Difference between revisions of "Project:25-hpamakers-reprap"

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[[Projects]]
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==Aim==
 +
Finish construction of the printer ASAP and get it running reliably!
  
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Other similar projects [http://www.icrobotics.co.uk/wiki/index.php?title=Woody icrobotics.co.uk]
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==How?==
  
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<rss>http://samthetechie.blogspot.com/feeds/posts/default/-/25</rss>
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===Current Development Milestones===
 +
====1-Construction====
 +
[http://garyhodgson.com/reprap/prusa-mendel-visual-instructions/ Prusa Construction Guide]
  
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==Aim==
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=====PLA Parts Needed (as of 17:18 On Wed 11th May 2011)=====
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Get a working 3d printer. Make shit. Be awesome.
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1 x [https://github.com/prusajr/PrusaMendel/blob/master/stl/endstop-holder.stl Endstop Holder]
 +
 
 +
2 x [https://github.com/prusajr/PrusaMendel/blob/master/stl/pulley.stl Pulley]
 +
 
 +
4 x [https://github.com/prusajr/PrusaMendel/blob/master/stl/pla-bushing.stl PLA Bushings]
 +
 
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[https://github.com/prusajr/PrusaMendel/tree/master/stl Parent folder for the Prusa STL Files]
 +
 
 +
=====Parts Printed=====
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4 x PLA Bushings printed at 19:07 on Wed 11th May 2011 by Kal
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1.5 x  Endstop holder printed at 19:07 on Wed 11th May 2011 by Kal
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1 x Endstop holder printed on Fri 13th may 2011 by Glen
 +
 
 +
====2-Electronics====
 +
(Sam) Makerbot to Reprap PCB Adaptations.
 +
 
 +
====3-Firmware====
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(Sam)RepRap Motherboard v1.2 firmware installation.
 +
Notes:
 +
 
 +
 
 +
====4-Testing====
 +
(Sam) Check Wiring + Firmware:  Desktop-based test of all stepper motors and electronics.
 +
Notes: I am going to be flashing the firmware using an FTDI cable and then I will check our USB to serial cable.
 +
 
 +
(Kal) Check Mechanical Construction against instructions + Begin Calibrating
 +
Notes: Hey Kal, Sam here, in order to mechanically calibrate the frame I would recommend going through part 5 (page 32) of this visual guide:
 +
http://garyhodgson.com/reprap/prusa-mendel-visual-instructions/
 +
We might need to cut some more steel stock if any of the lengths are too short.
 +
 
 +
====5-Commissioning====
 +
Begin printing
 +
Make first model
 +
Make first part
 +
Make first set of parts
  
 
==Who?==
 
==Who?==
−
[[User:samthetechie]]
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[[User:samthetechie|samthetechie]]
  
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[[User:lamda25]]
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[[User:lambda25|Kal]]
  
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[[User:alias]]
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[[User:alias|alias]]
  
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[[User:lhopki01]]
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[[User:lhopki01|lhopki01]]
  
 
[[User:Danielsikar|dsikar]]
 
[[User:Danielsikar|dsikar]]
  
 
==What?==
 
==What?==
−
 
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===Delicious Links===
 
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<rss>http://feeds.delicious.com/v2/rss/samthetechie/25</rss>
 
  
 
===3D Printer===
 
===3D Printer===
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[Prusa Mendel http://reprap.org/wiki/Prusa]
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[http://reprap.org/wiki/Prusa Prusa Mendel ]
  
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I am also using a great guide that I found here: [Prusa Visual Instructions http://garyhodgson.com/reprap/prusa-mendel-visual-instructions/]
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Sam: I am constructing the printer using this really great guide: [http://garyhodgson.com/reprap/prusa-mendel-visual-instructions/ Prusa Visual Instructions ]
  
 
== Mendel Specifications ==
 
== Mendel Specifications ==
Line 83: Line 117:
  
 
==Electronics==
 
==Electronics==
 +
We are using gen3 MakerBot Electronics which have been adapted for use with Reprap using this [http://reprap.org/wiki/PCB_adaptions_for_Mendel guide]
  
 
===USB to TTL Adapter===
 
===USB to TTL Adapter===
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===Motherboard===
 
===Motherboard===
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Reprap Motherboard v1.2
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 +
===Stepper Motors + Driver Circuits===
 +
3 x Stepper Motor Driver v2.3 r1 boards
  
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===Stepper Motor Driver===
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5 x [http://store.makerbot.com/nema-17-stepper-motor.html Nema 17 Stepper Motors]
  
 
==Where?==
 
==Where?==
  
 
==Why?==
 
==Why?==
−
 
−
==How?==
 
−
 
−
===Development Milestones===
 
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====Ordering====
 
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Obtain all the parts to make our Mendel
 
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  Check Parts List (27/6/10).
 
