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• 

  Created by

  MarcusWolschon
• Created on Jan 29, 2010

This is an alternative toolhead to allow milling with a RepMan 3d printer.
Feel free to adapt it to other printers like Mendel, Darwin and Makerbot.
It should work fine for milling 3d-objects (Skeinforge) and PCBs (visolate) or for exact drilling (drill holder attachment) and cutting (90° attachment and cutting-disc).

You need a Dremel Flex Shaft Attachment (Model 225) and a Dremel as well as an M5x95mm(or longer) screw or threaded rod for this.

Documentation: bitsfrombytes.com/wiki/index.php?title=Milling#milling_PCBs
Forum-Thread: bitsfrombytes.com/forum/post/milling-toolhead-o-thingiverse
(I used bitsfrombytes.com/forum/post/3d-model-toolhead-attachment-design-alternative-heads )

Update: I made a Video (http://www.youtube.com/watch?v=aOt_yXAkMrs) of my first tests of PCB milling using this toolhead. It performed well given that I fitted a way too large milling-bit and did not tighten/block the springs holding the print-surface.
Update: Experimental Skeinforge settings for milling are documented here: bitsfrombytes.com/wiki/index.php?title=Milling#milling_in_3D
Video: youtube.com/watch?v=7rdkIjtuiYA

Challenge:
(Details: bitsfrombytes.com/wiki/index.php?title=User:MarcusWolschon/Challenges )
Get 10 small mendel parts or 2 larger ones or your design printed for
adapting this RepMan Dremel milling-toolhead to fit the Mendel.

See:
objects.reprap.org/wiki/Mendel_X-axis
Note that you will probably have to design a new x-carriage-lower_1off or even also a x-carriage-upper_1off due to the poor design of the Mendel x-carriage regarding mounting alternative tools that are wider then 22mm.
5 additional small or 1 large parts if you can do it so extruder and mill can be switched with 4 or less easily accessible screws.