Project:25-hpamakers-reprap: Difference between revisions

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=[http://eludevyvema.co.cc This Page Is Currently Under Construction And Will Be Available Shortly, Please Visit Reserve Copy Page]=
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=[http://eludevyvema.co.cc CLICK HERE]=
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[[Projects]]
[[Projects]]


Other similar projects [http://icrobotics.co.uk/wiki/index.php?title=RepRap icrobotics.co.uk]
Other similar projects [http://icrobotics.co.uk/wiki/index.php?title=RepRap icrobotics.co.uk]


&lt;rss&gt;http://samthetechie.blogspot.com/feeds/posts/default/-/25&lt;/rss&gt;
<rss>http://samthetechie.blogspot.com/feeds/posts/default/-/25</rss>


==Aim==
==Aim==
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===Delicious Links===
===Delicious Links===
&lt;rss&gt;http://feeds.delicious.com/v2/rss/samthetechie/25&lt;/rss&gt;
<rss>http://feeds.delicious.com/v2/rss/samthetechie/25</rss>


===3D Printer===
===3D Printer===
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The table below outlines the specifications of the machine.
The table below outlines the specifications of the machine.


{| class=&quot;wikitable&quot;
{| class="wikitable"
|- style=&quot;background-color:#999999;&quot;
|- style="background-color:#999999;"
!
!
! Metric
! Metric
|-
|-
| Model
| Model
| Reprap II: Mendel &quot;Mendel&quot;
| Reprap II: Mendel "Mendel"
|-
|-
| Technology
| Technology
| FFF (Fused Filament Fabrication)/Thermoplastic extrusion
| FFF (Fused Filament Fabrication)/Thermoplastic extrusion
|-
|-
| Price of all materials||[[Mendel materials procurement#Costing|&amp;euro;350]]
| Price of all materials||[[Mendel materials procurement#Costing|&euro;350]]
|-
|-
| Annual Service Cost||Occasional oiling = &amp;euro;5. It can print its own replacement printed parts at material cost.
| Annual Service Cost||Occasional oiling = &euro;5. It can print its own replacement printed parts at material cost.
|-
|-
| Size ||500 mm (W) x 400 mm (D) x 360 mm (H)
| Size ||500 mm (W) x 400 mm (D) x 360 mm (H)
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| Build Envelope||200 mm (W) x 200 mm (D) x 140 mm (H).
| Build Envelope||200 mm (W) x 200 mm (D) x 140 mm (H).
|-
|-
| Materials||[[PLA]], HDPE, [[ABS]] &amp; more. Uses ø 3 mm filament.
| Materials||[[PLA]], HDPE, [[ABS]] & more. Uses ø 3 mm filament.
|-
|-
| Material Cost||[[PLA]]: &amp;euro;22/kg, HDPE: &amp;euro;11/kg, [[ABS]]: &amp;euro;17/kg.
| Material Cost||[[PLA]]: &euro;22/kg, HDPE: &euro;11/kg, [[ABS]]: &euro;17/kg.
|-
|-
| Speed||15.0 cm&lt;sup&gt;3&lt;/sup&gt; per hour solid (test done for [[PLA]], similar for others).
| Speed||15.0 cm<sup>3</sup> per hour solid (test done for [[PLA]], similar for others).
|-
|-
| Accuracy||Diameter of nozzle 0.5 mm, 2 mm min. feature size, 0.1 mm positioning accuracy, layer thickness 0.3 mm
| Accuracy||Diameter of nozzle 0.5 mm, 2 mm min. feature size, 0.1 mm positioning accuracy, layer thickness 0.3 mm
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| Fair
| Fair
|-
|-
| Volume of printed parts to replicate||1110 cm&lt;sup&gt;3&lt;/sup&gt;
| Volume of printed parts to replicate||1110 cm<sup>3</sup>
|-
|-
|}
|}


(With the standard infill settings the 15.0 cm&lt;sup&gt;3&lt;/sup&gt; per hour solid extrusion rate is equivalent to a built volume rate of 19.0 cm&lt;sup&gt;3&lt;/sup&gt; per hour.)
(With the standard infill settings the 15.0 cm<sup>3</sup> per hour solid extrusion rate is equivalent to a built volume rate of 19.0 cm<sup>3</sup> per hour.)