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  Order Leftover Parts (complete 28/6/10).
 
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====Construction====
 
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Begin Construction: [http://reprap.org/wiki/Mendel_Build_Manual Build Manual]
 
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Downloading and Installing RepRap on your computer
 
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Latest build from sourceforge.
 
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Circuit board construction
 
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2.1 Soldering Opto Endstops x 3 (completed 1/7/10).
 
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2.2 Soldering USB to Serial.
 
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2.3 Makerbot Stock PCB for usage as Mendel [http://reprap.org/wiki/PCB_adaptions_for_Mendel Modification].
 
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2.4 Modify ATX power supply with XLR connector (completed 1/7/10).
 
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Microcontroller firmware installation
 
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−
 
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Mechanical construction
 
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Electronic wiring
 
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====Testing====
 
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Check Electronic Wiring
 
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Check Firmware
 
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Check Mechanical Construction
 
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Stepper Motor Drivers + Mainboard
 
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5 Finish Testing
 
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====Commissioning====
 
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Begin printing
 
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Make first model
 
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Make first part
 
−
Make first set of parts
 
  
 
==Google Docs==
 
==Google Docs==
 
[http://spreadsheets.google.com/ccc?key=0AtPlyIZQV2PIdHRjY3VCejhXNThyMHdSa1R4N2owN1E&hl=en_GB Google Doc]
 
[http://spreadsheets.google.com/ccc?key=0AtPlyIZQV2PIdHRjY3VCejhXNThyMHdSa1R4N2owN1E&hl=en_GB Google Doc]
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−
== Printed parts ==
 
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We now have the beginnings of a sorting system, to make it easy to keep track of what has been printed.
 
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[[File:Reprapprintouts.jpg|200px]]
 
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Roadmap:
 
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: 1. Add labels to front of trays, identifying components and quantities present in each tray.
 
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: 2. Add printouts (paper media) to the wall, showing parts, quantity required and assemblies.
 
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: 3. Add additional shelving to hold (bigger) assemblies.
 
  
 
==Where?==
 
==Where?==
Line 180: Line 167:
 
==Why?==
 
==Why?==
 
Because we want a 3D printer!
 
Because we want a 3D printer!
 +
 +
[[Category:Projects]]

Latest revision as of 23:56, 28 May 2013

Aim

Finish construction of the printer ASAP and get it running reliably!

How?

Current Development Milestones

1-Construction

Prusa Construction Guide

PLA Parts Needed (as of 17:18 On Wed 11th May 2011)

1 x Endstop Holder

2 x Pulley

4 x PLA Bushings

Parent folder for the Prusa STL Files

Parts Printed

4 x PLA Bushings printed at 19:07 on Wed 11th May 2011 by Kal 1.5 x Endstop holder printed at 19:07 on Wed 11th May 2011 by Kal 1 x Endstop holder printed on Fri 13th may 2011 by Glen

2-Electronics

(Sam) Makerbot to Reprap PCB Adaptations.

3-Firmware

(Sam)RepRap Motherboard v1.2 firmware installation. 

Notes:


4-Testing

(Sam) Check Wiring + Firmware: Desktop-based test of all stepper motors and electronics. 

Notes: I am going to be flashing the firmware using an FTDI cable and then I will check our USB to serial cable.

(Kal) Check Mechanical Construction against instructions + Begin Calibrating 

Notes: Hey Kal, Sam here, in order to mechanically calibrate the frame I would recommend going through part 5 (page 32) of this visual guide:
http://garyhodgson.com/reprap/prusa-mendel-visual-instructions/
We might need to cut some more steel stock if any of the lengths are too short.

5-Commissioning

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

Who?

samthetechie

Kal

alias

lhopki01

dsikar

What?

3D Printer

Prusa Mendel

Sam: I am constructing the printer using this really great guide: Prusa Visual Instructions

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

We are using gen3 MakerBot Electronics which have been adapted for use with Reprap using this guide

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

Reprap Motherboard v1.2

Stepper Motors + Driver Circuits

3 x Stepper Motor Driver v2.3 r1 boards

5 x Nema 17 Stepper Motors

Where?

Why?

Google Docs

Google Doc

Where?

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

Why?

Because we want a 3D printer!

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