm ply across the bed to check for a longer cut and this started out looking OK. I then noticed relatively large wobbles cutting straight lines. This could also be explained by the play noted above.<br />
<br />
By loosening the screw on the lower left roller (not the hex bolt) I was able to adjust the roller's position to nearly eliminate play in the cutting head. This has resulted in much better alignment.<br />
<br />
Scaling: I also noticed that there is now a scaling factor of 1% on the x axis and 2% on the y (with x being the long axis).<br />
<br />
I fixed this by setting pulse unit to 0.00635 for both X and Y.<br />
<br />
Stuff that needs to be fixed:<br />
<br />
* coolbot is not reliable, water temperature raised to 26 degrees while I was testing. Rebooting it makes it start cooling again. This was done twice today by me.<br />
<br />
* etching is really patchy, seems more so with bi directional, something to investigate.<br />
* alignment seems to skip by a few mm when it is cutting at high speeds (I've noticed at 200)<br />
* won't cut 4mm ply whatever the z axis (focus) setting in bottom right corner of bed.<br />
<br />
===24/8/2011 note by asc ===<br />
from [http://groups.google.com/group/london-hack-space/msg/74addd7ab84affcf mailing list]:<br />
<pre><nowiki><br />
Hello all,<br />
<br />
I have failed, I struggled last night to get it aligned. At times it<br />
would align nicely, but after a couple minutes it would get out of<br />
alignment.<br />
<br />
I am needing some help here. The problem I have is that for the next<br />
couple weeks I can't really make it in to the space (an hour or two<br />
here and there tops), after that I am then away until November.<br />
<br />
Things left needing to do:<br />
1) Alignment of X axis (and Y but that isn't too bad).<br />
2) After alignment a good long cut (30-45 minutes) needs to be made to<br />
make sure power isn't degrading over time.<br />
3) Cleaner added to water (not urgent).<br />
4) Russ also spotted that one of the fans by the controller needs<br />
replacing.<br />
<br />
Can someone with more knowledge on this help out? My time from now on<br />
cannot be relied upon, so we are needing a volunteer to get their<br />
hands dirty with this alignment fixing.<br />
<br />
So far:<br />
The X axis (from front to back of cutting bed) is a slightly off,<br />
enough to ruin cuts, I have tinkered and adjusted the tensioning on<br />
that belt to make it loose enough not to stress things, but not too<br />
tight to cause the stepper to slip. This tweaking was where I was<br />
getting temporary success in X axis alignment, but it just doesn't<br />
stay. Jasper and I inspected that belt to discern if there was some<br />
gunk or missing teeth but nothing was visible. Personally, I think<br />
the X axis belt is a bit tight - with judgement of tension being<br />
relative to the Y axis belts.<br />
<br />
The Y axis needs tweaking too but it isn't too bad. Russ created a<br />
nice template engraving (saved to desktop, as a .mol - so File->Open<br />
rather than File->Import), that works well on the A3 card in the stock<br />
pile. This was showing two problems, one being alignment and the<br />
other being accelleration and decelleration burn power issues (can be<br />
tweaked in software). This accelleration and decelleration issue is<br />
visible when you look at the end of the lines and see that it is<br />
cutting deeper, this is caused by the motors taking time to speed up<br />
and slow down and maintaining the same cutting power as when moving at<br />
full speed. Russ also made another template (unfortunately not saved)<br />
that nicely tests the Y axis accuracy. Essentially creating a box<br />
setting it to engrave, enabling bilateral cutting, and setting the<br />
step as 0.5mm. This engraves a box with many lines 0.5mm apart so any<br />
errors in X and Y axis are pronounced. It was doing "pairs" of cuts<br />
and at one instance doubled up - this indicates a minor Y axis<br />
alignment issue. The problem with adjusting the Y axis and checking<br />
the belts is that you need to dismantle the bed and mess around with<br />
the two Y axis belts. Last night I knew I did not have enough time to<br />
do it and reassemble it all, before knowing I am going to be<br />
essentially away until November. The Y axis belts were not inspected.<br />
<br />
Acceleration and Decelleration burning power needs tweaking too, but<br />
this can be done in software and addressed later.<br />
<br />
The previous problem of the cutter going off the bed and problem is<br />
explained as follows, though I would be cautious about adjusting<br />
tension willy nilly, it's a pain to get right.<br />
The tensioning of the X axis belt would have been either too tight or<br />
too loose. This causes slipping (the brrbrrbrrbrrbrr sound) and the<br />
controller to lose position of the laser cutter. So next time it cuts<br />
it tries to move the head off the bed. If this occurs turn off laser<br />
cutter, adjust X axis tensioning, then the arm and laser to be gently<br />
moved to the center of the bed. Power back on and the system will<br />
pull the arm back to the origin. You must power it off before gently<br />
moving the arm, this disengages the power to the steppers which then<br />
allows you to easily and gently move the arm. <br />
</nowiki></pre><br />
<br />
===22/8/2011 note by asc ===<br />
from [http://groups.google.com/group/london-hack-space/msg/a5981e61c7572830 mailing list]:<br />
<pre><nowiki><br />
Hello Matt and everyone.<br />
<br />
Executive Summary: It's nearly fixed, hopefully by Wednesday - time<br />
and life permitting.<br />
<br />
> I've never bothered with cleaning the support mesh other than removing<br />
> it and vacuuming the bits out.<br />
<br />
It needs it every so often. Every cut leaves gunk on the mesh (once<br />
clean I was suprised it how much) and it appears overtime to effect<br />
the material being cut with the little flare marks - which i suspect<br />
is the gunk being vaporised and marking the material. The test cuts<br />
after the clean have been nicer. Though I wouldn't recommend doing it<br />
often as it is a dirty job and the mesh is a right pig to get flat<br />
again after taking out.<br />
<br />
> I checked ?laser from robonaut and there's a message about air assist<br />
> causing power drop, is this current?<br />
<br />
Nope, I'll update shortly.<br />
<br />
> I was thinking of coming down to London either later this week or<br />
> early next week, any time be good for a laser fixing session?<br />
<br />
> Matt<br />
<br />
I think it is pretty much set, I cannot<br />
<br />
Work done yesterday under Sol's careful eye:<br />
1) Emptied the water.<br />
2) Cleaned out all the pipes (the green ones had nice slime in them) -<br />
needed a stick with a rag to give it a good rigorous scrub.<br />
3) Cleaned out as much as possible all the other water related stuff<br />
by rinsing in a mild detergent for ages.<br />
4) Fixed kink in laser tube water cooler input.<br />
5) Refilled system with new deionised water.<br />
6) Conducted test jobs.<br />
<br />
Result:<br />
1) Cuts are nice and sharp.<br />
2) Cooling system is clean<br />
3) Temperature looks all good.<br />
4) Cuts are nice across the entire bed.<br />
<br />
Things still left to do:<br />
1) Realign one of the axis, it is slipping. (Important)<br />
2) Do a long test so make sure laser cutting is not degrading over<br />
time. (Important)<br />
3) Put some type of restriction device to stop tubes having too much<br />
slack and being kinked. (Somewhat important).<br />
3) Add something to the water to keep cootie free. (Not important)<br />
4) Give the bed a chemical bath. (Not important)<br />
<br />
Observations:<br />
1) There was a kink in the input water cooling pipe once the back<br />
cover was closed, this essentially meant not enough nice cool water<br />
was not getting to the laser tube. This would have meant the tube<br />
would have heated up and degraded its life. This looks to have been<br />
caused by curious hands. The cooling system works, but if can't<br />
measure the temperature inside the laser tube, (the kink was just<br />
before entering the tube).<br />
2) One of the axis is slipping a bit, this will be fixed tonight,<br />
tomorrow or Wednesday night. Time permitting.<br />
3) Alignment of optics looks all good at the moment (thanks to Sol).<br />
4) Something needs adding to the water to stop growths - does anyone<br />
have any recommendations?<br />
5) More people need a good training in servicing, too much burden is<br />
being put on too few people to maintain and fix the cutter. We need<br />
to acknowledge that servicing and maintenance takes significant time<br />
and it is unreasonable to assume these responsibilities will be with<br />
someone else... it's a community, step up and help!<br />
<br />
Summary:<br />
Most of the things I and Sol have looked at and addressed these last<br />
few visits can be summarised:<br />
Negligence - resolved by a more training. Essentially people not<br />
understanding what the symptoms mean and their severity.<br />
Curiosity - There needs to be a boundary here. Dirty fingers, water<br />
contamination, and opening the back up and introducing a kink that<br />
broke the cooling system...<br />
Maintenance - people need to give it a clean or vacuum every so often,<br />
gunk forms on the mesh and debris. We aren't talking about a massive<br />
scrub down, a simple vacuum will help.<br />
<br />
To the person who regularly misunderstands my emails and irc comments,<br />
please refrain from snarky comments this time. If my english leads to<br />
any misunderstanding or confusion please email me off list. Or well<br />
volunteer yourself.<br />
<br />
-asc <br />
</nowiki></pre><br />
<br />
===12/8/2011 note by mattvenn ===<br />
<br />
from the IRC channel:<br />
<br />
* the power also has been degrading significantly quicker than expected.<br />
* the whole system needs a clean,<br />
* the air extraction cover whatsit needs looking at to determine why the laser head hits it, <br />
* alignment so bad, cable to laser pointer was getting zapped<br />
* and when cutting the arm goes completely off the table sometimes<br />
<br />
===9/8/2011 Note by [[User:Robert|Robert]]===<br />
<br />
Attempted diagnosis print across the whole bed area to confirm that the air assist nozzle is not being hit at any point.<br />
<br />
"Run box" caused the print head to leave the print area and make a grinding noise, test aborted.<br />
<br />
===3/8/2011 Note by [[User:Russ|Russss]]===<br />
There were reports that the beam was hitting the air assist nozzle. This results in reduced/no laser power and the X stage getting hot (which is bad).<br />
I painted the inside of the nozzle with black paint (with the assumption that it'll burn off if the beam hits it), but couldn't manage to make it happen. I didn't try everywhere round the bed though.<br />
<br />
Someone needs to see if it's working fine at all corners of the bed, and the X stage probably also needs tightening up a bit.<br />
<br />
===7/7/2011 Note by [[User:Solexious|Solexious]]===<br />
Took apart the lens gantry to give it a clean: http://www.flickr.com/photos/solexious/5916437652/in/photostream<br />
<br />
I also cleaned the bed, gave it a hoover and completed the "every 25 hours" tasks. Sadly this didn't fix the bi direction engrave errors, more investigation needs to be done. <br />
<br />
===26/6/2011 Note by [[User:Solexious|Solexious]]===<br />
<br />
Lasercutter is back up and happy, no interlock in place for flow.<br />
<br />
Coolbot is being logged to csv files in /home/solexious/coolbot on babbage, and the irc commands ?lasertemp and ?lasertube have been added.<br />
<br />
There still seems to be a issue with bi-directional engraving causing ghosting, seems something on the x axis (the one holding the lens to the moving rail) is loose.<br />
<br />
===20/6/2011 Note on behalf of [[User:Russ|Russss]]===<br />
<br />
21:36 <@solexious> So, none of the lasercutter users so far today have used the log, win... oh no, <br />
the opposite of win<br />
21:37 <@russss> solexious: and I did the intro for them too!<br />
21:37 <@russss> solexious: I admit that I didn't use the log, but then I did tell you directly :P<br />
21:38 <@russss> and 90% of the time I spent was with the laser not working...<br />
21:40 <@solexious> incoming meddling over vnc to remind them!<br />
21:40 <@russss> if you're meddling, could you tell them to make sure there's not too much water in <br />
the back of the machine?<br />
21:40 <@russss> if it is indeed in use<br />
21:40 <@solexious> okie dokie<br />
21:41 <@russss> solexious: oh, also have you noticed that one of the cooling fans is broken, and <br />
the other one sounds like it's on the way out?<br />
21:41 <@solexious> russss: no i had not, swear they were working the other day!<br />
21:41 <@russss> solexious: ok, interesting.<br />
21:41 <@russss> lots of dust in the electronics bay too<br />
21:42 <@russss> but I guess that's to be expected. Could do with a good hoover out<br />
21:42 <@solexious> gave it a quick can o air, but a hoover would be useful<br />
21:43 <@russss> I suspect with one fan down, dust from inside the cutting chamber could potentially <br />
re-enter the electronics bay<br />
21:43 <@solexious> bah, vnc fail, oni, could I ask you to poke them about the log plox<br />
21:43 <@russss> and that would be bad.<br />
<br />
<br />
===17/6/2011 Note by [[User:Solexious|Solexious]]===<br />
<br />
Beam aligned, but the cartage holding the lens is loose, this could be causing the ghosting when engraving with bi-direction on.<br />
<br />
Cool bot is mostly rebuilt and will be reinstalled on Sunday the 19th<br />
<br />
===16/6/2011 Note by [[User:Solexious|Solexious]]===<br />
<br />
Confirmed tube death, new tube working as expected.<br />
<br />
Still to do: Align, and rebuild cooling and also give the bed a good cleaning.<br />
<br />
===14/6/2011 Note by [[user:ciaran.mooney|Ciarán]] on behalf of [[User:Solexious|Solexious]]===<br />
<br />
The following is from this [http://groups.google.com/group/london-hack-space/browse_thread/thread/ec1d5ba37d6c49fc mailing list] thread.<br />
<br />
:After working on it today, and changing the optics, it is obvious now that it has suffered a tube :death. The lasercutter is currently in pieces and is not safe to use. The cutter will be out of :action till some time on Thursday when we have the missing bits to install the new tube. (whom ever :thought it was funny to pressurise the sealant gun till it ruptured owes us a new tube)<br />
<br />
:On the plus side we are taking this down time to add rfid to the laser cutter thanks to Mark (no :more loosing the keys \o/) and I am also switching out coolbot from an arduino to a nanode, this :will allow us to graph cooling temperature and also log laser usage hours (as sadly alot of users :don't bother any more, shame on them!)<br />
<br />
===3/6/2011 Note by [[User:Solexious|Solexious]]===<br />
Cleaned out the cooling pipes with a raise in through put on the main pump.<br />
<br />
The cutter needs some tlc and cleaning, but nothing show stopping.<br />
<br />
===4/2/2011 Note by [[User:Ms7821|Mark]]===<br />
Laser makes a nasty noise when moving diagonally. I assume it needs some tightening around one of the wheels.<br />
<br />
===6/3/2011 Note by [[user:ciaran.mooney|Ciarán]]===<br />
<br />
* Solexious performed some maintence on laser, [http://groups.google.com/group/london-hack-space/browse_thread/thread/9cfa40ff9c4047e1 details]<br />
<br />
=== 5/3/2011 Note by [[User:Ms7821|Mark]] ===<br />
The laser cutter PC power supply is a bit dodgy. Straight after turning the machine off, it refused to turn back on. No response to the keyboard or power switch.<br />
<br />
Replugging it multiple times had no effect, although after leaving it for a while (30 seconds) it booted automatically when plugged back in.<br />
<br />
<br />
===23/2/2011 Note by [[User:Tom Newsom|Tom Newsom]] ===<br />
* Lazor PC has trouble booting. If it gets stuck on the blue windows screen, hard reboot, hold F8 and choose last good configuration<br />
: Please don't do this. Last good configuration can screw up the registry in confusing ways. [[User:Ms7821|Ms7821]] 09:19, 23 February 2011 (UTC)<br />
:righto. Bloody windows!<br />
<br />
===10/2/2011 Note by [[User:Solexious|Solexious]] ===<br />
* The cutter has now been fully aligned<br />
<br />
===9/2/2011 Note by [[User:Solexious|Solexious]] ===<br />
'''Problems found:'''<br />
* Flow through the system was 1/4 the speed it should have been.<br />
* The flow interlock had gummed up with gloop and had failed not safe. The bung inside the mech had jammed causing the tube not to be shut off.<br />
* This would have caused limited cooling of the cutter, not detectable by coolbot. <br />
<br />
'''Solutions undertaken:'''<br />
* All pipes and interlocks were cleaned out and flushed. A dead bee was removed.<br />
* Further flow tests brought the flow back to 95% of the maximum flow possible for the pump, this is well within good bounds<br />
* The old tube was replaced, new tube hooked up and tested / aligned.<br />
* New deionised water was swapped out and flushed through the system.<br />
<br />
'''Further steps:'''<br />
* Obtain inline filter and a external filter for cleaning the tank.<br />
* Investigate adding a flow meter so the flow can be graphed and alert us if the interlock fails again.<br />
* Add outflow heat temperature sensors (hotbot)<br />
* Investigate methods of keeping the deionised water free from gloop<br />
<br />
'''Outcome:'''<br />
* The laser is now working again, and at the power level we had when we first got the cutter.<br />
* A short alignment session happened, but a longer one is needed to have the alignment spot on over the whole bed.<br />
<br />
===8/2/2011===<br />
<br />
*Actual case of bug being found in lasercutter cooling system<br />
<br />
===3/2/2011 Long discussion with lots of information on IRC, edited by [[User:Ms7821|Mark]]===<br />
Summary:<br />
* We're getting a new tube by Tuesday<br />
* Parts of it are dirty <br />
* Coolbot is being dealt with by [[User:Solexious|Solexious]], please bear with us<br />
* After replacing the tube, we may insist on Coolbot being used at all times<br />
* We need to look into the cleaning process seriously<br />
<br />
<pre><nowiki><br />
18:54:21 <@solexious> the cutter is only up for doing tiny jobs for training<br />
<br />
19:23:16 <@solexious> right, the lasercutter is out of order, please don't use it or the cooling system till we have the new tube<br />
<br />
20:44:57 <@solexious> lovelace_: the WHOLE system is out of order and not to be used, when the system is working the cooler is working too<br />
<br />
21:08:11 < lovelace_> basically, the whole machine is "filthy". every mirror, the inside, and the outside of the laser tube is covered in crap. we are documenting it.<br />
21:08:35 <@solexious> lovelace_: 2 of the mirrors are NEW<br />
21:08:44 < lovelace_> doens't make them clean<br />
21:08:51 <@russss> lovelace_: I assume that is because people have been running the laser while it's had an "out of order" sign on it.<br />
21:08:56 <@russss> and nobody's known to clean it.<br />
21:09:02 < lovelace_> yup<br />
<br />
22:11:11 <@solexious> could you tell him hpc can get us 2 tubes on monday/tuesday and its £195 +vat +del<br />
<br />
22:35:23 < kal> Sol: There is a hole on the water cooler that looks like it can be adjusted for regulate the amount of cooling. but it as a screw instead of nob<br />
