Geared Addon (inspired on Meduzas 'bolt-on' geared feeder.

youmagine

I've created a Geared Addon for my extruders. You can find it at https://www.youmagine.com/designs/metal-geared-addon-inspired-based-on-meduza-bolt-on-addon. I use the UM2 feeder motor 0.9° on my UMO+ with MK7, and my esteps are set to 478.5 (divide by two for 1.8° motors). You might need to reverse the motor on your UM2 to make this work. On my UMO/UMO+, I had to use a different grip than the ones shown in the photos because the IRobertI feeder would hit the wood. The gear ratio is 2.36:1, and I generated the gears using geargenerator.com. This design is based on Meduza's "bolt-on" geared feeder upgrade for UM2, which you can find at https://ultimaker.com/en/community/17033-meduzas-bolt-on-belt-geared-feeder-upgrade-for-um2.