Multi-extruder derived from the Prusa Multi Material 2 upgrade.

thingiverse

This is an attempt at creating a dual-motor extruder for five feeds of filament, using two motors. This is to enable the use of the e3d toolchanger or other multi-head systems on the Duet Wifi without requiring an expansion board. I am fairly confident that this design will work just as well as the Prusa Multi-Material upgrade it's based on, since I haven't modified any critical functional parts except for removing the redundant selector. Modifications made to the parts include: Increasing space so standard M3 nuts can be used. Designing a clamp for PTFE tube press fittings. Removing redundant material used for fitting the selector. The source material came from: https://www.prusa3d.com/prusa-i3-printable-parts/ Prusa's license for referenced work is CC BY-SA 4.0, which is also my chosen license for this listing. As I understand it, all derivative works of this model must contain information attributing it to Prusa and be licensed under an equally open or more open license. The BOM was created by following the instructions found here: https://manual.prusa3d.com/c/Original_Prusa_i3_MK3_to_Multi_Material_2_upgrade I will hopefully also explain how to set up a slicer to operate with this at some point, but I'm yet to convince e3d to let me on the toolchanging beta. Some discussion of wiring on duet3d can be found here: https://forum.duet3d.com/topic/7039/wiring-and-extruding-using-an-e3d-toolchanger-without-a-duex