22:35:27 < kal> knob*<br />
22:35:46 < kal> does that do anything/ have you tried to adjust it?<br />
22:36:21 < kal> for = to*<br />
222:38:07 < artag> kal, the cooler itself is a chiller for drinking water. It tries to get it's coil temp down to a few deg C. This is much too cold for the laser tube. Coolbot pumps water from the tank through the chiller when the tank is warm. The screw adjusts how hard the chiller tries to get down to low temps.<br />
22:40:04 < artag> since the tank is always fairly warm when coolbot needs to cool it, the chiller's thermostat will be on regardless of that screw setting<br />
<br />
22:45:40 <@solexious> kal: i ask for leaving coolbot as it is my project, rather than a general hackspace item<br />
<br />
00:20:28 < BytePilot> (sigh) well, cleaning its internals was a good plan anyway,<br />
00:20:46 < BytePilot> solexious: I had a good peek at tht tube, it's _full_ of grot<br />
00:20:58 <@solexious> BytePilot: yup<br />
00:21:31 < BytePilot> and that MDF is icky tarry stuff. Porr machine had ick in places where nobody should have ick.<br />
00:21:47 <@solexious> BytePilot: the lens and mirrors were cleaned a few days ago, with 2 of the mirrors being new<br />
00:22:16 < BytePilot> solexious: (wince) Ouch.<br />
00:22:31 <@solexious> and it hasnt been used much at all<br />
00:23:09 < BytePilot> solexious: the mirror on the back of the flying Y axis was _filthy_ utterly coated in gak, and I gleaned literal Lumps out of the wee hole in the mount for the vertical mirror<br />
00:23:57 < BytePilot> Might be worth saying "acrylinc/laser ply only" until we know what the trouble is.<br />
00:23:59 <@solexious> ah yes, that one still needed doing, one of the reasons it was out of order, sadly the sign had apparently been removed<br />
00:24:17 < BytePilot> I didn't open the power supply chamber, but I'm guessing that could do with a frisk over too<br />
00:24:42 < BytePilot> (HeadDesk)<br />
00:25:35 < BytePilot> also, we couldn't get the coolbot interface to work (ie suppy power to the subsidiary pump), is there something we needed to know ?<br />
00:26:04 <@solexious> BytePilot: no, its all just out of order at the moment<br />
00:26:35 < BytePilot> I'm also going to take screenshots of all the settings for the machine I have here, and compare them to those you have there. Just in case someone has fiddled with a number they shouldn't have.<br />
00:27:14 < BytePilot> There'll be some differences in bed size/shape but the power output settings should be similar.<br />
00:27:15 <@solexious> BytePilot: sounds good, ive also got a full copy of the software/settings backed up<br />
00:27:36 <@solexious> (from when all was working well)<br />
00:27:39 < BytePilot> Solexious: good plan. that 35%=100% thing gives me the fear. Something is _very_ odd there.<br />
00:28:06 <@solexious> BytePilot: have you had a tube fail on you?<br />
00:28:44 < BytePilot> Solexious: Nope, not even any significant power drift. and my cooling water came out of the tap (via a water filter)<br />
00:28:49 <@solexious> and 35%==75%<br />
00:29:35 <@solexious> ^ pedant<br />
00:29:44 < BytePilot> solexious: (grin) I'm going to stay awy from actually using the poor thing until it's behaving comprehensably again.<br />
00:30:37 <@solexious> cool, thanks for saving me from giving it another clean<br />
00:30:48 < BytePilot> solexious: we got the subsidiary pump working again (percussive maintainance) and it's now ganged into the switched socket with the main pump, since they only draw 500ma between them<br />
00:31:59 < BytePilot> Solexious: S'cool. I think people are taking advantage a little, making you clean the machine for them. I know that some parts need delicate handling, but they should at least vaccum out their dust<br />
00:32:01 <@solexious> oh christ, i hope the cutter is off till i get there to un do that<br />
00:32:15 < BytePilot> solexious: why ?<br />
00:32:27 < BytePilot> solexious: it works, and works well.<br />
00:32:31 <@solexious> it will chill the tube to 7 degrees<br />
00:33:00 < BytePilot> solexious: seven degrees ? How ?<br />
00:33:19 <@solexious> i was told that the coolbot had been left alone after numerous requests on irc<br />
00:33:20 < BytePilot> solexious: the chiller isn't even close to that powerful.<br />
00:33:51 <@solexious> BytePilot: it is, thats what happened before coolbot when the cooling system is manual<br />
00:34:03 <@solexious> s/is/was/<br />
00:34:15 < BytePilot> Was the chiller left on 1005 of the time ?<br />
00:34:19 < BytePilot> 1005 even ?<br />
00:34:29 < BytePilot> (bugger, pokes shift key)<br />
00:35:06 <@solexious> it was left on over night, came in to a box of 7 degrees water<br />
00:35:49 < BytePilot> The pump that drives the water to the chiller will only come on when the pump that drives teh water to the laser is also on<br />
00:35:50 <@solexious> its slow, but can chill quite well<br />
00:36:14 <@solexious> BytePilot: if the lasercutter is left off<br />
00:36:50 < BytePilot> (blink) you're not telling me someone left the entire rig on overnight ?<br />
00:37:11 < BytePilot> Ok, that kind of criminal idiocy we didn't think even possible.<br />
00:37:44 <@solexious> and as my requests for it to be turned off and left alone were ignored, im not expecting that to be followed now<br />
00:38:44 <@solexious> BytePilot: sadly i've come to realise you have to treat people as idiots in the space (alto most people arnt, just miss guided)<br />
<br />
00:40:16 < BytePilot> (thinx) Could sense the laser power and drive the chiller off that.<br />
00:40:24 < BytePilot> No that's no use.<br />
00:40:33 < BytePilot> still allows idiocy<br />
00:40:55 <@solexious> BytePilot: when the system isn't out of order it works well, its just the human element that breaks it :)<br />
00:41:12 < BytePilot> Solexious: Aye, and we're going to have to sort that out.<br />
00:41:40 < BytePilot> solexious: I honestly think that one of the best things we could do is move the laser out of the "dirty" area and into someplace less full of dust.<br />
00:42:31 < BytePilot> Solexious: The tube chamber at the back of the cutter was full of fine sawdust, I had to clean the outside of the tube before I could be sure that the inside really was gunky (it really is)<br />
00:43:32 <@solexious> its pretty much a sealed box, its more likely thats from cutting mdf than from the workshop<br />
00:44:02 <@solexious> and the sealed cooling system didnt get shite into it, just a shame it got busted in the move.<br />
00:44:19 < BytePilot> solexious: In which case, definitly less MDF, t<br />
00:44:31 <@creature> I've been cutting some mountboard recently. So if the dust was more like burnt paper than MDF, I could have been the source. Sorry, if so.<br />
00:44:46 < BytePilot> solexious: cooling system is a lot more sealed now. I'd go so far as to say it's very sealed<br />
00:45:12 <@solexious> BytePilot: I think just a forced log book so we can see at a glance how much use it getting and do full cleans accordingly<br />
00:45:23 < BytePilot> Creature: Unless your mountboard was light brown and you were cutting a lot of it I'd go with MDF<br />
00:45:45 < BytePilot> solexious: tricky to enforce.<br />
00:46:07 * solexious gets out his boom stick enforcer<br />
00:46:10 < BytePilot> solexious: (does thinking in head)<br />
00:46:33 < BytePilot> Also, I couldn't find any white lithum grease, or isopropanol in the space,<br />
00:46:56 <@solexious> but once we have the relaser software we can log it electrically<br />
00:47:10 <@solexious> was the iso ont next to the sink?<br />
00:47:11 < BytePilot> vodka works for clearing gunk, but some parts of the machine need a "proper" clean<br />
00:47:32 < BytePilot> solexious: not that I saw (shrug) possibly just me being blind<br />
00:47:44 <@solexious> heh, it hides from me alot too<br />
00:47:55 < BytePilot> solexious: so long as people aren't drinking it<br />
00:48:00 <@solexious> take it you found the cleaning kit<br />
00:48:20 < BytePilot> solexious: (grin) I didn't someone found it for me<br />
00:48:48 < BytePilot> solexious: Oh, also, remind me to bring a Z-axis ruler<br />
00:49:10 < BytePilot> solexious: excellent pre-cut suare that's just the right height to set the laser above your cutting surface.<br />
00:49:14 < BytePilot> (square even)<br />
00:49:15 <@solexious> how come? and is it different from a normal ruler?<br />
00:49:23 <@solexious> ah<br />
00:49:47 < BytePilot> No need for any level of cleverness, just stick the square underneath and if it just fits you got it right<br />
00:50:10 < BytePilot> (cut for the wee metal plate on the Y axis, not for the laser head itself)<br />
00:50:12 <@solexious> not sure i can picture that...<br />
00:50:25 <@solexious> oooh<br />
00:51:02 <@solexious> i just put a ruler on the bed and move the z till it touches the top of the z ruler<br />
00:51:30 < BytePilot> (grin) I don't trust my Z ruler<br />
00:51:43 < BytePilot> because I know for sure my bed isn't flat<br />
00:52:20 <@solexious> heh, after doing 0 tests on acrylic that seems to be the only accurate bit of the cutter<br />
00:52:20 < BytePilot> Nor is the one at the space either alas. I don't think it's sloped, but it is lumpy. damn "honeycomb"<br />
00:52:50 < BytePilot> (sigh) they are rather thrown together aren't they...<br />
00:53:11 <@solexious> i take it you saw the x and y rulers with 10" 11" 11" 12"<br />
00:53:28 <@solexious> still makes me chuckle<br />
00:56:11 < BytePilot> worried me rather, wasn't sure I'd seen it right.<br />
00:56:37 < BytePilot> Right, I'm off to kip.<br />
00:56:43 <@solexious> nn<br />
00:56:52 < BytePilot> I'll have a look at my own machine and see if I can see anything that looks suspect<br />
00:57:09 < BytePilot> because grotty as the tube is, I'm not sure that's going to be our magic bullet.<br />
00:57:24 < BytePilot> also, I think we might be able to flush the grot out.<br />
00:57:43 < BytePilot> and we definitely need fresh water in the colling system, if's got "bits" in it.<br />
01:02:46 <@solexious> BytePilot: by all means try, but I have given it a large flush<br />
</nowiki></pre><br />
<br />
===2/2/2011 Note by [[User:Naxxfish|Naxxfish]] ===<br />
* The lasercutter continues to be unhappy. <br />
** The water gets warm quite quickly, and takes ages to cool down. (stays around 25C after doing a couple of jobs)<br />
** Phish and Fish vacuumed the bed, reducing fires one bit of acrylic at a time!<br />
** Seems to cut and etch OK with the "adjusted" settings. <br />
<br />
===20/1/2011 Note by [[User:Solexious|Solexious]] ===<br />
* The lasercutter is unhappy, here are its symptoms:<br />
** Power varies during a job, regardless as to where on the bed it is cutting.<br />
** If the cutter is paused for ~1min and started again the resulting power output will be noticeably higher.<br />
** The exhaust water is flowing slowly, crap was removed from the flow, it now is back to full water power.<br />
* I am awaiting for a call from hpc laser<br />
<br />
===19/1/2011 Note by MattVenn ===<br />
Just to agree with Mark (below). I've spent about 4 hours over the last few days trying to get some settings that will cut 4mm laser ply. In the past, I have managed it in one cut! Now I can't do it with 8 passes!<br />
<br />
===19/1/2011 Note by [[User:Ms7821|Mark]]===<br />
* The laser cutter <b>will not cut</b> 4mm ply. It won't even scorch the bottom of the wood after 4 passes at speed 3 (and it's hard to tell whether it's cut or not without moving the target). I assume Z axis fiddling is required, but until a decent process is worked out, I've written a warning on the speed chart.<br />
* Enormous difficulty on one pass at speed 5 with 3mm light (balsa) wood. Didn't cut all the way through, and we were again unable to tell whether everything was cut. A large part of the job hardly scratched the wood at all. Recutting this area caused bad singeing in places, so I don't think it's a power issue, but some places/curves still didn't recut.<br />
If we can't work out how to fix the focus/mirrors, can I suggest contacting HPC Laser?<br />
<br />
===14/1/2011 Note By [[User:JasperWallace|JasperWallace]]=== <br />
* I dropped my hackspace keyring (one of the old ones from when we first had the cutter), and it shattered, it looks like stress was concentrated at the corners and it split from there - lesson learned: if you want cut things to last, specially if they are under any stress then round the corners!<br />
<br />
===11/1/2011===<br />
* Cooler was damaged in the move. SamLR reports 'we were moving the laser through to unit 23 the cooling unit fell over. We'd balanced coolbot on top of the water box so when it went over the whole thing got wet, beyond that I have no idea what's good to go and what isn't sorry'<br />
* To the best of my understanding, the cooler is not operating and the coolbot cannot immediately be reassembled. Note that the laser tube can be damaged by both high and low temperatures; the laser operation can quickly take the coolant above the maximum and the uncontrolled cooler can take it below the minimum. Coolbot is required to operate the cooler safely, and even when operating correctly there is no automatic cutout so it can still be abused. However, much care should also be taken if the laser is operated without cooling. It can get outside the safe limits in half an hour or so. ---[[User:Artag|Artag]] 21:04, 14 January 2011 (UTC)<br />
<br />
===11/1/2011 Operator Matt Venn===<br />
* Helped get the laser setup in the new room<br />
* Spent 30minutes fiddling with Z axis to get a decent and reliable cut on 4mm laser ply at a speed of 3.2.<br />
* Laser spent 40 minutes cutting my pattern, but 80% of cuts didn't make it through the ply.<br />
<br />
===9/1/2011 Operator Alex P===<br />
* Used lasercutter to prototype a project in 210gsm cardboard. Worked fine for this, using a speed of 30, a power of 40, and a corner power of 20.<br />
<br />
===3/1/2011===<br />
*Went to test if it was Z-datum/alignemnt problem previously (see below), now it seems that the Layz0r shuttle PC does not want to power up.<br />
*<s>Laser turns on, along with cooling equipment, and Monitor is in standby. Changed cable for the PC to check if the fuse was blown, didn't work.</s><br />
*Layzor PC seems to be turning on now, panic over.<br />
*Tested laser z-axis problem. Scroll job = 1mm. Moving the platform down a few millimetres makes it cut 3mm MDF now.<br />
<br />
===31/12/2010 Operator [[user:ciaran.mooney|Ciarán]]===<br />
*Tried to cut 4mm MDF using reccomended settings (speed 4, 100%). Laser cutter unable to cut through. Tried again with Speed=3, two passes and hit the "Z-Datum" button combo, but still laser unable to cut. Gave up.<br />
*After speaking to Sol about the problem it may been caused by my own inabilities to set the z-datum correctly.<br />
<br />
===30/12/2010 Operator [[User:Teabot|Elliot]]===<br />
* Tried to cut 4mm acrylic on my usual settings (speed 6, 100%). Cuts were uneven and often didn't break through. Retried with speed 4 and got a similar result. Could have been a Z-Axis issue as I'm still uncertain on how to align this - I just set the the top of my material to the '0' point on the rule. Previously I used to just press 'Z-Axis/Datum'.<br />
<br />
===15/12/2010 Operator [[User:Solexious|Solexious]]===<br />
* Installed the improved cooling system.<br />
* Flushed and replaced the deionised water.<br />
* Cutter working well, but most cuts now require -1 to speed, may need to check alignment, or a tube issue.<br />
<br />
===14/12/2010 Operator [[user:ciaran.mooney|Ciarán]]===<br />
* Started up laser, cut x3 small key rings from 4 mm MDF with Duncan. Not a problem worked perfectly.<br />
* Later noticed when Glenn was cutting a lot of MDF that water heating up, and there was no return water coming from chiller.<br />
* Topped up water in reservoir with distilled water to the line, so that Glenn could finish.<br />
* Russ turned up and had a look. Seems that the pump supplying water to chiller worked fine when plugged into it's own power. Plugging the chiller into separate power didn't seem to do anything.<br />
* Russ reckons there is a block.<br />
* Needs further looking at, probably best only to use the laser cutter for small jobs until it's sorted.<br />
<br />
===6/12/2010 Operator [[User:Solexious|Solexious]]===<br />
* Connected CoolBot to the cooling system, seems to be working as expected, documentation to follow.<br />
* Cleaned mirrors and lens due to high usage of mdf creating dirt etc.<br />
* Reports of slight reduction of cutting power in the bottom right of the bed, may be mirror alignment or bed levelling required. <br />
<br />
===4/12/2010 - 5/12/2010 Operator [[User:Teabot|Elliot]]===<br />
* Cut some [http://www.thingiverse.com/thing:5044 Arduino enclosures] with some 3mm Palglas (acrylic). The material cuts really well and provides great results.<br />
* Also tried to cut some 10mm Palglas. It did cut all the way through but I think that the thickness of the material impedes heat dissipation because there was a fair bit of melting. I may try a higher speed (was using 1) or multiple passes.<br />
<br />
===18/11/2010 Operator [[User:Teabot|Elliot]]===<br />
* Removed and replaced the lid to clean out some perspex offcuts that were hindering the operation of the hinge.<br />
* Cut some 3mm MDF with good results. The extractor and cooling system seem to be working well.<br />
<br />
===15/11/2010 Operator [[User:Solexious|Solexious]]===<br />
* The cooling system was added inline after the exaust water flow from the laser. This was found to cause the safety controls to kick in and disable the laser.<br />
* This was removed, and a separate pump added to the reservoir to keep the cooling of the water a separate system to the cutter pump.<br />
* The system cools the water as much as possible while on, so needs to be controlled manually. A micro-controlled system to show the temperature/water levels and regulate cooling is currently being made. <br />
<br />
===14/11/2010 Operator [[User:Solexious|Solexious]]===<br />
* Called into the space as the laser cutter software was crashing on compile. I found the machine settings were not those left by me the night before, and reset them. This fixed the issue. I have taken a back up of the now working setup, and also left a copy of this zip in the root of the C drive.<br />
<br />
===13/11/2010 Operator [[User:Solexious|Solexious]]===<br />
* Added a new extractor fan to the cutter, it is more powerful than the current fan, and any more upgrades will also have to increase the air flow into the cutter.<br />
* Due to [[User:Russ|Russ]]' fix for the x axis working so well I tested changing the acceleration and working speeds back to full. Meaning quicker job times. A complicated cut was preformed with 0% errors. Due to this the settings are now updated and uploaded to the machine.<br />
<br />
===23/10/2010 Operator [[User:Teabot|Elliot]]===<br />
* I cut some Palglas acrylic to make a kind of [[:File:Teabot-Cubauble.jpg|box]]. Palglas seems to be a reasonable, cheaper alternative to Perspex.<br />
<br />
===18/10/2010 Operator [[User:Russ|Russ]]===<br />
* I etched [http://www.flickr.com/photos/russss/5091352406/ my laptop] (the complex piece in my previous log entry). X/Y alignment was perfect, no evidence of backlash.<br />
* However, etching performance (actual delivered power) seems to be less in the top right-hand corner of the piece. This could either be due to beam alignment, or due to the bed/piece not being level.<br />
<br />
===16/10/2010 Operator [[User:Solexious|Solexious]]===<br />
* After [[User:Russ|Russ]] fixed a problem with a drive shaft, I attempted to align the laser.<br />
