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Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

OpenDelta - The Open Source Delta Printer

by JeanClaude, published

OpenDelta - The Open Source Delta Printer by JeanClaude Dec 9, 2013

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Summary

Update:
The effector now has its own fanduct. It fits ontop of this E3D-Mount
http://www.thingiverse.com/thing:291792
and the laser cutted effector plate.

The idea of this printer is to created an open source modell, that can be produced with a lasercutter and other 3d-printers. These two machines can be found in most FabLabs around the world.
Please share your version and the problems you had building it, so that we all can learn from it.
I will make a couple of videos, that show the assembly of the frame, the belt-tensioner and carriage.
Please let me know, when you have any questions. I will try to answer them as quick as possible.

Complete Doku: http://wiki.fablab-muenchen.de/display/WIKI/Delta-Drucker

Instructions

Please look at our Wiki:
http://wiki.fablab-muenchen.de/display/WIKI/Delta-Drucker

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Hello,

as you can see on the picture, I found the time to contine my work on the printer. Also it is not alone anymore ;)

I have uploaded the BOM and will produce video-instructions in the next days.

If you have any questions, feel free to ask!

Cheers

hi, will you update BOM/photos of this printer with belt carriage? I am very interested in building such structure printer, Thank you very much

Hi Jean, your 40x40 bars are with ??mm each, do you have a DOM list ? i stay really interesting in build one :)

I have updated the bill of material and the files. I will make a couple of videos, where I show how to assemble the parts. I would even make them now, but I am out of 5mm plywood and have no parts to show it with ;)

Hey vonHellsing,
I am looked up behind my master thesis at the moment. I have a BOM and will upload it soon. A friend is building a second Delta based on this design, and we will only put the parts in use on the list.

Thx! Good lucky with your master thesis.

This printer must use different software to compute g-code from the standard reprap/makerbot style design, yes? If so, what is the name of it?

I use the repetier firmware on it. You can configure it very easly on this website:
http://www.repetier.com/firmware/v091/
Select #printer type = Delta Printer

After you have set the rough settings from the CAD drawing, you then only need to adjust the EEPROM-values.

You really do not have to pick your own brain about the calculations ;)

Hi cedho,
I have not found the time to go to the FabLab for quite a while.

I have updated the carriage files (laser_carriage_5mm.dxf) to the latest version. The design is made to be lasered from cheap 5mm plywood. I would design it in a different way, if it was made as a 3d printed part.

The bearings run on the flat planes of the extrusion. It is not perfect, because you can not align the bearings perfectly. This causes wear on the extrusion, because they are weaker than the hard bearings. Never the less, it is a very cheap solution.

I hope that answer helped you. Feel free to ask again if not!

Cheers
JeanClaude

Hello I am wondering the bearings you used for the linear movement are they in the groves of the extrusion or on the outside? Also do you think you can make an stl file for the linear carrage and effector parts i really love your design vecause it doesn't use expensive v wheels that cost $5 each. Also how tall is your printer?

Skates with ball teflon not to wear the profile
New idea very simple to mount delta delta Kossel and Rostock aluminum! ... :-) (supporting parts in the engine and Abs)

I found a few hours to work on my project:

  • I changed the fishing line to a proper belt. The belt tensioner holds the end
    stops now (not on the pictures yet)
  • I assembled the E3D-hotend
  • I printed and assembled an air tripper extruder
    The printer moves and is ready to be calibrated. During a dry run I saw a bit of movement on the carriage,
    so I do not expect good print results. I may have to replace the IGUS guides with something else.

I found a few hours to continue with my project:

  • I changed the fishing line to a proper belt. This made the design simpler and it looks cleaner now.
  • I assembled the E3D-hotend
  • I prinded and assembled an air tripper extruder
    The working day the printer should move a be ready to create some PLA-spagetti..

https://www.youtube.com/watch?v=oIZgvrOPmJQhttps://www.youtube.com/watch?...

After two burned Arduinos, I figured out, that the endstop connector (S - +) hotwires + and -, when you connect the plug the wrong way. Not exactly a 'Poka Yoke' design...
Anyway, with a new bootloader and L7805 the Arduinos were back in business and the machine moved for the first time.

I would like to see a printed part ver of this or the delta tower. this design looks easy to scale up aluminum diameter size easily.

I copied the framedesign from http://deltatower.ch/http://deltatower.ch/. The laserd wood discs give not enougth support and have to be replaced by a milled aluminium part. Their design works, so I am optimistic about that.

I like the design with the alu extrusions, how is the stability though? I see no cross braces or lateral support is that an issue here?

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