Pledge: Liquid Nitrogen: Difference between revisions

From London Hackspace Wiki
mNo edit summary
No edit summary
Line 2: Line 2:
[[File:liquidnitrogen.jpeg|300px|thumb|right|Liquid Nitrogen and a bald chef with glasses looking evil]]
[[File:liquidnitrogen.jpeg|300px|thumb|right|Liquid Nitrogen and a bald chef with glasses looking evil]]


''We are looking at purchasing some Liquid Nitrogen, preferably in time for the 12/05/2013 party''
''We are looking at purchasing some Liquid Nitrogen on a rolling basis''


'''Pledge leader:''' [[User:Oni|Oni]]
'''Pledge leader:''' [[User:Oni|Oni]]
Line 17: Line 17:
==The item==
==The item==
* [http://www.mansfieldcryogenics.com www.mansfieldcryogenics.com]
* [http://www.mansfieldcryogenics.com www.mansfieldcryogenics.com]
* Basically, we want something along the lines of one Dewar as a one off delivery. We also need a set of gloves to handle the stuff.


==update==
Delivery is scheduled for the 8th of May. We are being given a set of gloves for free (which is very nice). A cage with a lock will be provided, next to the laser cutter near the window slots on the ground floor. Safety instructions will be printed and posted here, and on the mailing list in the next few days.
We didnt meet the extension pledge in time, so these who pledged for the initial one off batch are the only ones liable to pay on this pledge. If demand outstrips supply, a new extension pledge will be formed.




===Budget estimation===
===Budget estimation===
* £130.00 plus VAT per delivery up to 50 litres for the Nitrogen - '''£156'''
* Delivery every 6 weeks .. £400.00 per annum (excl.VAT)
* £??? Thermos flasks
* Delivery every 12 weeks .. £320.00 per annum (excl.VAT)
 


===Actions / Information ===
===Actions / Information ===
*[http://stores.biochem.uiowa.edu/Pages/ln2msds.htm http://stores.biochem.uiowa.edu/Pages/ln2msds.htm] -  current safety handling
*Secure a supplier for the correct gloves: [http://www.boconline.co.uk/en/products-and-supply/cryogenic-equipment/cryogenic-protection/hand-protection/hand-protection.html http://www.boconline.co.uk/en/products-and-supply/cryogenic-equipment/cryogenic-protection/hand-protection/hand-protection.html]
* At present, it is estimated that 50L of LN2 will covert to 30.5 cubic metres; around 5% of the volume of floor one.
* Check if the Dewar still has a functional vacuum
* Wheel upstairs and lock into place
* <s>Liaise with Mansfield and get a date set</s>
* Sort out a training session for these wanting to use it
* Place safety notices on cage


===Specification===
===Specification===
Line 52: Line 36:
==Pledges==
==Pledges==


Use reference '''LN2''' when paying.
Use reference '''LN2FOR2''' when paying.


* <s>£25 - [[User:Oni|Oni]]</s> - paid
* £25 - [[User:Oni|Oni]]
* <s>£10 - [[User:CaptainTerrible|CaptainTerrible]]</s> - paid
* <s>£15 - [[User:Oskarpearson|Oskar Pearson]]</s> - paid
* <s>£25 - [[Project:Biohacking|Biohackers]]</s> - paid
* £20 - [[User:Ganly|Ganly]]
* <s>£15 - [[User:JasperWallace|Jasper]]</s> - paid
* <s>£40 - [[User:Russ|Russ]] ([[User talk:Russ|talk]])</s> - paid
* <s>£20 - [[User:Sully|Sully]]</s> - paid
* <s>£10 - [[User:wyan|wyan]]</s> - paid
* <s>£25 - [[User:MattP|MattP]]</s> - paid


Running total: '''£180'''


Approximate target: '''£156 minimum, £200+  with thermos flasks, £300 + with safety gloves'''
Running total: '''£25'''


== Stretch Goal==
Approximate target: '''£384 minimum, £480 max''


Will put in for a more regular supply once orginal targert has been reached
==Still to pay from previous pledge==


* £50 -  Dean Forbes  [[User:Dean|ndlovu]]
* £20 - [[User:Ganly|Ganly]]
* £25 - [[User:Ganly|Ganly]]
* £25 - [[User:Flux|Flux]] ([[User talk:Flux|talk]])
* <s>£15 - [[User:Martin|Martin]]</s> - paid in advance.
 
Stretch Goal Running total: '''£115'''
 
Approximate target: '''£200'''

Revision as of 17:41, 15 May 2013

Liquid Nitrogen and a bald chef with glasses looking evil

We are looking at purchasing some Liquid Nitrogen on a rolling basis

Pledge leader: Oni

Maintenance: Oni

Training / safety: Oni


SAFETY AND USE

All the information for safety use can be found at Liquid_Nitrogen. READ THIS NOW - No really! I'm not even kidding!

The item


Budget estimation

  • Delivery every 6 weeks .. £400.00 per annum (excl.VAT)
  • Delivery every 12 weeks .. £320.00 per annum (excl.VAT)

Actions / Information

Specification

  • Make tasty meats
  • Make ice-cream
  • Useful for biohackers (so I'm told)!
  • Reverse Gridle
  • Shrink fitting parts
  • Work with superconductors

Pledges

Use reference LN2FOR2 when paying.


Running total: £25

Approximate target: '£384 minimum, £480 max

Still to pay from previous pledge

Retrieved from ‘https://wiki.london.hackspace.org.uk/w/index.php?title=Pledge:_Liquid_Nitrogen&oldid=33628’