* The drive shaft slipped and came apart, I removed swarf from inside, and using hex bolts has given a tighter grip.<br />
* These problems solved I aligned the beam and the laser power is now even across the entire bed<br />
<br />
===15/10/2010 Operator [[User:Russ|Russ]]===<br />
* I tried to engrave a particularly complex piece. The laser software naturally decided to plot this in a weird way, cutting parts of each line in turn instead of the whole path at once.<br />
* This exposed a fairly severe backlash issue. Nothing joined up.<br />
* This appeared to be an issue with the drive shaft linking both belts of the X axis. The part doing the actual linking was extremely poorly machined.<br />
* I machined a new part on the lathe in 20mins, hastily installed it, and then had to leave for Hamburg leaving Billy to reassemble the laser cutter.<br />
<br />
===5/10/2010 Operator [[User:Russ|Russ]]===<br />
* Mirror was replaced with the new one from HPC.<br />
<br />
===30/09/2010 Operator [[User:Russ|Russ]]===<br />
[[File:Laser-mirror.jpg|300px|thumb|right|Exhibit 1: Melted Mirror]]<br />
* I was called to the space due to a report of the laser not working.<br />
* It turned out that the #2 mirror had melted. Likely because I left some residue on it while calibrating the beam (it's hard to see that mirror).<br />
* New mirror ordered from HPC (~£50)<br />
<br />
===23/09/2010 Operator [[User:Solexious|Solexious]]===<br />
* Cutter working well, no skipping of steps after Russ and I fixed an issue with the far right drive shaft.<br />
* The machine settings for speed of movement have been lowered to try to reduce drift during cutting.<br />
<br />
===19/09/2010 Operator [[User:Solexious|Solexious]]===<br />
* After a failed attempt due to a slipping belt (probably the cause of the issues on the 18th), a [http://www.thingiverse.com/derivative:3824 money box] was cut and assembled using the [http://www.thingiverse.com/thing:404 Box-o-Tron] as a base for the dxf file.<br />
* There is also a slight issue with focus of the laser, on 4mm acrylic settings of Speed 4 Power 100, at the side of the bed to the left it cuts perfectly, past 1/2 way to the right of the bed it fails to penetrate fully. A setting of Speed 5 Power 100 gives undesired blemishes from contact with the honey comb.<br />
<br />
===18/09/2010 Operator [[User:Meurig|Meurig]]===<br />
* George cut some 2mm acrylic to make an enclosure for a robot.<br />
* I created an [http://twitpic.com/2pt37b XKCD plaque in copper] using a two step (laser then chemical) process. These techniques will ultimatley be used to prototype PCBs. TBH, at this point the UV method is looking about as straightforward...<br />
* We etched Aden's HTC G1 with pedobear, using Cut power 20, corner power 10 and speed 100.<br />
* A Cthulu keyring was made on 2mm acrylic towards the end of the day. We did notice a few problems with this, namely at one point a hole came out non-circular, but also the etched layer didn't align correctly with the cut layer, out by about 2mm. No explanation for these at this point.<br />
* I tried making a PCB, but should have used single sided copper.<br />
<br />
===16/09/2010 Operator [[User:Solexious|Solexious]]===<br />
* Cut out the [http://www.flickr.com/photos/solexious/4999127940/ coin slot] peices for the 4 in a row donations box<br />
* Small bumps formed on the side of the acrylic closest to the bed where the honeycomb was touching, will try to correct with +1 to speed setting.<br />
* Extraction is improved and unwanted smell is reduced with sheets of acrylic that are full bed size.<br />
* No other problems detected.<br />
<br />
===15/09/2010 Operator [[User:Russ|Russ]]===<br />
* Cut some 1.5mm neoprene fairly successfully - needs high power and it's a bit smelly. (Settings in the book.)<br />
* Circle issue is fixed. It was a problem with the tension on the frontmost X drive belt.<br />
* Did some [http://www.flickr.com/photos/russss/4991794474/ awesome etching] onto black anodised aluminium - 450mm/sec, 90% power.<br />
* We also built [http://twitpic.com/2pt43e an acrylic box] designed in qcad.<br />
* Cut some hackspace keyrings, but noticed that the acrylic, when warm, warped upwards. Pause function worked as expected letting us tape down, but some ventilation sucking from below the bed would help a lot.<br />
<br />
===13/09/2010 Operator: [[user:samthetechie|samthetechie]]===<br />
Todo: Test CorelDraw X3 with 20mm circles on paper and compare to test using [https://dl.dropbox.com/u/1909920/2010-08-28%2020.13.47.jpg LaserCutter Software]<br />
<br />
===12/09/2010 Operator: [[user:samthetechie|samthetechie]]===<br />
<br />
*Setup CorelDraw X3 with LaserCutter Add-on Toolbar.<br />
*Cut [http://sphotos.ak.fbcdn.net/hphotos-ak-ash2/hs325.ash2/60543_160044944009089_100000107531845_534016_4177806_n.jpg Mic On Sign] 3mm Perspex.<br />
*Cut [http://twitpic.com/2o1jls MusicMetric Sign] 6mm MDF.</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=File:IMG_0253.jpg&diff=17656File:IMG 0253.jpg2011-09-07T21:26:39Z<p>Mars: Comparative laser cuts: before / horizontal test / vertical test</p>
<hr />
<div>Comparative laser cuts: before / horizontal test / vertical test</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Equipment/HPC_LS3060_Laser_Cutter/LogBook&diff=17655Equipment/HPC LS3060 Laser Cutter/LogBook2011-09-07T21:25:45Z<p>Mars: /* Logbook */</p>
<hr />
<div>__NOTOC__<br />
==Logbook==<br />
<br />
===7/9/2011 note by [[User:mars|mars]] ===<br />
I tried a comparative cut of something I've done in the past.<br />
There is no longer any noticeable scaling error on the x or y axis, and the alignment now seems very stable (thanks mattv!).<br />
However there are other problems which I'm not sure how to fix.<br />
<br />
4mm perspex, 130x60mm cut and engrave.<br />
The first attempt I oriented the design along the top side of the bed (looking at the cutter).<br />
It managed to cut very well, but the engraving had serious problems.<br />
Also the whole job took much longer (22 as opposed to 12mins) than it has done in the past. Not sure why that is.<br />
I then tried orienting the other way: some way (<15cm) from the top side the cut no longer goes through.<br />
I also adjusted the bed height to get the surface closer to the top by one increment, hoping to improve the engraving.<br />
<br />
[[File:IMG_0253.jpg]]<br />
The picture shows from the top: a cut I did before the current problems; the first test with engraving striated vertically; and the last one which didn't cut all the way, and is strongly striated horizontally.<br />
<br />
===7/9/2011 by [[User:Ms7821|Mark]] ===<br />
Asc spent a load of time trying various cuts and it seems that even at speed 4, power 100, it won't cut all the way through MDF. Concerned that the same laser tube issue had happened again. <br />
<br />
The Z-axis endstop is broken, and someone had set the jog step up enormously, so '''take care with moving the base down'''.<br />
<br />
===30/8/2011 note by mattvenn ===<br />
<br />
following up from asc...<br />
<br />
1/- I have double checked the belts and tested for slippage, but didn't find anything.<br />
However, I believe that the cutting head has too much play. I can hear it chattering and I can wobble it around the (looking down on the cutter) z and y axis. The rollers aren't tight enough in my opinion, however this is no facility for adjustement. It's worth checking the rollers for wear, and then how about we build a replacement base for the cutting head with adjustable width?<br />
<br />
2/- I have done cuts through 4mm ply across the bed to check for a longer cut and this started out looking OK. I then noticed relatively large wobbles cutting straight lines. This could also be explained by the play noted above.<br />
<br />
By loosening the screw on the lower left roller (not the hex bolt) I was able to adjust the roller's position to nearly eliminate play in the cutting head. This has resulted in much better alignment.<br />
<br />
Scaling: I also noticed that there is now a scaling factor of 1% on the x axis and 2% on the y (with x being the long axis).<br />
<br />
I fixed this by setting pulse unit to 0.00635 for both X and Y.<br />
<br />
Stuff that needs to be fixed:<br />
<br />
* coolbot is not reliable, water temperature raised to 26 degrees while I was testing. Rebooting it makes it start cooling again. This was done twice today by me.<br />
<br />
* etching is really patchy, seems more so with bi directional, something to investigate.<br />
* alignment seems to skip by a few mm when it is cutting at high speeds (I've noticed at 200)<br />
* won't cut 4mm ply whatever the z axis (focus) setting in bottom right corner of bed.<br />
<br />
===24/8/2011 note by asc ===<br />
from [http://groups.google.com/group/london-hack-space/msg/74addd7ab84affcf mailing list]:<br />
<pre><nowiki><br />
Hello all,<br />
<br />
I have failed, I struggled last night to get it aligned. At times it<br />
would align nicely, but after a couple minutes it would get out of<br />
alignment.<br />
<br />
I am needing some help here. The problem I have is that for the next<br />
couple weeks I can't really make it in to the space (an hour or two<br />
here and there tops), after that I am then away until November.<br />
<br />
Things left needing to do:<br />
1) Alignment of X axis (and Y but that isn't too bad).<br />
2) After alignment a good long cut (30-45 minutes) needs to be made to<br />
make sure power isn't degrading over time.<br />
3) Cleaner added to water (not urgent).<br />
4) Russ also spotted that one of the fans by the controller needs<br />
replacing.<br />
<br />
Can someone with more knowledge on this help out? My time from now on<br />
cannot be relied upon, so we are needing a volunteer to get their<br />
hands dirty with this alignment fixing.<br />
<br />
So far:<br />
The X axis (from front to back of cutting bed) is a slightly off,<br />
enough to ruin cuts, I have tinkered and adjusted the tensioning on<br />
that belt to make it loose enough not to stress things, but not too<br />
tight to cause the stepper to slip. This tweaking was where I was<br />
getting temporary success in X axis alignment, but it just doesn't<br />
stay. Jasper and I inspected that belt to discern if there was some<br />
gunk or missing teeth but nothing was visible. Personally, I think<br />
the X axis belt is a bit tight - with judgement of tension being<br />
relative to the Y axis belts.<br />
<br />
The Y axis needs tweaking too but it isn't too bad. Russ created a<br />
nice template engraving (saved to desktop, as a .mol - so File->Open<br />
rather than File->Import), that works well on the A3 card in the stock<br />
pile. This was showing two problems, one being alignment and the<br />
other being accelleration and decelleration burn power issues (can be<br />
tweaked in software). This accelleration and decelleration issue is<br />
visible when you look at the end of the lines and see that it is<br />
cutting deeper, this is caused by the motors taking time to speed up<br />
and slow down and maintaining the same cutting power as when moving at<br />
full speed. Russ also made another template (unfortunately not saved)<br />
that nicely tests the Y axis accuracy. Essentially creating a box<br />
setting it to engrave, enabling bilateral cutting, and setting the<br />
step as 0.5mm. This engraves a box with many lines 0.5mm apart so any<br />
errors in X and Y axis are pronounced. It was doing "pairs" of cuts<br />
and at one instance doubled up - this indicates a minor Y axis<br />
alignment issue. The problem with adjusting the Y axis and checking<br />
the belts is that you need to dismantle the bed and mess around with<br />
the two Y axis belts. Last night I knew I did not have enough time to<br />
do it and reassemble it all, before knowing I am going to be<br />
essentially away until November. The Y axis belts were not inspected.<br />
<br />
Acceleration and Decelleration burning power needs tweaking too, but<br />
this can be done in software and addressed later.<br />
<br />
The previous problem of the cutter going off the bed and problem is<br />
explained as follows, though I would be cautious about adjusting<br />
tension willy nilly, it's a pain to get right.<br />
The tensioning of the X axis belt would have been either too tight or<br />
too loose. This causes slipping (the brrbrrbrrbrrbrr sound) and the<br />
controller to lose position of the laser cutter. So next time it cuts<br />
it tries to move the head off the bed. If this occurs turn off laser<br />
cutter, adjust X axis tensioning, then the arm and laser to be gently<br />
moved to the center of the bed. Power back on and the system will<br />
pull the arm back to the origin. You must power it off before gently<br />
moving the arm, this disengages the power to the steppers which then<br />
allows you to easily and gently move the arm. <br />
</nowiki></pre><br />
<br />
===22/8/2011 note by asc ===<br />
from [http://groups.google.com/group/london-hack-space/msg/a5981e61c7572830 mailing list]:<br />
<pre><nowiki><br />
Hello Matt and everyone.<br />
<br />
Executive Summary: It's nearly fixed, hopefully by Wednesday - time<br />
and life permitting.<br />
<br />
> I've never bothered with cleaning the support mesh other than removing<br />
> it and vacuuming the bits out.<br />
<br />
It needs it every so often. Every cut leaves gunk on the mesh (once<br />
clean I was suprised it how much) and it appears overtime to effect<br />
the material being cut with the little flare marks - which i suspect<br />
is the gunk being vaporised and marking the material. The test cuts<br />
after the clean have been nicer. Though I wouldn't recommend doing it<br />
often as it is a dirty job and the mesh is a right pig to get flat<br />
again after taking out.<br />
<br />
> I checked ?laser from robonaut and there's a message about air assist<br />
> causing power drop, is this current?<br />
<br />
Nope, I'll update shortly.<br />
<br />
> I was thinking of coming down to London either later this week or<br />
> early next week, any time be good for a laser fixing session?<br />
<br />
> Matt<br />
<br />
I think it is pretty much set, I cannot<br />
<br />
Work done yesterday under Sol's careful eye:<br />
1) Emptied the water.<br />
2) Cleaned out all the pipes (the green ones had nice slime in them) -<br />
needed a stick with a rag to give it a good rigorous scrub.<br />
3) Cleaned out as much as possible all the other water related stuff<br />
by rinsing in a mild detergent for ages.<br />
4) Fixed kink in laser tube water cooler input.<br />
5) Refilled system with new deionised water.<br />
6) Conducted test jobs.<br />
<br />
Result:<br />
1) Cuts are nice and sharp.<br />
2) Cooling system is clean<br />
3) Temperature looks all good.<br />
4) Cuts are nice across the entire bed.<br />
<br />
Things still left to do:<br />
1) Realign one of the axis, it is slipping. (Important)<br />
2) Do a long test so make sure laser cutting is not degrading over<br />
time. (Important)<br />
3) Put some type of restriction device to stop tubes having too much<br />
slack and being kinked. (Somewhat important).<br />
3) Add something to the water to keep cootie free. (Not important)<br />
4) Give the bed a chemical bath. (Not important)<br />
<br />
Observations:<br />
1) There was a kink in the input water cooling pipe once the back<br />
cover was closed, this essentially meant not enough nice cool water<br />
was not getting to the laser tube. This would have meant the tube<br />
would have heated up and degraded its life. This looks to have been<br />
caused by curious hands. The cooling system works, but if can't<br />
measure the temperature inside the laser tube, (the kink was just<br />
before entering the tube).<br />
2) One of the axis is slipping a bit, this will be fixed tonight,<br />
tomorrow or Wednesday night. Time permitting.<br />
3) Alignment of optics looks all good at the moment (thanks to Sol).<br />
4) Something needs adding to the water to stop growths - does anyone<br />
have any recommendations?<br />
5) More people need a good training in servicing, too much burden is<br />
being put on too few people to maintain and fix the cutter. We need<br />
to acknowledge that servicing and maintenance takes significant time<br />
and it is unreasonable to assume these responsibilities will be with<br />
someone else... it's a community, step up and help!<br />
<br />
Summary:<br />
Most of the things I and Sol have looked at and addressed these last<br />
few visits can be summarised:<br />
Negligence - resolved by a more training. Essentially people not<br />
understanding what the symptoms mean and their severity.<br />
Curiosity - There needs to be a boundary here. Dirty fingers, water<br />
contamination, and opening the back up and introducing a kink that<br />
broke the cooling system...<br />
Maintenance - people need to give it a clean or vacuum every so often,<br />
gunk forms on the mesh and debris. We aren't talking about a massive<br />
scrub down, a simple vacuum will help.<br />
<br />
To the person who regularly misunderstands my emails and irc comments,<br />
please refrain from snarky comments this time. If my english leads to<br />
any misunderstanding or confusion please email me off list. Or well<br />
volunteer yourself.<br />
<br />
-asc <br />
</nowiki></pre><br />
<br />
===12/8/2011 note by mattvenn ===<br />
<br />
from the IRC channel:<br />
<br />
* the power also has been degrading significantly quicker than expected.<br />
* the whole system needs a clean,<br />
* the air extraction cover whatsit needs looking at to determine why the laser head hits it, <br />
* alignment so bad, cable to laser pointer was getting zapped<br />
* and when cutting the arm goes completely off the table sometimes<br />
<br />
===9/8/2011 Note by [[User:Robert|Robert]]===<br />
<br />
Attempted diagnosis print across the whole bed area to confirm that the air assist nozzle is not being hit at any point.<br />
<br />
"Run box" caused the print head to leave the print area and make a grinding noise, test aborted.<br />
<br />
===3/8/2011 Note by [[User:Russ|Russss]]===<br />
There were reports that the beam was hitting the air assist nozzle. This results in reduced/no laser power and the X stage getting hot (which is bad).<br />
I painted the inside of the nozzle with black paint (with the assumption that it'll burn off if the beam hits it), but couldn't manage to make it happen. I didn't try everywhere round the bed though.<br />
<br />
Someone needs to see if it's working fine at all corners of the bed, and the X stage probably also needs tightening up a bit.<br />
<br />
===7/7/2011 Note by [[User:Solexious|Solexious]]===<br />
Took apart the lens gantry to give it a clean: http://www.flickr.com/photos/solexious/5916437652/in/photostream<br />
<br />
I also cleaned the bed, gave it a hoover and completed the "every 25 hours" tasks. Sadly this didn't fix the bi direction engrave errors, more investigation needs to be done. <br />
<br />
===26/6/2011 Note by [[User:Solexious|Solexious]]===<br />
<br />
Lasercutter is back up and happy, no interlock in place for flow.<br />
<br />
Coolbot is being logged to csv files in /home/solexious/coolbot on babbage, and the irc commands ?lasertemp and ?lasertube have been added.<br />
<br />
There still seems to be a issue with bi-directional engraving causing ghosting, seems something on the x axis (the one holding the lens to the moving rail) is loose.<br />
<br />
===20/6/2011 Note on behalf of [[User:Russ|Russss]]===<br />
<br />