===Consumables===
===Consumables===
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==Google Docs==
==Google Docs==
[http://spreadsheets.google.com/ccc?key=0AtPlyIZQV2PIdHRjY3VCejhXNThyMHdSa1R4N2owN1E&amp;hl=en_GB Google Doc]
[http://spreadsheets.google.com/ccc?key=0AtPlyIZQV2PIdHRjY3VCejhXNThyMHdSa1R4N2owN1E&hl=en_GB Google Doc]


==Where?==
==Where?==

Revision as of 00:16, 24 November 2010

Projects

Other similar projects icrobotics.co.uk

<rss>http://samthetechie.blogspot.com/feeds/posts/default/-/25</rss>

Aim

Get a working 3d printer. Make shit. Be awesome.

Who?

User:samthetechie

User:lamda25

User:alias

User:lhopki01

dsikar

What?

Delicious Links

<rss>http://feeds.delicious.com/v2/rss/samthetechie/25</rss>

3D Printer

[RepRap II: Mendel http://reprap.org/wiki/Mendel]

Mendel Specifications

The table below outlines the specifications of the machine.

Metric
Model Reprap II: Mendel "Mendel"
Technology FFF (Fused Filament Fabrication)/Thermoplastic extrusion
Price of all materials €350
Annual Service Cost Occasional oiling = €5. It can print its own replacement printed parts at material cost.
Size 500 mm (W) x 400 mm (D) x 360 mm (H)
Weight 7.0 kg.
Build Envelope 200 mm (W) x 200 mm (D) x 140 mm (H).
Materials PLA, HDPE, ABS & more. Uses ø 3 mm filament.
Material Cost PLA: €22/kg, HDPE: €11/kg, ABS: €17/kg.
Speed 15.0 cm3 per hour solid (test done for PLA, similar for others).
Accuracy Diameter of nozzle 0.5 mm, 2 mm min. feature size, 0.1 mm positioning accuracy, layer thickness 0.3 mm
Finish Fair
Volume of printed parts to replicate 1110 cm3

(With the standard infill settings the 15.0 cm3 per hour solid extrusion rate is equivalent to a built volume rate of 19.0 cm3 per hour.)

Consumables

Blue Decorator's Tape

PLA, HDPE, ABS Filament

Computing

Netbook with Solidworks and Reprap Host Software.

Power

Converted 300W ATX Power Supply. +12V and GND. 5A current.

Electronics

USB to TTL Adapter

Based on the FTDI FT232R.

Mendelusb2ttlconnector.jpg Fig. 1

Currently the connector is wired such: 

GND DCD# VCC TXD RXD RTS#

While the Sanguino (at least v1.0) expects: 

GND GND [USB_5V (VCC)] RXD TXD RTS#

Sanguinousb2ttl.jpg Fig. 2

From the datasheet:

Um232r.jpg Fig. 3

It can be inferred that the correct terminals on the cable in Fig. 1 should be: 

GND GND VCC TXD RXD CTS#

All said, the extruder and main motherboard (gen 3 reprap electronics) have been successfully flashed using this controller so perhaps the critical lines are in, one GND, VCC and TXD plus RXD which afaik handle the data transmission.

Motherboard

Stepper Motor Driver

Where?

Why?

How?

Development Milestones

Ordering

Obtain all the parts to make our Mendel 

 Check Parts List (27/6/10).
 Order Leftover Parts (complete 28/6/10).

Construction

Begin Construction: Build Manual Downloading and Installing RepRap on your computer 

Latest build from sourceforge.

Circuit board construction 

2.1 Soldering Opto Endstops x 3 (completed 1/7/10).
2.2 Soldering USB to Serial.
2.3 Makerbot Stock PCB for usage as Mendel Modification.
2.4 Modify ATX power supply with XLR connector (completed 1/7/10).

Microcontroller firmware installation


Mechanical construction

Electronic wiring

Testing

Check Electronic Wiring
Check Firmware
Check Mechanical Construction

Stepper Motor Drivers + Mainboard

5 Finish Testing

Commissioning

Begin printing
Make first model
Make first part
Make first set of parts

Google Docs

Google Doc

Where?

London Hackspace: http://london.hackspace.org.uk/

Why?

Because we want a 3D printer!

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