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UM2 Feeder

UM2 feeder assembly. Quick release.

3D printer parts and enhancements

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A variant of iRobertl's excellent design with some improvements I felt necessary.

This feeder uses a 4mm metal eyelet at the filament entry point to minimise friction. The entry and exit points are as close as possible to the hobbed drive gear and the pressure arm is simplified and made more rigid to help prevent filament "wandering"

Materials and methods

Uses existing UM2 feeder parts.

Ball joint


4mm eyelets (search eBay)
3mm Wingnuts (optional)
3mm studding

Edit: The ball joint is part: S0429 if you need to source elsewhere..
I also used these - an excellent (replacement) source for bowden collets:




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Mini profile picfreaksed added this to the things to print collection ago
Mini 1461277 10202460643192258 2836949160758693158 nLimolwali added this to the 3d printer tweaks collection ago
968a79c046d2bf7998b7b039c6f187e7?default=blank&size=40Jeff Leung added this to the extruder collection ago
9d03d27308518041b23632f1894b79af?default=blank&size=40Yong-Ming Chu added this to the UM2 Feeder collection ago
2e3d65d1ce29b186fdcedeccbcbae4ec?default=blank&size=40ChrisR published this design ago