21:36 <@solexious> So, none of the lasercutter users so far today have used the log, win... oh no, <br />
the opposite of win<br />
21:37 <@russss> solexious: and I did the intro for them too!<br />
21:37 <@russss> solexious: I admit that I didn't use the log, but then I did tell you directly :P<br />
21:38 <@russss> and 90% of the time I spent was with the laser not working...<br />
21:40 <@solexious> incoming meddling over vnc to remind them!<br />
21:40 <@russss> if you're meddling, could you tell them to make sure there's not too much water in <br />
the back of the machine?<br />
21:40 <@russss> if it is indeed in use<br />
21:40 <@solexious> okie dokie<br />
21:41 <@russss> solexious: oh, also have you noticed that one of the cooling fans is broken, and <br />
the other one sounds like it's on the way out?<br />
21:41 <@solexious> russss: no i had not, swear they were working the other day!<br />
21:41 <@russss> solexious: ok, interesting.<br />
21:41 <@russss> lots of dust in the electronics bay too<br />
21:42 <@russss> but I guess that's to be expected. Could do with a good hoover out<br />
21:42 <@solexious> gave it a quick can o air, but a hoover would be useful<br />
21:43 <@russss> I suspect with one fan down, dust from inside the cutting chamber could potentially <br />
re-enter the electronics bay<br />
21:43 <@solexious> bah, vnc fail, oni, could I ask you to poke them about the log plox<br />
21:43 <@russss> and that would be bad.<br />
<br />
<br />
===17/6/2011 Note by [[User:Solexious|Solexious]]===<br />
<br />
Beam aligned, but the cartage holding the lens is loose, this could be causing the ghosting when engraving with bi-direction on.<br />
<br />
Cool bot is mostly rebuilt and will be reinstalled on Sunday the 19th<br />
<br />
===16/6/2011 Note by [[User:Solexious|Solexious]]===<br />
<br />
Confirmed tube death, new tube working as expected.<br />
<br />
Still to do: Align, and rebuild cooling and also give the bed a good cleaning.<br />
<br />
===14/6/2011 Note by [[user:ciaran.mooney|Ciarán]] on behalf of [[User:Solexious|Solexious]]===<br />
<br />
The following is from this [http://groups.google.com/group/london-hack-space/browse_thread/thread/ec1d5ba37d6c49fc mailing list] thread.<br />
<br />
:After working on it today, and changing the optics, it is obvious now that it has suffered a tube :death. The lasercutter is currently in pieces and is not safe to use. The cutter will be out of :action till some time on Thursday when we have the missing bits to install the new tube. (whom ever :thought it was funny to pressurise the sealant gun till it ruptured owes us a new tube)<br />
<br />
:On the plus side we are taking this down time to add rfid to the laser cutter thanks to Mark (no :more loosing the keys \o/) and I am also switching out coolbot from an arduino to a nanode, this :will allow us to graph cooling temperature and also log laser usage hours (as sadly alot of users :don't bother any more, shame on them!)<br />
<br />
===3/6/2011 Note by [[User:Solexious|Solexious]]===<br />
Cleaned out the cooling pipes with a raise in through put on the main pump.<br />
<br />
The cutter needs some tlc and cleaning, but nothing show stopping.<br />
<br />
===4/2/2011 Note by [[User:Ms7821|Mark]]===<br />
Laser makes a nasty noise when moving diagonally. I assume it needs some tightening around one of the wheels.<br />
<br />
===6/3/2011 Note by [[user:ciaran.mooney|Ciarán]]===<br />
<br />
* Solexious performed some maintence on laser, [http://groups.google.com/group/london-hack-space/browse_thread/thread/9cfa40ff9c4047e1 details]<br />
<br />
=== 5/3/2011 Note by [[User:Ms7821|Mark]] ===<br />
The laser cutter PC power supply is a bit dodgy. Straight after turning the machine off, it refused to turn back on. No response to the keyboard or power switch.<br />
<br />
Replugging it multiple times had no effect, although after leaving it for a while (30 seconds) it booted automatically when plugged back in.<br />
<br />
<br />
===23/2/2011 Note by [[User:Tom Newsom|Tom Newsom]] ===<br />
* Lazor PC has trouble booting. If it gets stuck on the blue windows screen, hard reboot, hold F8 and choose last good configuration<br />
: Please don't do this. Last good configuration can screw up the registry in confusing ways. [[User:Ms7821|Ms7821]] 09:19, 23 February 2011 (UTC)<br />
:righto. Bloody windows!<br />
<br />
===10/2/2011 Note by [[User:Solexious|Solexious]] ===<br />
* The cutter has now been fully aligned<br />
<br />
===9/2/2011 Note by [[User:Solexious|Solexious]] ===<br />
'''Problems found:'''<br />
* Flow through the system was 1/4 the speed it should have been.<br />
* The flow interlock had gummed up with gloop and had failed not safe. The bung inside the mech had jammed causing the tube not to be shut off.<br />
* This would have caused limited cooling of the cutter, not detectable by coolbot. <br />
<br />
'''Solutions undertaken:'''<br />
* All pipes and interlocks were cleaned out and flushed. A dead bee was removed.<br />
* Further flow tests brought the flow back to 95% of the maximum flow possible for the pump, this is well within good bounds<br />
* The old tube was replaced, new tube hooked up and tested / aligned.<br />
* New deionised water was swapped out and flushed through the system.<br />
<br />
'''Further steps:'''<br />
* Obtain inline filter and a external filter for cleaning the tank.<br />
* Investigate adding a flow meter so the flow can be graphed and alert us if the interlock fails again.<br />
* Add outflow heat temperature sensors (hotbot)<br />
* Investigate methods of keeping the deionised water free from gloop<br />
<br />
'''Outcome:'''<br />
* The laser is now working again, and at the power level we had when we first got the cutter.<br />
* A short alignment session happened, but a longer one is needed to have the alignment spot on over the whole bed.<br />
<br />
===8/2/2011===<br />
<br />
*Actual case of bug being found in lasercutter cooling system<br />
<br />
===3/2/2011 Long discussion with lots of information on IRC, edited by [[User:Ms7821|Mark]]===<br />
Summary:<br />
* We're getting a new tube by Tuesday<br />
* Parts of it are dirty <br />
* Coolbot is being dealt with by [[User:Solexious|Solexious]], please bear with us<br />
* After replacing the tube, we may insist on Coolbot being used at all times<br />
* We need to look into the cleaning process seriously<br />
<br />
<pre><nowiki><br />
18:54:21 <@solexious> the cutter is only up for doing tiny jobs for training<br />
<br />
19:23:16 <@solexious> right, the lasercutter is out of order, please don't use it or the cooling system till we have the new tube<br />
<br />
20:44:57 <@solexious> lovelace_: the WHOLE system is out of order and not to be used, when the system is working the cooler is working too<br />
<br />
21:08:11 < lovelace_> basically, the whole machine is "filthy". every mirror, the inside, and the outside of the laser tube is covered in crap. we are documenting it.<br />
21:08:35 <@solexious> lovelace_: 2 of the mirrors are NEW<br />
21:08:44 < lovelace_> doens't make them clean<br />
21:08:51 <@russss> lovelace_: I assume that is because people have been running the laser while it's had an "out of order" sign on it.<br />
21:08:56 <@russss> and nobody's known to clean it.<br />
21:09:02 < lovelace_> yup<br />
<br />
22:11:11 <@solexious> could you tell him hpc can get us 2 tubes on monday/tuesday and its £195 +vat +del<br />
<br />
22:35:23 < kal> Sol: There is a hole on the water cooler that looks like it can be adjusted for regulate the amount of cooling. but it as a screw instead of nob<br />
22:35:27 < kal> knob*<br />
22:35:46 < kal> does that do anything/ have you tried to adjust it?<br />
22:36:21 < kal> for = to*<br />
222:38:07 < artag> kal, the cooler itself is a chiller for drinking water. It tries to get it's coil temp down to a few deg C. This is much too cold for the laser tube. Coolbot pumps water from the tank through the chiller when the tank is warm. The screw adjusts how hard the chiller tries to get down to low temps.<br />
22:40:04 < artag> since the tank is always fairly warm when coolbot needs to cool it, the chiller's thermostat will be on regardless of that screw setting<br />
<br />
22:45:40 <@solexious> kal: i ask for leaving coolbot as it is my project, rather than a general hackspace item<br />
<br />
00:20:28 < BytePilot> (sigh) well, cleaning its internals was a good plan anyway,<br />
00:20:46 < BytePilot> solexious: I had a good peek at tht tube, it's _full_ of grot<br />
00:20:58 <@solexious> BytePilot: yup<br />
00:21:31 < BytePilot> and that MDF is icky tarry stuff. Porr machine had ick in places where nobody should have ick.<br />
00:21:47 <@solexious> BytePilot: the lens and mirrors were cleaned a few days ago, with 2 of the mirrors being new<br />
00:22:16 < BytePilot> solexious: (wince) Ouch.<br />
00:22:31 <@solexious> and it hasnt been used much at all<br />
00:23:09 < BytePilot> solexious: the mirror on the back of the flying Y axis was _filthy_ utterly coated in gak, and I gleaned literal Lumps out of the wee hole in the mount for the vertical mirror<br />
00:23:57 < BytePilot> Might be worth saying "acrylinc/laser ply only" until we know what the trouble is.<br />
00:23:59 <@solexious> ah yes, that one still needed doing, one of the reasons it was out of order, sadly the sign had apparently been removed<br />
00:24:17 < BytePilot> I didn't open the power supply chamber, but I'm guessing that could do with a frisk over too<br />
00:24:42 < BytePilot> (HeadDesk)<br />
00:25:35 < BytePilot> also, we couldn't get the coolbot interface to work (ie suppy power to the subsidiary pump), is there something we needed to know ?<br />
00:26:04 <@solexious> BytePilot: no, its all just out of order at the moment<br />
00:26:35 < BytePilot> I'm also going to take screenshots of all the settings for the machine I have here, and compare them to those you have there. Just in case someone has fiddled with a number they shouldn't have.<br />
00:27:14 < BytePilot> There'll be some differences in bed size/shape but the power output settings should be similar.<br />
00:27:15 <@solexious> BytePilot: sounds good, ive also got a full copy of the software/settings backed up<br />
00:27:36 <@solexious> (from when all was working well)<br />
00:27:39 < BytePilot> Solexious: good plan. that 35%=100% thing gives me the fear. Something is _very_ odd there.<br />
00:28:06 <@solexious> BytePilot: have you had a tube fail on you?<br />
00:28:44 < BytePilot> Solexious: Nope, not even any significant power drift. and my cooling water came out of the tap (via a water filter)<br />
00:28:49 <@solexious> and 35%==75%<br />
00:29:35 <@solexious> ^ pedant<br />
00:29:44 < BytePilot> solexious: (grin) I'm going to stay awy from actually using the poor thing until it's behaving comprehensably again.<br />
00:30:37 <@solexious> cool, thanks for saving me from giving it another clean<br />
00:30:48 < BytePilot> solexious: we got the subsidiary pump working again (percussive maintainance) and it's now ganged into the switched socket with the main pump, since they only draw 500ma between them<br />
00:31:59 < BytePilot> Solexious: S'cool. I think people are taking advantage a little, making you clean the machine for them. I know that some parts need delicate handling, but they should at least vaccum out their dust<br />
00:32:01 <@solexious> oh christ, i hope the cutter is off till i get there to un do that<br />
00:32:15 < BytePilot> solexious: why ?<br />
00:32:27 < BytePilot> solexious: it works, and works well.<br />
00:32:31 <@solexious> it will chill the tube to 7 degrees<br />
00:33:00 < BytePilot> solexious: seven degrees ? How ?<br />
00:33:19 <@solexious> i was told that the coolbot had been left alone after numerous requests on irc<br />
00:33:20 < BytePilot> solexious: the chiller isn't even close to that powerful.<br />
00:33:51 <@solexious> BytePilot: it is, thats what happened before coolbot when the cooling system is manual<br />
00:34:03 <@solexious> s/is/was/<br />
00:34:15 < BytePilot> Was the chiller left on 1005 of the time ?<br />
00:34:19 < BytePilot> 1005 even ?<br />
00:34:29 < BytePilot> (bugger, pokes shift key)<br />
00:35:06 <@solexious> it was left on over night, came in to a box of 7 degrees water<br />
00:35:49 < BytePilot> The pump that drives the water to the chiller will only come on when the pump that drives teh water to the laser is also on<br />
00:35:50 <@solexious> its slow, but can chill quite well<br />
00:36:14 <@solexious> BytePilot: if the lasercutter is left off<br />
00:36:50 < BytePilot> (blink) you're not telling me someone left the entire rig on overnight ?<br />
00:37:11 < BytePilot> Ok, that kind of criminal idiocy we didn't think even possible.<br />
00:37:44 <@solexious> and as my requests for it to be turned off and left alone were ignored, im not expecting that to be followed now<br />
00:38:44 <@solexious> BytePilot: sadly i've come to realise you have to treat people as idiots in the space (alto most people arnt, just miss guided)<br />
<br />
00:40:16 < BytePilot> (thinx) Could sense the laser power and drive the chiller off that.<br />
00:40:24 < BytePilot> No that's no use.<br />
00:40:33 < BytePilot> still allows idiocy<br />
00:40:55 <@solexious> BytePilot: when the system isn't out of order it works well, its just the human element that breaks it :)<br />
00:41:12 < BytePilot> Solexious: Aye, and we're going to have to sort that out.<br />
00:41:40 < BytePilot> solexious: I honestly think that one of the best things we could do is move the laser out of the "dirty" area and into someplace less full of dust.<br />
00:42:31 < BytePilot> Solexious: The tube chamber at the back of the cutter was full of fine sawdust, I had to clean the outside of the tube before I could be sure that the inside really was gunky (it really is)<br />
00:43:32 <@solexious> its pretty much a sealed box, its more likely thats from cutting mdf than from the workshop<br />
00:44:02 <@solexious> and the sealed cooling system didnt get shite into it, just a shame it got busted in the move.<br />
00:44:19 < BytePilot> solexious: In which case, definitly less MDF, t<br />
00:44:31 <@creature> I've been cutting some mountboard recently. So if the dust was more like burnt paper than MDF, I could have been the source. Sorry, if so.<br />
00:44:46 < BytePilot> solexious: cooling system is a lot more sealed now. I'd go so far as to say it's very sealed<br />
00:45:12 <@solexious> BytePilot: I think just a forced log book so we can see at a glance how much use it getting and do full cleans accordingly<br />
00:45:23 < BytePilot> Creature: Unless your mountboard was light brown and you were cutting a lot of it I'd go with MDF<br />
00:45:45 < BytePilot> solexious: tricky to enforce.<br />
00:46:07 * solexious gets out his boom stick enforcer<br />
00:46:10 < BytePilot> solexious: (does thinking in head)<br />
00:46:33 < BytePilot> Also, I couldn't find any white lithum grease, or isopropanol in the space,<br />
00:46:56 <@solexious> but once we have the relaser software we can log it electrically<br />
00:47:10 <@solexious> was the iso ont next to the sink?<br />
00:47:11 < BytePilot> vodka works for clearing gunk, but some parts of the machine need a "proper" clean<br />
00:47:32 < BytePilot> solexious: not that I saw (shrug) possibly just me being blind<br />
00:47:44 <@solexious> heh, it hides from me alot too<br />
00:47:55 < BytePilot> solexious: so long as people aren't drinking it<br />
00:48:00 <@solexious> take it you found the cleaning kit<br />
00:48:20 < BytePilot> solexious: (grin) I didn't someone found it for me<br />
00:48:48 < BytePilot> solexious: Oh, also, remind me to bring a Z-axis ruler<br />
00:49:10 < BytePilot> solexious: excellent pre-cut suare that's just the right height to set the laser above your cutting surface.<br />
00:49:14 < BytePilot> (square even)<br />
00:49:15 <@solexious> how come? and is it different from a normal ruler?<br />
00:49:23 <@solexious> ah<br />
00:49:47 < BytePilot> No need for any level of cleverness, just stick the square underneath and if it just fits you got it right<br />
00:50:10 < BytePilot> (cut for the wee metal plate on the Y axis, not for the laser head itself)<br />
00:50:12 <@solexious> not sure i can picture that...<br />
00:50:25 <@solexious> oooh<br />
00:51:02 <@solexious> i just put a ruler on the bed and move the z till it touches the top of the z ruler<br />
00:51:30 < BytePilot> (grin) I don't trust my Z ruler<br />
00:51:43 < BytePilot> because I know for sure my bed isn't flat<br />
00:52:20 <@solexious> heh, after doing 0 tests on acrylic that seems to be the only accurate bit of the cutter<br />
00:52:20 < BytePilot> Nor is the one at the space either alas. I don't think it's sloped, but it is lumpy. damn "honeycomb"<br />
00:52:50 < BytePilot> (sigh) they are rather thrown together aren't they...<br />
00:53:11 <@solexious> i take it you saw the x and y rulers with 10" 11" 11" 12"<br />
00:53:28 <@solexious> still makes me chuckle<br />
00:56:11 < BytePilot> worried me rather, wasn't sure I'd seen it right.<br />
00:56:37 < BytePilot> Right, I'm off to kip.<br />
00:56:43 <@solexious> nn<br />
00:56:52 < BytePilot> I'll have a look at my own machine and see if I can see anything that looks suspect<br />
00:57:09 < BytePilot> because grotty as the tube is, I'm not sure that's going to be our magic bullet.<br />
00:57:24 < BytePilot> also, I think we might be able to flush the grot out.<br />
00:57:43 < BytePilot> and we definitely need fresh water in the colling system, if's got "bits" in it.<br />
01:02:46 <@solexious> BytePilot: by all means try, but I have given it a large flush<br />
</nowiki></pre><br />
<br />
===2/2/2011 Note by [[User:Naxxfish|Naxxfish]] ===<br />
* The lasercutter continues to be unhappy. <br />
** The water gets warm quite quickly, and takes ages to cool down. (stays around 25C after doing a couple of jobs)<br />
** Phish and Fish vacuumed the bed, reducing fires one bit of acrylic at a time!<br />
** Seems to cut and etch OK with the "adjusted" settings. <br />
<br />
===20/1/2011 Note by [[User:Solexious|Solexious]] ===<br />
* The lasercutter is unhappy, here are its symptoms:<br />
** Power varies during a job, regardless as to where on the bed it is cutting.<br />
** If the cutter is paused for ~1min and started again the resulting power output will be noticeably higher.<br />
** The exhaust water is flowing slowly, crap was removed from the flow, it now is back to full water power.<br />
* I am awaiting for a call from hpc laser<br />
<br />
===19/1/2011 Note by MattVenn ===<br />
Just to agree with Mark (below). I've spent about 4 hours over the last few days trying to get some settings that will cut 4mm laser ply. In the past, I have managed it in one cut! Now I can't do it with 8 passes!<br />
<br />
===19/1/2011 Note by [[User:Ms7821|Mark]]===<br />
* The laser cutter <b>will not cut</b> 4mm ply. It won't even scorch the bottom of the wood after 4 passes at speed 3 (and it's hard to tell whether it's cut or not without moving the target). I assume Z axis fiddling is required, but until a decent process is worked out, I've written a warning on the speed chart.<br />
* Enormous difficulty on one pass at speed 5 with 3mm light (balsa) wood. Didn't cut all the way through, and we were again unable to tell whether everything was cut. A large part of the job hardly scratched the wood at all. Recutting this area caused bad singeing in places, so I don't think it's a power issue, but some places/curves still didn't recut.<br />
If we can't work out how to fix the focus/mirrors, can I suggest contacting HPC Laser?<br />
<br />
===14/1/2011 Note By [[User:JasperWallace|JasperWallace]]=== <br />
* I dropped my hackspace keyring (one of the old ones from when we first had the cutter), and it shattered, it looks like stress was concentrated at the corners and it split from there - lesson learned: if you want cut things to last, specially if they are under any stress then round the corners!<br />
<br />
===11/1/2011===<br />
* Cooler was damaged in the move. SamLR reports 'we were moving the laser through to unit 23 the cooling unit fell over. We'd balanced coolbot on top of the water box so when it went over the whole thing got wet, beyond that I have no idea what's good to go and what isn't sorry'<br />
* To the best of my understanding, the cooler is not operating and the coolbot cannot immediately be reassembled. Note that the laser tube can be damaged by both high and low temperatures; the laser operation can quickly take the coolant above the maximum and the uncontrolled cooler can take it below the minimum. Coolbot is required to operate the cooler safely, and even when operating correctly there is no automatic cutout so it can still be abused. However, much care should also be taken if the laser is operated without cooling. It can get outside the safe limits in half an hour or so. ---[[User:Artag|Artag]] 21:04, 14 January 2011 (UTC)<br />
<br />
===11/1/2011 Operator Matt Venn===<br />
* Helped get the laser setup in the new room<br />
* Spent 30minutes fiddling with Z axis to get a decent and reliable cut on 4mm laser ply at a speed of 3.2.<br />
* Laser spent 40 minutes cutting my pattern, but 80% of cuts didn't make it through the ply.<br />
<br />
===9/1/2011 Operator Alex P===<br />
* Used lasercutter to prototype a project in 210gsm cardboard. Worked fine for this, using a speed of 30, a power of 40, and a corner power of 20.<br />
<br />
===3/1/2011===<br />
*Went to test if it was Z-datum/alignemnt problem previously (see below), now it seems that the Layz0r shuttle PC does not want to power up.<br />
*<s>Laser turns on, along with cooling equipment, and Monitor is in standby. Changed cable for the PC to check if the fuse was blown, didn't work.</s><br />
*Layzor PC seems to be turning on now, panic over.<br />
*Tested laser z-axis problem. Scroll job = 1mm. Moving the platform down a few millimetres makes it cut 3mm MDF now.<br />
<br />
===31/12/2010 Operator [[user:ciaran.mooney|Ciarán]]===<br />
*Tried to cut 4mm MDF using reccomended settings (speed 4, 100%). Laser cutter unable to cut through. Tried again with Speed=3, two passes and hit the "Z-Datum" button combo, but still laser unable to cut. Gave up.<br />
*After speaking to Sol about the problem it may been caused by my own inabilities to set the z-datum correctly.<br />
<br />
===30/12/2010 Operator [[User:Teabot|Elliot]]===<br />
* Tried to cut 4mm acrylic on my usual settings (speed 6, 100%). Cuts were uneven and often didn't break through. Retried with speed 4 and got a similar result. Could have been a Z-Axis issue as I'm still uncertain on how to align this - I just set the the top of my material to the '0' point on the rule. Previously I used to just press 'Z-Axis/Datum'.<br />
<br />
===15/12/2010 Operator [[User:Solexious|Solexious]]===<br />
* Installed the improved cooling system.<br />
* Flushed and replaced the deionised water.<br />
* Cutter working well, but most cuts now require -1 to speed, may need to check alignment, or a tube issue.<br />
<br />
===14/12/2010 Operator [[user:ciaran.mooney|Ciarán]]===<br />
* Started up laser, cut x3 small key rings from 4 mm MDF with Duncan. Not a problem worked perfectly.<br />
* Later noticed when Glenn was cutting a lot of MDF that water heating up, and there was no return water coming from chiller.<br />
* Topped up water in reservoir with distilled water to the line, so that Glenn could finish.<br />
* Russ turned up and had a look. Seems that the pump supplying water to chiller worked fine when plugged into it's own power. Plugging the chiller into separate power didn't seem to do anything.<br />
* Russ reckons there is a block.<br />
* Needs further looking at, probably best only to use the laser cutter for small jobs until it's sorted.<br />
<br />
===6/12/2010 Operator [[User:Solexious|Solexious]]===<br />
* Connected CoolBot to the cooling system, seems to be working as expected, documentation to follow.<br />
* Cleaned mirrors and lens due to high usage of mdf creating dirt etc.<br />
* Reports of slight reduction of cutting power in the bottom right of the bed, may be mirror alignment or bed levelling required. <br />
<br />
===4/12/2010 - 5/12/2010 Operator [[User:Teabot|Elliot]]===<br />
* Cut some [http://www.thingiverse.com/thing:5044 Arduino enclosures] with some 3mm Palglas (acrylic). The material cuts really well and provides great results.<br />
* Also tried to cut some 10mm Palglas. It did cut all the way through but I think that the thickness of the material impedes heat dissipation because there was a fair bit of melting. I may try a higher speed (was using 1) or multiple passes.<br />
<br />
===18/11/2010 Operator [[User:Teabot|Elliot]]===<br />
* Removed and replaced the lid to clean out some perspex offcuts that were hindering the operation of the hinge.<br />
* Cut some 3mm MDF with good results. The extractor and cooling system seem to be working well.<br />
<br />
===15/11/2010 Operator [[User:Solexious|Solexious]]===<br />
* The cooling system was added inline after the exaust water flow from the laser. This was found to cause the safety controls to kick in and disable the laser.<br />
* This was removed, and a separate pump added to the reservoir to keep the cooling of the water a separate system to the cutter pump.<br />
* The system cools the water as much as possible while on, so needs to be controlled manually. A micro-controlled system to show the temperature/water levels and regulate cooling is currently being made. <br />
<br />
===14/11/2010 Operator [[User:Solexious|Solexious]]===<br />
* Called into the space as the laser cutter software was crashing on compile. I found the machine settings were not those left by me the night before, and reset them. This fixed the issue. I have taken a back up of the now working setup, and also left a copy of this zip in the root of the C drive.<br />
<br />
===13/11/2010 Operator [[User:Solexious|Solexious]]===<br />
* Added a new extractor fan to the cutter, it is more powerful than the current fan, and any more upgrades will also have to increase the air flow into the cutter.<br />
* Due to [[User:Russ|Russ]]' fix for the x axis working so well I tested changing the acceleration and working speeds back to full. Meaning quicker job times. A complicated cut was preformed with 0% errors. Due to this the settings are now updated and uploaded to the machine.<br />
<br />
===23/10/2010 Operator [[User:Teabot|Elliot]]===<br />
* I cut some Palglas acrylic to make a kind of [[:File:Teabot-Cubauble.jpg|box]]. Palglas seems to be a reasonable, cheaper alternative to Perspex.<br />
<br />
===18/10/2010 Operator [[User:Russ|Russ]]===<br />
* I etched [http://www.flickr.com/photos/russss/5091352406/ my laptop] (the complex piece in my previous log entry). X/Y alignment was perfect, no evidence of backlash.<br />
* However, etching performance (actual delivered power) seems to be less in the top right-hand corner of the piece. This could either be due to beam alignment, or due to the bed/piece not being level.<br />
<br />
===16/10/2010 Operator [[User:Solexious|Solexious]]===<br />
* After [[User:Russ|Russ]] fixed a problem with a drive shaft, I attempted to align the laser.<br />
* The drive shaft slipped and came apart, I removed swarf from inside, and using hex bolts has given a tighter grip.<br />
* These problems solved I aligned the beam and the laser power is now even across the entire bed<br />
<br />
===15/10/2010 Operator [[User:Russ|Russ]]===<br />
* I tried to engrave a particularly complex piece. The laser software naturally decided to plot this in a weird way, cutting parts of each line in turn instead of the whole path at once.<br />
* This exposed a fairly severe backlash issue. Nothing joined up.<br />
* This appeared to be an issue with the drive shaft linking both belts of the X axis. The part doing the actual linking was extremely poorly machined.<br />
* I machined a new part on the lathe in 20mins, hastily installed it, and then had to leave for Hamburg leaving Billy to reassemble the laser cutter.<br />
<br />
===5/10/2010 Operator [[User:Russ|Russ]]===<br />
* Mirror was replaced with the new one from HPC.<br />
<br />
===30/09/2010 Operator [[User:Russ|Russ]]===<br />
[[File:Laser-mirror.jpg|300px|thumb|right|Exhibit 1: Melted Mirror]]<br />
* I was called to the space due to a report of the laser not working.<br />
* It turned out that the #2 mirror had melted. Likely because I left some residue on it while calibrating the beam (it's hard to see that mirror).<br />
* New mirror ordered from HPC (~£50)<br />
<br />
===23/09/2010 Operator [[User:Solexious|Solexious]]===<br />
* Cutter working well, no skipping of steps after Russ and I fixed an issue with the far right drive shaft.<br />
* The machine settings for speed of movement have been lowered to try to reduce drift during cutting.<br />
<br />
===19/09/2010 Operator [[User:Solexious|Solexious]]===<br />
* After a failed attempt due to a slipping belt (probably the cause of the issues on the 18th), a [http://www.thingiverse.com/derivative:3824 money box] was cut and assembled using the [http://www.thingiverse.com/thing:404 Box-o-Tron] as a base for the dxf file.<br />
* There is also a slight issue with focus of the laser, on 4mm acrylic settings of Speed 4 Power 100, at the side of the bed to the left it cuts perfectly, past 1/2 way to the right of the bed it fails to penetrate fully. A setting of Speed 5 Power 100 gives undesired blemishes from contact with the honey comb.<br />
<br />
===18/09/2010 Operator [[User:Meurig|Meurig]]===<br />
* George cut some 2mm acrylic to make an enclosure for a robot.<br />
* I created an [http://twitpic.com/2pt37b XKCD plaque in copper] using a two step (laser then chemical) process. These techniques will ultimatley be used to prototype PCBs. TBH, at this point the UV method is looking about as straightforward...<br />
* We etched Aden's HTC G1 with pedobear, using Cut power 20, corner power 10 and speed 100.<br />
* A Cthulu keyring was made on 2mm acrylic towards the end of the day. We did notice a few problems with this, namely at one point a hole came out non-circular, but also the etched layer didn't align correctly with the cut layer, out by about 2mm. No explanation for these at this point.<br />
* I tried making a PCB, but should have used single sided copper.<br />
<br />
===16/09/2010 Operator [[User:Solexious|Solexious]]===<br />
* Cut out the [http://www.flickr.com/photos/solexious/4999127940/ coin slot] peices for the 4 in a row donations box<br />
* Small bumps formed on the side of the acrylic closest to the bed where the honeycomb was touching, will try to correct with +1 to speed setting.<br />
* Extraction is improved and unwanted smell is reduced with sheets of acrylic that are full bed size.<br />
* No other problems detected.<br />
<br />
===15/09/2010 Operator [[User:Russ|Russ]]===<br />
* Cut some 1.5mm neoprene fairly successfully - needs high power and it's a bit smelly. (Settings in the book.)<br />
* Circle issue is fixed. It was a problem with the tension on the frontmost X drive belt.<br />
* Did some [http://www.flickr.com/photos/russss/4991794474/ awesome etching] onto black anodised aluminium - 450mm/sec, 90% power.<br />
* We also built [http://twitpic.com/2pt43e an acrylic box] designed in qcad.<br />
* Cut some hackspace keyrings, but noticed that the acrylic, when warm, warped upwards. Pause function worked as expected letting us tape down, but some ventilation sucking from below the bed would help a lot.<br />
<br />
===13/09/2010 Operator: [[user:samthetechie|samthetechie]]===<br />
Todo: Test CorelDraw X3 with 20mm circles on paper and compare to test using [https://dl.dropbox.com/u/1909920/2010-08-28%2020.13.47.jpg LaserCutter Software]<br />
<br />
===12/09/2010 Operator: [[user:samthetechie|samthetechie]]===<br />
<br />
*Setup CorelDraw X3 with LaserCutter Add-on Toolbar.<br />
*Cut [http://sphotos.ak.fbcdn.net/hphotos-ak-ash2/hs325.ash2/60543_160044944009089_100000107531845_534016_4177806_n.jpg Mic On Sign] 3mm Perspex.<br />
*Cut [http://twitpic.com/2o1jls MusicMetric Sign] 6mm MDF.</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Project:UK_Hack_Camp&diff=16993Project:UK Hack Camp2011-08-16T21:56:05Z<p>Mars: </p>
<hr />
<div>Proposal has been made for a uk hack campto happen next year (august bank holiday has been suggested). Meet to happen within the next week or so, mailing list to be set up soon with emails we gathered from interested people at CCC, if you are interested add your name below<br />
<br />
* [[User:Crypt|Martin (Crypt)]]<br />
* [[User:Nigle|Nigle]]<br />
* [[User:Martind|martind]]</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Project:Shitcam&diff=16915Project:Shitcam2011-08-13T03:58:50Z<p>Mars: /* How It Works */</p>
<hr />
<div>In the spirit of the intrepid hackers who have adorned our 'space with webcams in ''almost'' every corner, here is my humble contribution -<br />
<br />
== How It Works ==<br />
The shitcam has been placed in a strategic, discrete location in the hackspace to capture people when sitting down to use the facilities. Instead of sending out a video stream, the raw data is continuously processed by a Processing sketch which uses [http://ubaa.net/shared/processing/opencv/ OpenCV] to implement face detection. When a face is detected a snapshot is uploaded to twitpic, using the [http://processing.org/discourse/yabb2/YaBB.pl?num=1258068743 twitpic4p] library.<br />
<br />
Before being twittered, the image is cropped to the approximate area of the detected face. This is important in order to respect people's privacy, and to avoid accidental prickpics, twatpics et c. Under testing I've found that extraneous bodyparts have only appeared when they actually look like a face.<br />
<br />
== Access ==<br />
To see the latest images look for london hackspace #shitface or go straight [http://twitpic.com/photos/flippetyflap here].<br />
<br />
== Future Improvements ==<br />
The picture quality is not great. Perhaps the could be a way to trigger a dslr when a face is detected, but focus might be a problem.<br />
I would also like to set up an RFID skimmer so that if a member has their access card in their pocket, your image will be directly added to your wiki profile, and the twitpic tagged with your name. I have a working prototype but need to find a way to mount the reader and run the cables. Also I would appreciate any advice on improving the range - around 10cm is all I have, at most.<br />
<br />
== Code ==<br />
The code is published under Gnu GPL and is attached, it's pretty straightforward:<br />
<nowiki><br />
import twitterpic.*;<br />
import hypermedia.video.*;<br />
import java.awt.Rectangle;<br />
import javax.imageio.*;<br />
import javax.imageio.stream.*;<br />
import java.awt.image.BufferedImage;<br />
OpenCV opencv;<br />
ImageToTwitter twitterer;<br />
<br />
PrintWriter output;<br />
PFont fontp;<br />
int capWidth =800;<br />
int capHeight=600;<br />
int contrast_value = 127;<br />
int brightness_value = 127;<br />
boolean drawArea = true;<br />
boolean transmit = false;<br />
int camera = 0;<br />
int margin = 30;<br />
String twiturl;<br />
String twittag;<br />
String twituser;<br />
String twitpass;<br />
int mode = 0;<br />
long lastTwit;<br />
long timeout = 60000;<br />
int recentMatches;<br />
int minimumMatches = 10;<br />
<br />
void setup() {<br />
///////////////<br />
String[] lines = loadStrings("shitcam.cfg");<br />
println("Config settings: " + lines.length + " lines");<br />
for (int i=0; i < lines.length; i++) {<br />
println(lines[i]);<br />
}<br />
twiturl = lines[1]; println("twiturl=" + lines[1]);<br />
twittag = lines[3]; println("twittag=" + lines[3]);<br />
twituser = lines[5]; println("twituser=" + lines[5]);<br />
twitpass = lines[7]; println("twitpass=" + lines[7]);<br />
transmit = boolean(lines[9]); println("transmit=" + lines[9]);<br />
contrast_value = int(lines[11]);<br />
contrast_value=contrast_value-127;<br />
println("contrast=" + contrast_value);<br />
brightness_value = int(lines[13]);<br />
brightness_value=brightness_value-127;<br />
println("brightness=" + brightness_value );<br />
drawArea = boolean(lines[15]); println("drawArea=" + lines[15]);<br />
camera = int(lines[17]); println("camera=" + lines[17]);<br />
margin = int(lines[19]); println("margin=" + lines[19]);<br />
timeout = int(lines[21]); println("timeout=" + lines[21]);<br />
minimumMatches = int(lines[23]); println("minimumMatches=" + lines[23]);<br />
capWidth = int(lines[25]); println("capWidth=" + lines[25]);<br />
capHeight = int(lines[27]); println("capHeight=" + lines[27]);<br />
///////////////<br />
//size( 320, 240 );<br />
size( capWidth, capHeight );<br />
fontp = loadFont("CourierNew36.vlw");<br />
opencv = new OpenCV( this );<br />
opencv.capture( width, height, camera ); // open video stream<br />
opencv.cascade( OpenCV.CASCADE_FRONTALFACE_ALT2 ); // load detection description, here-> front face detection : "haarcascade_frontalface_alt.xml"<br />
twitterer = new ImageToTwitter(this);<br />
}<br />
<br />
public void stop() {<br />
opencv.stop();<br />
super.stop();<br />
}<br />
<br />
void draw() {<br />
// grab a new frame<br />
// and convert to gray<br />
opencv.read();<br />
// opencv.convert( GRAY );<br />
opencv.contrast( contrast_value );<br />
opencv.brightness( brightness_value );<br />
<br />
// proceed detection<br />
Rectangle[] faces = opencv.detect( 1.2, 2, OpenCV.HAAR_DO_CANNY_PRUNING, 40, 40 );<br />
if(faces.length == 0)<br />
recentMatches = 0;<br />
else<br />
++recentMatches;<br />
<br />
// display the image<br />
image( opencv.image(), 0, 0 );<br />
///////////////////////////////////<br />
textFont(fontp, 12);<br />
fill(color(200,0,200));<br />
// draw face area(s)<br />
if(drawArea==true){<br />
noFill();<br />
stroke(255,0,0);<br />
for( int i=0; i<faces.length; i++ ) {<br />
rect( faces[i].x, faces[i].y, faces[i].width, faces[i].height ); <br />
stroke(125,0,0);<br />
rect( faces[i].x-margin, faces[i].y-margin, faces[i].width+margin*2, faces[i].height+margin*2 ); <br />
}<br />
}<br />
<br />
// stroke(0,255,0);<br />
for( int i=0; i<faces.length; i++ ) {<br />
Rectangle face = new Rectangle(max(faces[i].x-margin, 0),<br />
max(faces[i].y-margin, 0),<br />
min(faces[i].width+margin*2, width-faces[i].x+margin-1), <br />
min(faces[i].height+margin*2, height-faces[i].y+margin-1));<br />
// rect(face.x, face.y, face.width, face.height);<br />
// PImage snap = get(face.x, face.y, face.width, face.height);<br />
PImage snap = get(0,0,width, height);<br />
handleFace(snap);<br />
}<br />
}<br />
<br />
void handleFace(PImage snap){<br />
if(System.currentTimeMillis() > lastTwit+timeout<br />
&& recentMatches >= minimumMatches){<br />
twit(snap);<br />
}<br />
}<br />
<br />
void twit(PImage img){<br />
text(("twitting"),20,20);<br />
img.loadPixels();<br />
twitterer.setType(twitterer.PNG);<br />
if (transmit==true)<br />
{twitterer.post(twiturl, "shitface", twituser, twitpass, twittag, true, getBytes(img));<br />
text(("twitted"),20,40);}<br />
if (transmit==false)<br />
{text(("internet off - no tweet"),20,60);} <br />
lastTwit = System.currentTimeMillis();<br />
}<br />
<br />
byte[] getBytes(PImage img){<br />
ByteArrayOutputStream baos = new ByteArrayOutputStream();<br />
try{<br />
ImageIO.write((BufferedImage)img.getImage(), "png", baos);<br />
}catch(Exception e){<br />
e.printStackTrace();<br />
return new byte[0]; // Problem<br />
}<br />
return baos.toByteArray(); <br />
}<br />
<br />
void save(PImage img){<br />
text(("saving"),20,20);<br />
img.save("snapshot.png");<br />
text(("saved"),20,40);<br />
}<br />
</nowiki></div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Project:Shitcam&diff=16914Project:Shitcam2011-08-13T03:54:12Z<p>Mars: Created page with "In the spirit of the intrepid hackers who have adorned our 'space with webcams in ''almost'' every corner, here is my humble contribution - == How It Works == The shitcam has be..."</p>
<hr />
<div>In the spirit of the intrepid hackers who have adorned our 'space with webcams in ''almost'' every corner, here is my humble contribution -<br />
<br />
== How It Works ==<br />
The shitcam has been placed in a strategic, discrete location in the hackspace to capture people when sitting down to use the facilities. Instead of sending out a video stream, the raw data is continuously processed by a Processing sketch which uses [http://ubaa.net/shared/processing/opencv/ OpenCV] to implement face detection. When a face is detected (with configurable sensitivity and over more than n seconds) a snapshot is uploaded to twitpic, using the [http://processing.org/discourse/yabb2/YaBB.pl?num=1258068743 twitpic4p] library.<br />
<br />
Before being uploaded, the image is cropped to the approximate area of the detected face. This is important in order to respect people's privacy, and to avoid accidental prickpics, twatpics et c. Under testing I've found that no bodypart has appeared in the photos unless it actually looks like a face.<br />
<br />
== Access ==<br />
To see the latest images look for london hackspace #shitface or go straight [http://twitpic.com/photos/flippetyflap here].<br />
<br />
== Future Improvements ==<br />
The picture quality is not great. Perhaps the could be a way to trigger a dslr when a face is detected, but focus might be a problem.<br />
I would also like to set up an RFID skimmer so that if a member has their access card in their pocket, your image will be directly added to your wiki profile, and the twitpic tagged with your name. I have a working prototype but need to find a way to mount the reader and run the cables. Also I would appreciate any advice on improving the range - around 10cm is all I have, at most.<br />
<br />
== Code ==<br />
The code is published under Gnu GPL and is attached, it's pretty straightforward:<br />
<nowiki><br />
import twitterpic.*;<br />
import hypermedia.video.*;<br />
import java.awt.Rectangle;<br />
import javax.imageio.*;<br />
import javax.imageio.stream.*;<br />
import java.awt.image.BufferedImage;<br />
OpenCV opencv;<br />
ImageToTwitter twitterer;<br />
<br />
PrintWriter output;<br />
PFont fontp;<br />
int capWidth =800;<br />
int capHeight=600;<br />
int contrast_value = 127;<br />
int brightness_value = 127;<br />
boolean drawArea = true;<br />
boolean transmit = false;<br />
int camera = 0;<br />
int margin = 30;<br />
String twiturl;<br />
String twittag;<br />
String twituser;<br />
String twitpass;<br />
int mode = 0;<br />
long lastTwit;<br />
long timeout = 60000;<br />
int recentMatches;<br />
int minimumMatches = 10;<br />
<br />
void setup() {<br />
///////////////<br />
String[] lines = loadStrings("shitcam.cfg");<br />
println("Config settings: " + lines.length + " lines");<br />
for (int i=0; i < lines.length; i++) {<br />
println(lines[i]);<br />
}<br />
twiturl = lines[1]; println("twiturl=" + lines[1]);<br />
twittag = lines[3]; println("twittag=" + lines[3]);<br />
twituser = lines[5]; println("twituser=" + lines[5]);<br />
twitpass = lines[7]; println("twitpass=" + lines[7]);<br />
transmit = boolean(lines[9]); println("transmit=" + lines[9]);<br />
contrast_value = int(lines[11]);<br />
contrast_value=contrast_value-127;<br />
println("contrast=" + contrast_value);<br />
brightness_value = int(lines[13]);<br />
brightness_value=brightness_value-127;<br />
println("brightness=" + brightness_value );<br />
drawArea = boolean(lines[15]); println("drawArea=" + lines[15]);<br />
camera = int(lines[17]); println("camera=" + lines[17]);<br />
margin = int(lines[19]); println("margin=" + lines[19]);<br />
timeout = int(lines[21]); println("timeout=" + lines[21]);<br />
minimumMatches = int(lines[23]); println("minimumMatches=" + lines[23]);<br />
capWidth = int(lines[25]); println("capWidth=" + lines[25]);<br />
capHeight = int(lines[27]); println("capHeight=" + lines[27]);<br />
///////////////<br />
//size( 320, 240 );<br />
size( capWidth, capHeight );<br />
fontp = loadFont("CourierNew36.vlw");<br />
opencv = new OpenCV( this );<br />
opencv.capture( width, height, camera ); // open video stream<br />
opencv.cascade( OpenCV.CASCADE_FRONTALFACE_ALT2 ); // load detection description, here-> front face detection : "haarcascade_frontalface_alt.xml"<br />
twitterer = new ImageToTwitter(this);<br />
}<br />
<br />
public void stop() {<br />
opencv.stop();<br />
super.stop();<br />
}<br />
<br />
void draw() {<br />
// grab a new frame<br />
// and convert to gray<br />
opencv.read();<br />
// opencv.convert( GRAY );<br />
opencv.contrast( contrast_value );<br />
opencv.brightness( brightness_value );<br />
<br />
// proceed detection<br />
Rectangle[] faces = opencv.detect( 1.2, 2, OpenCV.HAAR_DO_CANNY_PRUNING, 40, 40 );<br />
if(faces.length == 0)<br />
recentMatches = 0;<br />
else<br />
++recentMatches;<br />
<br />
// display the image<br />
image( opencv.image(), 0, 0 );<br />
///////////////////////////////////<br />
textFont(fontp, 12);<br />
fill(color(200,0,200));<br />
// draw face area(s)<br />
if(drawArea==true){<br />
noFill();<br />
stroke(255,0,0);<br />
for( int i=0; i<faces.length; i++ ) {<br />
rect( faces[i].x, faces[i].y, faces[i].width, faces[i].height ); <br />
stroke(125,0,0);<br />
rect( faces[i].x-margin, faces[i].y-margin, faces[i].width+margin*2, faces[i].height+margin*2 ); <br />
}<br />
}<br />
<br />
// stroke(0,255,0);<br />
for( int i=0; i<faces.length; i++ ) {<br />
Rectangle face = new Rectangle(max(faces[i].x-margin, 0),<br />
max(faces[i].y-margin, 0),<br />
min(faces[i].width+margin*2, width-faces[i].x+margin-1), <br />
min(faces[i].height+margin*2, height-faces[i].y+margin-1));<br />
// rect(face.x, face.y, face.width, face.height);<br />
// PImage snap = get(face.x, face.y, face.width, face.height);<br />
PImage snap = get(0,0,width, height);<br />
handleFace(snap);<br />
}<br />
}<br />
<br />
void handleFace(PImage snap){<br />
if(System.currentTimeMillis() > lastTwit+timeout<br />
&& recentMatches >= minimumMatches){<br />
twit(snap);<br />
}<br />
}<br />
<br />
void twit(PImage img){<br />
text(("twitting"),20,20);<br />
img.loadPixels();<br />
twitterer.setType(twitterer.PNG);<br />
if (transmit==true)<br />
{twitterer.post(twiturl, "shitface", twituser, twitpass, twittag, true, getBytes(img));<br />
text(("twitted"),20,40);}<br />
if (transmit==false)<br />
{text(("internet off - no tweet"),20,60);} <br />
lastTwit = System.currentTimeMillis();<br />
}<br />
<br />
byte[] getBytes(PImage img){<br />
ByteArrayOutputStream baos = new ByteArrayOutputStream();<br />
try{<br />
ImageIO.write((BufferedImage)img.getImage(), "png", baos);<br />
}catch(Exception e){<br />
e.printStackTrace();<br />
return new byte[0]; // Problem<br />
}<br />
return baos.toByteArray(); <br />
}<br />
<br />
void save(PImage img){<br />
text(("saving"),20,20);<br />
img.save("snapshot.png");<br />
text(("saved"),20,40);<br />
}<br />
</nowiki></div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Components&diff=13502Components2011-04-12T15:49:45Z<p>Mars: /* Requests */</p>
<hr />
<div>The Hackspace carries a range of electronic (and other) components in stock. As a rule, members can use anything for free, as long as the cost is less than £1. However, if you're using more than £5-£10 worth of components a month, we'd appreciate a donation to cover those costs.<br />
<br />
==Purchasing==<br />
'''Please include a link to the item, preferably from Farnell, or it won't be ordered.'''<br />
<br />
If you're a member of the space we'll happily order components for you and take advantage of bulk discounts/free shipping. If the component you request is cheap, we may order more than you need and bring it into stock in the space (if that's the case, then it's free as above).<br />
<br />
===Requests===<br />
* [http://uk.farnell.com/txc/9b-16-000meej-b/xtal-16-000mhz-18pf-hc-49s/dp/1842217 16MHz crystals] (farnell)<br />
* [http://uk.farnell.com/arduino/a000046/board-arduino-uno/dp/1848687 Arduinos] (we should probably get these from Earthshine, but our budget is a bit tight to stretch to them currently -[[User:Russ|Russ]])<br />
* Miniature trimming potentiometers<br />
** [http://uk.farnell.com/tyco-electronics-citec/cb10lv103m/trimmer-top-adjust-10k/dp/1227539?Ntt=1227539 10K]<br />
** [http://uk.farnell.com/tyco-electronics-citec/cb10lv104m/trimmer-top-adjust-100k/dp/1227542?Ntt=1227542 100K]<br />
** I have large numbers of multiturn trimpots ([http://uk.farnell.com/bourns/3005p-1-103/trimmer-1-turn-10kr-1w/dp/1612602 like this]) and there should already be some in the space. I can bring more if they're all gone, but check first - it may be that people don't realise that's what they are, or all the most useful values have been used up. Multiturns are in most respects better than single-turn, and cost silly money but these are free - artag.<br />
* [http://uk.farnell.com/texas-instruments/cd4093be/ic-4000-cmos-4093-dip14-18v/dp/1106117 4093] (four NAND Schmitt Triggers in one chip, useful for e.g. polyphonic square wave oscillators) (now UK stock)<br />
* [http://uk.farnell.com/on-semiconductor/mc14017bcpg/ic-4000-cmos-4017-dip16-15v/dp/9666621 4017B] ("decade counter"/10-step counter, useful for sequencers) (now UK stock)<br />
* [http://uk.farnell.com/jsp/search/productdetail.jsp?CMP=i-ddd7-00001003&sku=1013948 4050N] level shifter<br />
* [http://uk.farnell.com/jsp/search/productdetail.jsp?CMP=i-ddd7-00001003&sku=1439387 MCP23008] I<sup>2</sup>C IO expander<br />
* [http://uk.farnell.com/texas-instruments/na555p/ic-precision-timer-8-dip/dp/1755011 555] and [http://uk.farnell.com/texas-instruments/na556n/ic-precision-timer-dual-14-dip/dp/1755012 556] timers. These are generally useful, we should always keep a few in stock.<br />
* Socket cap screws, nuts, washers:<br />
** [http://uk.farnell.com/tr-fasteners/m310-sohtcss100/screw-socket-cap-m3x10/dp/1419603 M3X10 x 100]<br />
** [http://uk.farnell.com/tr-fasteners/m316-sohtcss100/screw-socket-cap-m3x16/dp/1419605 M3X16 x 100]<br />
** [http://uk.farnell.com/roebuck/pfp1323/rbk-skt-cap-screw-m3x20-pk-100/dp/8835578 M3X20 x 100]<br />
** [http://uk.farnell.com/tr-fasteners/m325-sohtcss100/screw-socket-cap-m3x25/dp/1419607 M3X25 x 100]<br />
** [http://uk.farnell.com/tr-fasteners/m330-sohtcss100/screw-socket-cap-m3x30/dp/1419608 M3X30 x 100]<br />
** [http://uk.farnell.com/duratool/m3-hfst-z100/full-nut-steel-bzp-m3/dp/1419447 M3 nut x 100] x 6<br />
** [http://uk.farnell.com/duratool/d01100/washer-form-a-bzp-m3/dp/1623987 M3 washer x 100] x 5<br />
** [http://uk.farnell.com/duratool/d01133/spr-washer-s-coil-bzp-m3/dp/1624024 M3 spring washer x 100] x 1<br />
** General box of various M2-M10 nuts, bolts and washers. - RS Components 200-9841 and/or 524-095; 200-9778 and 200-9784, 849-423<br />
* Capacitors:<br />
** [http://uk.farnell.com/jsp/search/productdetail.jsp?sku=9411887 0.1&#181;F]<br />
** [http://uk.farnell.com/jsp/search/productdetail.jsp?CMP=i-ddd7-00001003&sku=1854832 0.39&#181;F]<br />
** [http://uk.farnell.com/jsp/search/productdetail.jsp?sku=1457606 0.47&#181;F]<br />
** [http://uk.farnell.com/jsp/search/productdetail.jsp?CMP=i-ddd7-00001003&sku=1165543 1&#181;F] (small)<br />
** 2.2&#181;F<br />
** 10&#181;F<br />
** 22&#181;F<br />
** 100&#181;F<br />
** 22pF pls!<br />
** [http://uk.farnell.com/jsp/search/productdetail.jsp?sku=9451099 220&#181;F]<br />
* Tools:<br />
** [http://cgi.ebay.co.uk/Digital-Multimeter-Tester-Test-Leads-Multi-Meter-/380320738345#ht_1781wt_989 Cheap multimeter] (eBay)<br />
** [http://uk.farnell.com/duratool/pl-501/cutter-micro-5/dp/1156001 Wire cutters]<br />
* Prototyping:<br />
** [http://cgi.ebay.co.uk/Solderless-Breadboard-Jumper-Cable-Wire-Kit-APPROX-130-/280619888517 Jumper wires] (eBay) - the ones we have are running low and are not the easiest to insert.<br />
** [http://uk.farnell.com/jsp/search/productdetail.jsp?sku=329538&CMP=i-bf9f-00001000 Spot face cutter]<br />
** [http://www.rapidonline.com/Tools-Fasteners-Production-Equipment/PCB-Equipment/Prototyping-Boards/Protobloc-2-protyping-breadboard/29459/kw/breadboard Breadboard] (Rapid)<br />
** [http://www.rapidonline.com/productinfo.aspx?tier1URL=Cables-Connectors&tier2URL=Connectors-Single-Pole&tier3URL=4mm-Connectors&tier4URL=4mm-Test-leads&moduleno=63910# Banana leads] (Rapid)<br />
<br />
===Personal requests===<br />
Alex: <br />
* [http://uk.farnell.com/texas-instruments/cd4017be/counter-multiplier-divider-logic/dp/1781086 Decade counter ICs] x 2 <br />
* [http://uk.farnell.com/texas-instruments/sn74ac14n/ic-inverter-schmitt-trigger/dp/1470853 Hex inverting Schmitt trigger ICs] x2<br />
<br />
AntLoom<br />
* [http://uk.farnell.com/fairchild-semiconductor/h11a1-m/optocoupler-transistor-o-p/dp/1021358?whydiditmatch=rel_3&matchedProduct=h11a1m&Ntt=h11a1m OPTOCOUPLER] x 2, 43p<br />
* [http://uk.farnell.com/fairchild-semiconductor/moc3042-m/optocoupler-z-x-triac-driver/dp/1021368?whydiditmatch=rel_3&matchedProduct=moc3042m&Ntt=moc3042m OPTOCOUPLER, Z-X] x2, 124p<br />
* [http://uk.farnell.com/nxp/bt136-600/triac-4a-600v-to-220/dp/1081316 NXP - BT136-600 - TRIAC, 4A, 600V, TO-220 ] x2, 65p <br />
<br />
====Links Needed====<br />
<br />
Please help by finding an appropriate link for the following.<br />
* A couple of stiff brushes - to make cleanup around MIll and Lathe easier. Perhaps with some chain to tie them to the table.<br />
* LEDs (varying, some good bright ones) +1 (we have loads of basic red/green/yellow etc ones)<br />
* 12V 3A solid-state relay<br />
* solid-core cable (RGBYKW) and multicore<br />
**I have some reels of wire (stranded and coax - none solid) to bring in so stick to stocking up on solid for now - artag<br />
<br />
=== Tools and equipment ===<br />
<br />
See the [[Wishlist]] page.<br />
<br />
Some tools we could regard as consumables; get cheap ones and replace them frequently. E.g.:<br />
* screw drivers<br />
<br />
=== Tool bits and pieces ===<br />
<br />
Recently retired/thrown away<br />
<br />
* spade-drills which had side of the spade drill broken sized 8, 10, 12 and 22 (2011/04)<br />
* Down to the last hacksaw iron blade (2011/04) - 410 length<br />
* Down to the last Pendulum Jigsaw saws of the non-T shape saws (2011/04)<br />
<br />
=== Consumables ===<br />
<br />
We're running low on: <br />
* Logic chips. I think the 74HCT series is a reasonable place to start, but I'm not an expert here.<br />
* Some banaplugs or already wired up banaplug wires in the usual colours and length. <br />
<br />
See also: [[Inventory#Stocked components]].</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Components&diff=13501Components2011-04-12T15:48:26Z<p>Mars: /* Requests */</p>
<hr />
<div>The Hackspace carries a range of electronic (and other) components in stock. As a rule, members can use anything for free, as long as the cost is less than £1. However, if you're using more than £5-£10 worth of components a month, we'd appreciate a donation to cover those costs.<br />
<br />
==Purchasing==<br />
'''Please include a link to the item, preferably from Farnell, or it won't be ordered.'''<br />
<br />
If you're a member of the space we'll happily order components for you and take advantage of bulk discounts/free shipping. If the component you request is cheap, we may order more than you need and bring it into stock in the space (if that's the case, then it's free as above).<br />
<br />
===Requests===<br />
* [http://uk.farnell.com/arduino/a000046/board-arduino-uno/dp/1848687 Arduinos] (we should probably get these from Earthshine, but our budget is a bit tight to stretch to them currently -[[User:Russ|Russ]])<br />
* Miniature trimming potentiometers<br />
** [http://uk.farnell.com/tyco-electronics-citec/cb10lv103m/trimmer-top-adjust-10k/dp/1227539?Ntt=1227539 10K]<br />
** [http://uk.farnell.com/tyco-electronics-citec/cb10lv104m/trimmer-top-adjust-100k/dp/1227542?Ntt=1227542 100K]<br />
** I have large numbers of multiturn trimpots ([http://uk.farnell.com/bourns/3005p-1-103/trimmer-1-turn-10kr-1w/dp/1612602 like this]) and there should already be some in the space. I can bring more if they're all gone, but check first - it may be that people don't realise that's what they are, or all the most useful values have been used up. Multiturns are in most respects better than single-turn, and cost silly money but these are free - artag.<br />
* [http://uk.farnell.com/texas-instruments/cd4093be/ic-4000-cmos-4093-dip14-18v/dp/1106117 4093] (four NAND Schmitt Triggers in one chip, useful for e.g. polyphonic square wave oscillators) (now UK stock)<br />
* [http://uk.farnell.com/on-semiconductor/mc14017bcpg/ic-4000-cmos-4017-dip16-15v/dp/9666621 4017B] ("decade counter"/10-step counter, useful for sequencers) (now UK stock)<br />
* [http://uk.farnell.com/jsp/search/productdetail.jsp?CMP=i-ddd7-00001003&sku=1013948 4050N] level shifter<br />
* [http://uk.farnell.com/jsp/search/productdetail.jsp?CMP=i-ddd7-00001003&sku=1439387 MCP23008] I<sup>2</sup>C IO expander<br />
* [http://uk.farnell.com/texas-instruments/na555p/ic-precision-timer-8-dip/dp/1755011 555] and [http://uk.farnell.com/texas-instruments/na556n/ic-precision-timer-dual-14-dip/dp/1755012 556] timers. These are generally useful, we should always keep a few in stock.<br />
* Socket cap screws, nuts, washers:<br />
** [http://uk.farnell.com/tr-fasteners/m310-sohtcss100/screw-socket-cap-m3x10/dp/1419603 M3X10 x 100]<br />
** [http://uk.farnell.com/tr-fasteners/m316-sohtcss100/screw-socket-cap-m3x16/dp/1419605 M3X16 x 100]<br />
** [http://uk.farnell.com/roebuck/pfp1323/rbk-skt-cap-screw-m3x20-pk-100/dp/8835578 M3X20 x 100]<br />
** [http://uk.farnell.com/tr-fasteners/m325-sohtcss100/screw-socket-cap-m3x25/dp/1419607 M3X25 x 100]<br />
** [http://uk.farnell.com/tr-fasteners/m330-sohtcss100/screw-socket-cap-m3x30/dp/1419608 M3X30 x 100]<br />
** [http://uk.farnell.com/duratool/m3-hfst-z100/full-nut-steel-bzp-m3/dp/1419447 M3 nut x 100] x 6<br />
** [http://uk.farnell.com/duratool/d01100/washer-form-a-bzp-m3/dp/1623987 M3 washer x 100] x 5<br />
** [http://uk.farnell.com/duratool/d01133/spr-washer-s-coil-bzp-m3/dp/1624024 M3 spring washer x 100] x 1<br />
** General box of various M2-M10 nuts, bolts and washers. - RS Components 200-9841 and/or 524-095; 200-9778 and 200-9784, 849-423<br />
* Capacitors:<br />
** [http://uk.farnell.com/jsp/search/productdetail.jsp?sku=9411887 0.1&#181;F]<br />
** [http://uk.farnell.com/jsp/search/productdetail.jsp?CMP=i-ddd7-00001003&sku=1854832 0.39&#181;F]<br />
** 0.22&#181;F<br />
** [http://uk.farnell.com/jsp/search/productdetail.jsp?sku=1457606 0.47&#181;F]<br />
** [http://uk.farnell.com/jsp/search/productdetail.jsp?CMP=i-ddd7-00001003&sku=1165543 1&#181;F] (small)<br />
** 2.2&#181;F<br />
** 10&#181;F<br />
** 22&#181;F<br />
** 100&#181;F<br />
** 22pF pls!<br />
** [http://uk.farnell.com/jsp/search/productdetail.jsp?sku=9451099 220&#181;F]<br />
* Tools:<br />
** [http://cgi.ebay.co.uk/Digital-Multimeter-Tester-Test-Leads-Multi-Meter-/380320738345#ht_1781wt_989 Cheap multimeter] (eBay)<br />
** [http://uk.farnell.com/duratool/pl-501/cutter-micro-5/dp/1156001 Wire cutters]<br />
* Prototyping:<br />
** [http://cgi.ebay.co.uk/Solderless-Breadboard-Jumper-Cable-Wire-Kit-APPROX-130-/280619888517 Jumper wires] (eBay) - the ones we have are running low and are not the easiest to insert.<br />
** [http://uk.farnell.com/jsp/search/productdetail.jsp?sku=329538&CMP=i-bf9f-00001000 Spot face cutter]<br />
** [http://www.rapidonline.com/Tools-Fasteners-Production-Equipment/PCB-Equipment/Prototyping-Boards/Protobloc-2-protyping-breadboard/29459/kw/breadboard Breadboard] (Rapid)<br />
** [http://www.rapidonline.com/productinfo.aspx?tier1URL=Cables-Connectors&tier2URL=Connectors-Single-Pole&tier3URL=4mm-Connectors&tier4URL=4mm-Test-leads&moduleno=63910# Banana leads] (Rapid)<br />
** [http://uk.farnell.com/txc/9b-16-000meej-b/xtal-16-000mhz-18pf-hc-49s/dp/1842217 16MHz crystals]<br />
<br />
===Personal requests===<br />
Alex: <br />
* [http://uk.farnell.com/texas-instruments/cd4017be/counter-multiplier-divider-logic/dp/1781086 Decade counter ICs] x 2 <br />
* [http://uk.farnell.com/texas-instruments/sn74ac14n/ic-inverter-schmitt-trigger/dp/1470853 Hex inverting Schmitt trigger ICs] x2<br />
<br />
AntLoom<br />
* [http://uk.farnell.com/fairchild-semiconductor/h11a1-m/optocoupler-transistor-o-p/dp/1021358?whydiditmatch=rel_3&matchedProduct=h11a1m&Ntt=h11a1m OPTOCOUPLER] x 2, 43p<br />
* [http://uk.farnell.com/fairchild-semiconductor/moc3042-m/optocoupler-z-x-triac-driver/dp/1021368?whydiditmatch=rel_3&matchedProduct=moc3042m&Ntt=moc3042m OPTOCOUPLER, Z-X] x2, 124p<br />
* [http://uk.farnell.com/nxp/bt136-600/triac-4a-600v-to-220/dp/1081316 NXP - BT136-600 - TRIAC, 4A, 600V, TO-220 ] x2, 65p <br />
<br />
====Links Needed====<br />
<br />
Please help by finding an appropriate link for the following.<br />
* A couple of stiff brushes - to make cleanup around MIll and Lathe easier. Perhaps with some chain to tie them to the table.<br />
* LEDs (varying, some good bright ones) +1 (we have loads of basic red/green/yellow etc ones)<br />
* 12V 3A solid-state relay<br />
* solid-core cable (RGBYKW) and multicore<br />
**I have some reels of wire (stranded and coax - none solid) to bring in so stick to stocking up on solid for now - artag<br />
<br />
=== Tools and equipment ===<br />
<br />
See the [[Wishlist]] page.<br />
<br />
Some tools we could regard as consumables; get cheap ones and replace them frequently. E.g.:<br />
* screw drivers<br />
<br />
=== Tool bits and pieces ===<br />
<br />
Recently retired/thrown away<br />
<br />
* spade-drills which had side of the spade drill broken sized 8, 10, 12 and 22 (2011/04)<br />
* Down to the last hacksaw iron blade (2011/04) - 410 length<br />
* Down to the last Pendulum Jigsaw saws of the non-T shape saws (2011/04)<br />
<br />
=== Consumables ===<br />
<br />
We're running low on: <br />
* Logic chips. I think the 74HCT series is a reasonable place to start, but I'm not an expert here.<br />
* Some banaplugs or already wired up banaplug wires in the usual colours and length. <br />
<br />
See also: [[Inventory#Stocked components]].</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=NazrulPCs&diff=13161NazrulPCs2011-04-04T08:41:46Z<p>Mars: </p>
<hr />
<div>31/3 2011 a number of PCs were rescued from a workspace across the road.<br />
<br />
Most of them are up for grabs, 1 or 2 may be repurposed for the Hackspace.<br />
If you would like one, please put your name next to it on the inventory list. If you have other plans or want parts of one, please write that down as well.<br />
<br />
Dell Dimension [http://en.wikipedia.org/wiki/Dell_Dimension specs]:<br />
* 4x 2400 (2 taken /mars)<br />
* 1x 2300<br />
* 1x 2350<br />
* <s>2x 4550</s> (1 taken /mars) (1 taken - Sci )<br />
* 1x 8100 (''if no one wants the whole machine'', interested in weird RIMM memory - Sci)<br />
* <s>1x 5000</s> 3GHz P4 with 1 GB of Ram 160GB sata harddisk. Currently being used as a replacement for difference in the main room.<br />
Dell Optiplex:<br />
* <s>1x GX260</s> (taken /mars)<br />
* 1x GX240<br />
Other PC towers:<br />
* 2x generic, beige.<br />
<br />
Note: you will have to make sure to wipe any drives clean of all content!<br />
<br />
'''Please leave the mentioned video capture cards in the space, we could really use them for cameras. --jonty. I've extracted a video capture card. It appears to be a [http://www.linuxtv.org/wiki/index.php/Conexant_Fusion_878A| Conexant Fusion ] based board. In my box.--[[User:Eb4890|Eb4890]] 14:50, 31 March 2011 (UTC)'''<br />
<br />
All 3 video capture cards have vanished, i wanted one if there are any spare! --[[User:JasperWallace|JasperWallace]] 18:08, 31 March 2011 (UTC)<br />
<br />
Preferably whole machines should be reused, rather than making a box unusable by stripping it e.g. for memory.<br />
<br />
On Monday 4 April any unclaimed machines will be taken to charity, probably either [http://www.computeraid.org Computer Aid], [http://www.frponline.org.uk/html/frp_reuse_centre.html Forest Recycling Centre] or [http://www.ecocomputersystems.org.uk/ Eco computer systems].</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=NazrulPCs&diff=13078NazrulPCs2011-04-02T23:26:33Z<p>Mars: </p>
<hr />
<div>31/3 2011 a number of PCs were rescued from a workspace across the road.<br />
<br />
Most of them are up for grabs, 1 or 2 may be repurposed for the Hackspace.<br />
If you would like one, please put your name next to it on the inventory list. If you have other plans or want parts of one, please write that down as well.<br />
<br />
Dell Dimension [http://en.wikipedia.org/wiki/Dell_Dimension specs]:<br />
* 4x 2400 (2 taken /mars)<br />
* 1x 2300<br />
* 1x 2350<br />
* 2x 4550 (1 taken /mars)<br />
* 1x 8100 (''if no one wants the whole machine'', interested in weird RIMM memory - Sci)<br />
* 1x 5000 3GHz P4 with 1 GB of Ram 160GB sata harddisk. Currently being used as a replacement for difference in the main room.<br />
Dell Optiplex:<br />
* 1x GX260 (taken /mars)<br />
* 1x GX240<br />
Other PC towers:<br />
* 2x generic, beige.<br />
<br />
'''Please leave the mentioned video capture cards in the space, we could really use them for cameras. --jonty. I've extracted a video capture card. It appears to be a [http://www.linuxtv.org/wiki/index.php/Conexant_Fusion_878A| Conexant Fusion ] based board. In my box.--[[User:Eb4890|Eb4890]] 14:50, 31 March 2011 (UTC)'''<br />
<br />
All 3 video capture cards have vanished, i wanted one if there are any spare! --[[User:JasperWallace|JasperWallace]] 18:08, 31 March 2011 (UTC)<br />
<br />
Preferably whole machines should be reused, rather than making a box unusable by stripping it e.g. for memory.<br />
<br />
On Monday 4 April any unclaimed machines will be taken to charity, probably either [http://www.computeraid.org Computer Aid], [http://www.frponline.org.uk/html/frp_reuse_centre.html Forest Recycling Centre] or [http://www.ecocomputersystems.org.uk/ Eco computer systems].</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=NazrulPCs&diff=13074NazrulPCs2011-04-02T21:37:19Z<p>Mars: </p>
<hr />
<div>31/3 2011 a number of PCs were rescued from a workspace across the road.<br />
<br />
Most of them are up for grabs, 1 or 2 may be repurposed for the Hackspace.<br />
If you would like one, please put your name next to it on the inventory list. If you have other plans or want parts of one, please write that down as well.<br />
<br />
Dell Dimension [http://en.wikipedia.org/wiki/Dell_Dimension specs]:<br />
* 4x 2400 (3 requested for south london community project /mars)<br />
* 1x 2300<br />
* 1x 2350<br />
* 2x 4550 (1 taken /mars)<br />
* 1x 8100 (''if no one wants the whole machine'', interested in weird RIMM memory - Sci)<br />
* 1x 5000 3GHz P4 with 1 GB of Ram 160GB sata harddisk. Currently being used as a replacement for difference in the main room.<br />
Dell Optiplex:<br />
* 1x GX260<br />
* 1x GX240<br />
Other PC towers:<br />
* 2x generic, beige.<br />
<br />
'''Please leave the mentioned video capture cards in the space, we could really use them for cameras. --jonty. I've extracted a video capture card. It appears to be a [http://www.linuxtv.org/wiki/index.php/Conexant_Fusion_878A| Conexant Fusion ] based board. In my box.--[[User:Eb4890|Eb4890]] 14:50, 31 March 2011 (UTC)'''<br />
<br />
All 3 video capture cards have vanished, i wanted one if there are any spare! --[[User:JasperWallace|JasperWallace]] 18:08, 31 March 2011 (UTC)<br />
<br />
Preferably whole machines should be reused, rather than making a box unusable by stripping it e.g. for memory.<br />
<br />
On Monday 4 April any unclaimed machines will be taken to charity, probably either [http://www.computeraid.org Computer Aid], [http://www.frponline.org.uk/html/frp_reuse_centre.html Forest Recycling Centre] or [http://www.ecocomputersystems.org.uk/ Eco computer systems].</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=NazrulPCs&diff=12801NazrulPCs2011-03-31T10:03:59Z<p>Mars: </p>
<hr />
<div>31/3 2011 a number of PCs were rescued from a workspace across the road.<br />
<br />
Most of them are up for grabs, 1 or 2 may be repurposed for the Hackspace.<br />
If you would like one, please put your name next to it on the inventory list. If you have other plans or want parts of one, please write that down as well.<br />
<br />
Dell Dimension [http://en.wikipedia.org/wiki/Dell_Dimension specs]:<br />
* 4x 2400 (3 requested for south london community project /mars)<br />
* 1x 2300<br />
* 1x 2350<br />
* 2x 4550<br />
* 1x 8100<br />
* 1x 5000<br />
Dell Optiplex:<br />
* 1x GX260<br />
* 1x GX240<br />
Other PC towers:<br />
* 2x generic, beige.<br />
<br />
<br />
Preferably whole machines should be reused, rather than making a box unusable by stripping it e.g. for memory.<br />
<br />
On Monday 4 April any unclaimed machines will be taken to charity, probably either [http://www.computeraid.org Computer Aid], [http://www.frponline.org.uk/html/frp_reuse_centre.html Forest Recycling Centre] or [http://www.ecocomputersystems.org.uk/ Eco computer systems].</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=NazrulPCs&diff=12799NazrulPCs2011-03-31T09:44:10Z<p>Mars: </p>
<hr />
<div>31/3 2011 a number of PCs were rescued from a workspace across the road.<br />
<br />
Most of them are up for grabs, 1 or 2 may be repurposed for the Hackspace.<br />
If you would like one, please put your name next to it on the inventory list. If you have other plans or want parts of one, please write that down as well.<br />
<br />
Dell Dimension [http://en.wikipedia.org/wiki/Dell_Dimension specs]:<br />
* 4x 2400 (2 wanted for south london community project /mars)<br />
* 1x 2300<br />
* 1x 2350<br />
* 2x 4550<br />
* 1x 8100<br />
* 1x 5000<br />
Dell Optiplex:<br />
* 1x GX260<br />
* 1x GX240<br />
Other PC towers:<br />
* 2x generic, beige.<br />
<br />
<br />
Preferably whole machines should be reused, rather than making a box unusable by stripping it e.g. for memory.<br />
<br />
On Monday 4 April any unclaimed machines will be taken to charity, probably either [http://www.computeraid.org Computer Aid], [http://www.frponline.org.uk/html/frp_reuse_centre.html Forest Recycling Centre] or [http://www.ecocomputersystems.org.uk/ Eco computer systems].</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=NazrulPCs&diff=12797NazrulPCs2011-03-31T09:40:53Z<p>Mars: </p>
<hr />
<div>31/3 2011 a number of PCs were rescued from a workspace across the road.<br />
<br />
Most of them are up for grabs, 1 or 2 may be repurposed for the Hackspace.<br />
If you would like one, please put your name next to it on the inventory list. If you have other plans or want parts of one, please write that down as well.<br />
<br />
Dell Dimension:<br />
* 4x 2400 (2 wanted for south london community project /mars)<br />
* 1x 2300<br />
* 1x 2350<br />
* 2x 4550<br />
* 1x 8100<br />
* 1x 5000<br />
Dell Optiplex:<br />
* 1x GX260<br />
* 1x GX240<br />
Other PC towers:<br />
* 2x generic, beige.<br />
<br />
<br />
Preferably whole machines should be reused, rather than making a box unusable by stripping it e.g. for memory.<br />
<br />
On Monday 4 April any unclaimed machines will be taken to charity, probably either [http://www.computeraid.org Computer Aid], [http://www.frponline.org.uk/html/frp_reuse_centre.html Forest Recycling Centre] or [http://www.ecocomputersystems.org.uk/ Eco computer systems].</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=NazrulPCs&diff=12796NazrulPCs2011-03-31T09:15:29Z<p>Mars: </p>
<hr />
<div>31/3 2011 a number of PCs were rescued from a workspace across the road.<br />
<br />
Most of them are up for grabs, 1 or 2 may be repurposed for the Hackspace.<br />
If you would like one, please put your name next to it on the inventory list. If you have other plans or want parts of one, please write that down as well.<br />
<br />
Dell Dimension:<br />
* 4x 2400<br />
* 1x 2300<br />
* 1x 2350<br />
* 2x 4550<br />
* 1x 8100<br />
* 1x 5000<br />
Dell Optiplex:<br />
* 1x GX260<br />
* 1x GX240<br />
Other PC towers:<br />
* 2x generic, beige.<br />
<br />
<br />
Preferably whole machines should be reused, rather than making a box unusable by stripping it e.g. for memory.<br />
<br />
On Monday 4 April any unclaimed machines will be taken to charity, probably either [http://www.computeraid.org Computer Aid], [http://www.frponline.org.uk/html/frp_reuse_centre.html Forest Recycling Centre] or [http://www.ecocomputersystems.org.uk/ Eco computer systems].</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=NazrulPCs&diff=12795NazrulPCs2011-03-31T09:12:17Z<p>Mars: </p>
<hr />
<div>31/3 2011 a number of PCs were rescued from a workspace across the road.<br />
<br />
Most of them are up for grabs, 1 or 2 may be repurposed for the Hackspace.<br />
If you would like one, please put your name next to it on the inventory list.<br />
<br />
Dell Dimension:<br />
* 4x 2400<br />
* 1x 2300<br />
* 1x 2350<br />
* 2x 4550<br />
* 1x 8100<br />
* 1x 5000<br />
Dell Optiplex:<br />
* 1x GX260<br />
* 1x GX240<br />
Other PC towers:<br />
* 2x generic, beige.<br />
<br />
<br />
Preferably whole machines should be reused, rather than making a box unusable by stripping it e.g. for memory.<br />
<br />
On Monday 4 April any unclaimed machines will be taken to charity, probably either [http://www.computeraid.org Computer Aid], [http://www.frponline.org.uk/html/frp_reuse_centre.html Forest Recycling Centre] or [http://www.ecocomputersystems.org.uk/ Eco computer systems].</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=NazrulPCs&diff=12794NazrulPCs2011-03-31T08:59:01Z<p>Mars: Created page with "31/3 2011 a number of PCs were rescued from a workspace across the road. Most of them are up for grabs, 1 or 2 may be repurposed for the Hackspace. If you would like one, please..."</p>
<hr />
<div>31/3 2011 a number of PCs were rescued from a workspace across the road.<br />
<br />
Most of them are up for grabs, 1 or 2 may be repurposed for the Hackspace.<br />
If you would like one, please put your name next to it on the inventory list.<br />
<br />
Dell Dimension:<br />
* 4x 2400<br />
* 1x 2300<br />
* 1x 2350<br />
* 2x 4550<br />
* 1x 8100<br />
* 1x 5000<br />
Dell Optiplex:<br />
* 1x GX260<br />
* 1x GX240<br />
Other PC towers:<br />
* 2x generic, beige.<br />
<br />
<br />
Preferably whole machines should be reused, rather than making a box unusable by stripping it for memory.<br />
<br />
On Monday 4 April any unclaimed machines will be taken to charity, probably either [http://www.computeraid.org Computer Aid], [http://www.frponline.org.uk/html/frp_reuse_centre.html Forest Recycling Centre] or [http://www.ecocomputersystems.org.uk/ Eco computer systems].</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=SwapShop&diff=12210SwapShop2011-03-22T11:04:54Z<p>Mars: /* User:mars */</p>
<hr />
<div>If you have anything you no longer want, list it here, either for free, swap or sale. You can also list the things you want.<br />
<br />
==Aden==<br />
===Sale or Swap===<br />
* DVB-C to firewire thingy<br />
* DVB-S card<br />
<br />
===Free===<br />
* A couple of tivos (claimed by glen)<br />
<br />
==Jonty==<br />
===Sale or swap===<br />
* 2x PCI DVB-T cards<br />
<br />
===Free===<br />
* A Dyson DC-16 handheld vacuum, with a knackered battery and no charger. Or tools.<br />
<br />
===Wants===<br />
* A crappy electric drill, at least 18V<br />
<br />
==JamesHarrison==<br />
=== Sale or Swap ===<br />
* Misc servers, no disks, Celeron/P4-era, dodgy cases, not proper server-grade things<br />
=== Wants ===<br />
(For student/community non-profit radio station - Insanity Radio 1287AM, Egham)<br />
* Any broadcast engineering/studio equipment<br />
* Microphones, amplifiers, speakers, mixers, any other sound gear<br />
* Old PCs - anything that can run Linux and make noise<br />
(For me)<br />
* Magnetic card reader/writer<br />
* Radios (ham, SW, FM, LW, MW, etc) and radio gear<br />
* Fibre networking gear (FC HBAs, NICs, switches, disk arrays)<br />
* Storage equipment - old NAS boxes, tape drives, etc (nothing under 100Gb unless it's something like a 73GB/10kRPM FC/SCSI disk)<br />
* RC/flight gear (transmitters, receivers, motors, props, ESCs)<br />
* Hot air rework/temperature controlled soldering iron<br />
<br />
==[[User:Artag|Artag]]==<br />
=== Free ===<br />
* C/Port and C/Dock for Dell C600 etc. laptops<br />
* Digital BC17F-10 cable for RL01/02<br />
<br />
=== Sale or swap ===<br />
* 3 Motorola [http://uk.rs-online.com/web/4252924.html XTN446] radios with drop-in chargers. As new.<br />
* Datron 1051 DVM and 1220 scanner (IEEE-488)<br />
* Small environmental chamber (heat, cold, but not humidity) ~50l capacity<br />
* GPS receiver modules Blox RCB-4H (I have a lot of these, and they're linked to a board that can insert the GPS location and some accelerometer data as text into a video overlay. £10)<br />
<br />
=== Wants ===<br />
<br />
* Broken Eee PC for spares, or just an Eee PC 4G (701) keyboard.<br />
* Electronics testgear, working or not<br />
* Old calculators, especially hewlett packard<br />
<br />
=== Loan ===<br />
<br />
Various stuff that I could bring to the space by arrangement, for temporary use (some of these are heavy and most would require a car trip so not trivial):<br />
<br />
*Testgear - signal generators, DVMs, counters, oscilloscopes, logic analysers, spectrum analysers, LCR measurement, PSUs, current probes etc. Ask if you're looking for something.<br />
<br />
*Mechanical - sheet folder, toggle press, die filer, power hacksaw, grinding vice, scrollsaws, MIG welder, forge/brazing hearth, bar cropper.<br />
<br />
==Mike==<br />
===FREE===<br />
* Pair of hifi speaker stands.<br />
<br />
==[[User:Srimech|Jim/srimech]]==<br />
=== Free ===<br />
* Lots of pneumatic gear - 3x 50mm bore 300mm stroke 10 bar cylinders, lots of smaller cylinders, solenoid 3-port valves, 2 carbon dioxide fire extinguishers, 10 bar regulator, 11 bar and 68 bar relief valves, 2l 16 bar buffer tank. None certified/tested, used at collector's risk!<br />
* 4x Hawker PC680 deep cycle sealed lead-acid batteries, 12V 7Ah if I recall correctly - about 8 years old but kept topped up regularly<br />
* 0.47 and 0.1 ohm resistors, 200W<br />
<br />
=== Wants ===<br />
* Revolution counter, the small kind you find in tape recorders.<br />
* Clockwork motor<br />
<br />
==alexs (find me on IRC)==<br />
===Sale or Swap===<br />
* Assembled Peggy2 (RGBW LEDs, no ATMEGA328) (If anyone desperately wants this you can probably have it for free.)<br />
* Canon EOS-350D + kit lens + Really crappy Sigma telephoto.<br />
* Various electric drills<br />
* DeWalt chop saw<br />
* Pneumatic nailgun + Compressor + Nails<br />
* GeForce 8800 GTS<br />
* 20" ViewSonic LCD monitor<br />
* A Wii.<br />
<br />
===Wants===<br />
Some sort of OBD-II adapter.<br />
Anything fun.<br />
<br />
==[[User:Teabot|Teabot / Elliot]]==<br />
===Free===<br />
* Cisco 2500 series router, 1 ethernet NTU - about 10 years old<br />
* 2 sets of car speakers - Pioneer, Goodmans<br />
<br />
==HaywardGB (find me on IRC)==<br />
===Sale===<br />
* INQ (Three Network) Mobile Phone. Offers please :)<br />
===Free===<br />
* T-Mobile USB Broadband Dongle (with pay as you go sim & E Top-up card)<br />
<br />
==AndrewBlack==<br />
===Free===<br />
<br />
* PS2 2 port KVM<br />
<br />
==Daihok (contact via email)==<br />
===Free===<br />
*800mhz Mini-ITX Board (parralel port has been removed) (claimed by aden)<br />
*PSONE LCD SCREEN, I would like this but I can't find your address anywhere, matt@hda1.co.uk<br />
*N64 + 2 controllers<br />
*Various size capacitors and resistors<br />
*TI Regulator x 2 (3.3v and 5v)<br />
*XBOX 360 mobo + Power Supply + HD Cable (useful for harvesting heatsinks and capacitors?)<br />
*100metres of medical grade clear plastic tubing (10m claimed by alexp (creature on IRC))<br />
<br />
== Alex P (creature on IRC) == <br />
=== For sale or swap ===<br />
* IBM Thinkpad floppy drive. Taken from an IBM Thinkpad T20. FRU P/N 05K9206. <br />
* Western Digital MyBook Pro 500GB. This thing tends to give me I/O errors after it's been mounted for a few days, but it's about a 50/50 chance that's down to my PC's crappy USB handling than the drive. It's got a USB2.0 and Firewire interface, so if nothing else you could use it as a smart new drive enclosure. <br />
* Brand new Acer keyboard and mouse. Came with my Acer Aspire Revo, but I'm using it as a headless server. Both are white, and still in their packaging. The mouse is optical and has a scrollwheel; the keyboard has that flat-button style that Apple keyboards have these days. It's a little smaller than standard, but not as small as a laptop keyboard. Both are USB devices.<br />
* Electric guitar. This thing's an undeniable clunker. The action is pretty shit, the electronics could do with a soldering iron to make the connections less dodgy, and the paint job is nasty. It is a body someone rescued from a skip and bolted a new neck to. But! If you wanted a cheap way to try out the guitar, or smash one up without spending too much, or try being a luthier, or just leave it lying around the house to impress girls – this is the guitar for you.<br />
<br />
=== Free ===<br />
* 3.5" internal floppy drive.<br />
* VGA cable.<br />
* 2x kettle leads (power cables).<br />
<br />
== [[User:Alexmuller|alexmuller]]== <br />
<br />
=== Free ===<br />
Email me if you want any of this:<br />
* Canon CanoScan D1250U2 scanner<br />
* Microsoft joystick (serial port)<br />
<br />
== [[User:AndyE|AndyE]]== <br />
<br />
contact via wiki user talk page<br />
<br />
=== Free ===<br />
* Matching pair of bike pedals.<br />
<br />
==Paul==<br />
===Sale or Swap===<br />
* 120gig external HDD brand new with box<br />
<br />
==Chris aka Layer1gfx==<br />
<br />
===Sale or Swap===<br />
* old Toshiba Satellite 5100 Laptop (german keyboard)<br />
* wireless USB German Keyboard <br />
* bag with cables<br />
<br />
=== Free (for hacking, spares or repair) ===<br />
* BARCLAYS PINsentry (not sure if it works)<br />
* Texas Instruments TI-30 eco RS (some digits are not shown properly)<br />
<br />
=== Free to use for all (but please don't hack) ===<br />
* Scanner CanoScan LIDE 30 (USB)<br />
<br />
===Wants===<br />
* WACOM Graphic Tablet (used or new - please make your offer)<br />
<br />
<br />
==Catherine aka [[User:Liedra|Liedra]]==<br />
<br />
===Sale, swap, or something===<br />
* Power Plant herb growing hydroponic system thingy, with all the bits (inc. liquid food). You can see an overview of it here: http://www.devicedaily.com/gadgets/power-plant-herb-garden-hydroponically-grows-kitchen-herbs.html<br />
I haven't managed to get it to work properly - the seeds either sprouted and died after about a week of growing, or just rotted away. If you feel like you have a greener thumb or would like to play around with the insides (there's a small pump, water sprayer, etc.) I'd be happy to get rid of it for £15, or if you can think of a super awesome project that could use it but don't have much cash let me know your idea and if it's awesome enough I'll probably just give it to you :-) Alternately, if you can work out why my attempts at growing basil and spinach have failed so badly that'd be pretty awesome. Alter-alternately, if you want to set it up for the hackspace to grow things inside (and maintain it), have it for free!<br />
<br />
<br />
== [[User:mars|Martin K]] ==<br />
=== Sale or Swap ===<br />
* 2x HP STORAGEWORKS FCA2214 Fibrechannel host adaptor cards<br />
* Compaq StorageWorks Raid Array RA4100 for 12x SCSI SCA drives.<br />
* AMI Megaraid Series 467 1500 2-channel SCSI RAID Controller<br />
* 2x 1Gb RAM from a 4,1 Macbook Pro<br />
* 1u Server B2882G28S2H, Tyan Transport GX28 with dual Opteron 2.6Ghz, 2x SATA hd's<br />
* 2x HP Secure Web Console J3591A<br />
* shitloads of lightbulbs!<br />
<br />
=== Wants ===<br />
Any musical equipment, old synths, organs (donors welcome!), audio gear, wind instruments...</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=SwapShop&diff=12209SwapShop2011-03-22T11:03:06Z<p>Mars: </p>
<hr />
<div>If you have anything you no longer want, list it here, either for free, swap or sale. You can also list the things you want.<br />
<br />
==Aden==<br />
===Sale or Swap===<br />
* DVB-C to firewire thingy<br />
* DVB-S card<br />
<br />
===Free===<br />
* A couple of tivos (claimed by glen)<br />
<br />
==Jonty==<br />
===Sale or swap===<br />
* 2x PCI DVB-T cards<br />
<br />
===Free===<br />
* A Dyson DC-16 handheld vacuum, with a knackered battery and no charger. Or tools.<br />
<br />
===Wants===<br />
* A crappy electric drill, at least 18V<br />
<br />
==JamesHarrison==<br />
=== Sale or Swap ===<br />
* Misc servers, no disks, Celeron/P4-era, dodgy cases, not proper server-grade things<br />
=== Wants ===<br />
(For student/community non-profit radio station - Insanity Radio 1287AM, Egham)<br />
* Any broadcast engineering/studio equipment<br />
* Microphones, amplifiers, speakers, mixers, any other sound gear<br />
* Old PCs - anything that can run Linux and make noise<br />
(For me)<br />
* Magnetic card reader/writer<br />
* Radios (ham, SW, FM, LW, MW, etc) and radio gear<br />
* Fibre networking gear (FC HBAs, NICs, switches, disk arrays)<br />
* Storage equipment - old NAS boxes, tape drives, etc (nothing under 100Gb unless it's something like a 73GB/10kRPM FC/SCSI disk)<br />
* RC/flight gear (transmitters, receivers, motors, props, ESCs)<br />
* Hot air rework/temperature controlled soldering iron<br />
<br />
==[[User:Artag|Artag]]==<br />
=== Free ===<br />
* C/Port and C/Dock for Dell C600 etc. laptops<br />
* Digital BC17F-10 cable for RL01/02<br />
<br />
=== Sale or swap ===<br />
* 3 Motorola [http://uk.rs-online.com/web/4252924.html XTN446] radios with drop-in chargers. As new.<br />
* Datron 1051 DVM and 1220 scanner (IEEE-488)<br />
* Small environmental chamber (heat, cold, but not humidity) ~50l capacity<br />
* GPS receiver modules Blox RCB-4H (I have a lot of these, and they're linked to a board that can insert the GPS location and some accelerometer data as text into a video overlay. £10)<br />
<br />
=== Wants ===<br />
<br />
* Broken Eee PC for spares, or just an Eee PC 4G (701) keyboard.<br />
* Electronics testgear, working or not<br />
* Old calculators, especially hewlett packard<br />
<br />
=== Loan ===<br />
<br />
Various stuff that I could bring to the space by arrangement, for temporary use (some of these are heavy and most would require a car trip so not trivial):<br />
<br />
*Testgear - signal generators, DVMs, counters, oscilloscopes, logic analysers, spectrum analysers, LCR measurement, PSUs, current probes etc. Ask if you're looking for something.<br />
<br />
*Mechanical - sheet folder, toggle press, die filer, power hacksaw, grinding vice, scrollsaws, MIG welder, forge/brazing hearth, bar cropper.<br />
<br />
==Mike==<br />
===FREE===<br />
* Pair of hifi speaker stands.<br />
<br />
==[[User:Srimech|Jim/srimech]]==<br />
=== Free ===<br />
* Lots of pneumatic gear - 3x 50mm bore 300mm stroke 10 bar cylinders, lots of smaller cylinders, solenoid 3-port valves, 2 carbon dioxide fire extinguishers, 10 bar regulator, 11 bar and 68 bar relief valves, 2l 16 bar buffer tank. None certified/tested, used at collector's risk!<br />
* 4x Hawker PC680 deep cycle sealed lead-acid batteries, 12V 7Ah if I recall correctly - about 8 years old but kept topped up regularly<br />
* 0.47 and 0.1 ohm resistors, 200W<br />
<br />
=== Wants ===<br />
* Revolution counter, the small kind you find in tape recorders.<br />
* Clockwork motor<br />
<br />
==alexs (find me on IRC)==<br />
===Sale or Swap===<br />
* Assembled Peggy2 (RGBW LEDs, no ATMEGA328) (If anyone desperately wants this you can probably have it for free.)<br />
* Canon EOS-350D + kit lens + Really crappy Sigma telephoto.<br />
* Various electric drills<br />
* DeWalt chop saw<br />
* Pneumatic nailgun + Compressor + Nails<br />
* GeForce 8800 GTS<br />
* 20" ViewSonic LCD monitor<br />
* A Wii.<br />
<br />
===Wants===<br />
Some sort of OBD-II adapter.<br />
Anything fun.<br />
<br />
==[[User:Teabot|Teabot / Elliot]]==<br />
===Free===<br />
* Cisco 2500 series router, 1 ethernet NTU - about 10 years old<br />
* 2 sets of car speakers - Pioneer, Goodmans<br />
<br />
==HaywardGB (find me on IRC)==<br />
===Sale===<br />
* INQ (Three Network) Mobile Phone. Offers please :)<br />
===Free===<br />
* T-Mobile USB Broadband Dongle (with pay as you go sim & E Top-up card)<br />
<br />
==AndrewBlack==<br />
===Free===<br />
<br />
* PS2 2 port KVM<br />
<br />
==Daihok (contact via email)==<br />
===Free===<br />
*800mhz Mini-ITX Board (parralel port has been removed) (claimed by aden)<br />
*PSONE LCD SCREEN, I would like this but I can't find your address anywhere, matt@hda1.co.uk<br />
*N64 + 2 controllers<br />
*Various size capacitors and resistors<br />
*TI Regulator x 2 (3.3v and 5v)<br />
*XBOX 360 mobo + Power Supply + HD Cable (useful for harvesting heatsinks and capacitors?)<br />
*100metres of medical grade clear plastic tubing (10m claimed by alexp (creature on IRC))<br />
<br />
== Alex P (creature on IRC) == <br />
=== For sale or swap ===<br />
* IBM Thinkpad floppy drive. Taken from an IBM Thinkpad T20. FRU P/N 05K9206. <br />
* Western Digital MyBook Pro 500GB. This thing tends to give me I/O errors after it's been mounted for a few days, but it's about a 50/50 chance that's down to my PC's crappy USB handling than the drive. It's got a USB2.0 and Firewire interface, so if nothing else you could use it as a smart new drive enclosure. <br />
* Brand new Acer keyboard and mouse. Came with my Acer Aspire Revo, but I'm using it as a headless server. Both are white, and still in their packaging. The mouse is optical and has a scrollwheel; the keyboard has that flat-button style that Apple keyboards have these days. It's a little smaller than standard, but not as small as a laptop keyboard. Both are USB devices.<br />
* Electric guitar. This thing's an undeniable clunker. The action is pretty shit, the electronics could do with a soldering iron to make the connections less dodgy, and the paint job is nasty. It is a body someone rescued from a skip and bolted a new neck to. But! If you wanted a cheap way to try out the guitar, or smash one up without spending too much, or try being a luthier, or just leave it lying around the house to impress girls – this is the guitar for you.<br />
<br />
=== Free ===<br />
* 3.5" internal floppy drive.<br />
* VGA cable.<br />
* 2x kettle leads (power cables).<br />
<br />
== [[User:Alexmuller|alexmuller]]== <br />
<br />
=== Free ===<br />
Email me if you want any of this:<br />
* Canon CanoScan D1250U2 scanner<br />
* Microsoft joystick (serial port)<br />
<br />
== [[User:AndyE|AndyE]]== <br />
<br />
contact via wiki user talk page<br />
<br />
=== Free ===<br />
* Matching pair of bike pedals.<br />
<br />
==Paul==<br />
===Sale or Swap===<br />
* 120gig external HDD brand new with box<br />
<br />
==Chris aka Layer1gfx==<br />
<br />
===Sale or Swap===<br />
* old Toshiba Satellite 5100 Laptop (german keyboard)<br />
* wireless USB German Keyboard <br />
* bag with cables<br />
<br />
=== Free (for hacking, spares or repair) ===<br />
* BARCLAYS PINsentry (not sure if it works)<br />
* Texas Instruments TI-30 eco RS (some digits are not shown properly)<br />
<br />
=== Free to use for all (but please don't hack) ===<br />
* Scanner CanoScan LIDE 30 (USB)<br />
<br />
===Wants===<br />
* WACOM Graphic Tablet (used or new - please make your offer)<br />
<br />
<br />
==Catherine aka [[User:Liedra|Liedra]]==<br />
<br />
===Sale, swap, or something===<br />
* Power Plant herb growing hydroponic system thingy, with all the bits (inc. liquid food). You can see an overview of it here: http://www.devicedaily.com/gadgets/power-plant-herb-garden-hydroponically-grows-kitchen-herbs.html<br />
I haven't managed to get it to work properly - the seeds either sprouted and died after about a week of growing, or just rotted away. If you feel like you have a greener thumb or would like to play around with the insides (there's a small pump, water sprayer, etc.) I'd be happy to get rid of it for £15, or if you can think of a super awesome project that could use it but don't have much cash let me know your idea and if it's awesome enough I'll probably just give it to you :-) Alternately, if you can work out why my attempts at growing basil and spinach have failed so badly that'd be pretty awesome. Alter-alternately, if you want to set it up for the hackspace to grow things inside (and maintain it), have it for free!<br />
<br />
<br />
== [[User:mars]] ==<br />
=== Sale or Swap ===<br />
* 2x HP STORAGEWORKS FCA2214 Fibrechannel host adaptor cards<br />
* Compaq StorageWorks Raid Array RA4100 for 12x SCSI SCA drives.<br />
* AMI Megaraid Series 467 1500 2-channel SCSI RAID Controller<br />
* 2x 1Gb RAM from a 4,1 Macbook Pro<br />
* 1u Server B2882G28S2H, Tyan Transport GX28 with dual Opteron 2.6Ghz, 2x SATA hd bays<br />
* 2x HP Secure Web Console J3591A<br />
* shitloads of lightbulbs!<br />
<br />
<br />
=== Wants ===<br />
Any musical equipment, old synths, organs (any donors out there?), audio gear, wind instruments...</div>Marshttps://wiki.london.hackspace.org.uk/w/index.php?title=Pledge:_Welding_Equipment&diff=6346Pledge: Welding Equipment2010-11-17T02:03:16Z<p>Mars: /* Pledges */</p>
<hr />
<div>''Quite a few people think it would be handy to join more heavy weight bits of metal than you can manage with a soldering iron or brazing torch.''<br />
<br />
==News==<br />
<br />
A welder has been donated \o/.<br />
<br />
We now need to get moving on the essential PPE, and determine how to provide a supply of shielding gas (see options below).<br />
<br />
<br />
==The items==<br />
<br />
* A small MIG welder<br />
* Personal Protective equipment (At least 1 mask, apron, gloves)<br />
* Additional stocks of wire & gas for welding with.<br />
<br />
The PPE is likely to set us back as much as a small welder initially, but it's entirely reuseable if/when we get a larger welder, and entirely essential. (Setting yourself on fire is not amusing - I speak from experience here)<br />
<br />
I think we also need a ceiling-mounted welding curtain to protect other peoples' eyes - these seem to be about £50-60. We'd probably want to curtain off the far corner in the dirty shop. [[User:Russ|Russ]] 10:29, 22 July 2010 (UTC)<br />
<br />
* Not sure what welder was targeted but [http://www.machinemart.co.uk/shop/categories/search/diy-mig-welders these] are 250-300 for anything above the really minimal. It's hardly ever worth buying at the bottom of the range .. though an offer at Lidl, Aldi, Costco etc. might be worth looking out for if this welder is only a stepping stone to an industrial one.<br />
<br />
=== Things we have already ===<br />
<br />
* regulator for disposable gas bottles, with welder<br />
* spare tips etc.<br />
* gauntlets [http://www.welduk.com/Details.asp?ProductID=604]<br />
* angle grinder<br />
* simple (non-automatic) face shield<br />
* a couple of bottles of gas (in the drawers under the mill)<br />
<br />
=== Things we are planning to buy ===<br />
<br />
* [http://www.machinemart.co.uk/shop/product/details/ws1-standard-welding-screen Welding screen] - £105<br />
* [http://www.welduk.com/Results1.asp?Category=49 Automatic head shield, variable] - £50<br />
* [http://www.welduk.com/Details.asp?ProductID=374 Welding Leather Apron] - £9 x 2<br />
* [http://www.machinemart.co.uk/shop/product/details/135te-turbo-mig-welder Mig welder] - £258<br />
<br />
* '''Total Target''' - £431<br />
<br />
=== Extra things we may need / consumables ===<br />
<br />
* gas [http://spreadsheets.google.com/pub?key=tAo9x2FO_qy-e-_i0uhGspA&output=html price comparison]<br />
**[http://www.welduk.com/Details.asp?ProductID=89 small disposable] - approximately 5 mins use for ~ £15 <br />
**[http://www.welduk.com/Details.asp?ProductID=664 welduk refillable] - approximately 3.5 hours use for ~ £40 + ~ £40 carriage + initial purchase of cylinder ~ £90 <br />
**[http://www.albeegascylinders.com/suppliers.php albee / air liquide] - approximately 3.5 hours use for ~ £40 + initial purchase of cylinder ~ £100 if you can find a local supplier<br />
**[http://www.weldinggases.co.uk/index.php?act=viewCat&catId=1 Another similar alternative]<br />
**[http://www.mig-welding.co.uk/forum/showthread.php?t=21412 rental] from the bastards at BOC. Approx £70 per year bottle rental and £30 per Y-size (5000l, ~7 hours) refill<br />
** pub gas - needs a friendly landlord to divert a bottle of CO2. Cost unknown. Do NOT use Nitrogen/C02 mix. Note that C02 will give a dirtier weld than Argon/C02 mix but should be a lot cheaper for practice purposes<br />
* apron http://www.welduk.com/Details.asp?ProductID=374<br />
* static masks for onlookers / trainees http://www.welduk.com/Details.asp?ProductID=102<br />
* bucket of sand<br />
* clamps etc. [http://www.welduk.com/Details.asp?ProductID=609] [http://www.welduk.com/Details.asp?ProductID=389] I have some of those clamps which I will drop into the space once I find them. I also have magnetic angle blocks, again they will need finding! --[[User:Nigle|Nigle]] 21:13, 10 August 2010 (UTC)<br />
<br />
==Pledges==<br />
* £50 --[[User:t0m|t0m]] 09:27, 22 July 2010 (UTC)<br />
* £20 --[[User:Russ|Russ]] 10:29, 22 July 2010 (UTC)<br />
* £20 --[[User:Harry|Harry]] 10:39, 22 July 2010 (UTC)<br />
* £20 --[[User:Jonty|Jonty]] 10:51, 22 July 2010 (UTC)<br />
* £100 -- Steff 09:57, 22 July 2010 (UTC)<br />
* £20 --[[User:Solexious|Solexious]] 23:23, 25 July 2010 (UTC)<br />
* £20 --[[User:Teabot|Teabot]] 17:06, 26 July 2010 (UTC)<br />
* £40 --[[User:V21|V21]] 08:49, 31 August 2010 (UTC)<br />
* £20 --[[User:zts|zts]] 22:31, 12 October 2010 (UTC)<br />
* £20 --[[User:tobycatlin|tobycatlin]] 09:11, 13 October 2010 (UTC)<br />
* £20 --[[User:SamLR|SamLR]] 13:39, 13 October 2010 (UTC)<br />
* £20 --[[User:amx109|amx109]] 13:41, 13th October 2010 (UTC)<br />
* £20 --[[User:tomwj|tomwj]] 14:17, 13th October 2010 (UTC)<br />
* £20 --[[User:Olfin|Olfin]] <br />
* £20 --[[User:amc|Andy Cousins]]<br />
* £10.01 --[[User:Danielsikar|dsikar]] 23:44, 13th October 2010 (GMT+4)<br />
* £20 --[[User:mars|mars]] <br />
<br />
Running total: '''£450.01'''<br />
<br />
Approximate target: '''£450''' (inc VAT + most delivery)</div>Mars