Hi Robert !
First off, i just want to tell that your feeder is the best i've used so far. So thanks a lot for this excellent job ! But i think it may be improved a bit more. I've used it a lot and i've noticed the same problem on the long run (for me of course). At the bottom of the feeder, as the filament is coming in with an angle there is a small friction.
https://www.evernote.com/shard/s24/sh/bf8054f5-d769-4af2-814d-271c65257693/de7450e9356d6a0dae44a66bbfb52967/deep/0/Alternative-UM2V2-feeder-2.jpg
With time the feeder is nibbled :
https://www.evernote.com/shard/s24/sh/0378267e-814b-4958-83d6-e15519a03feb/feaee0aba83770081b19449c5f3249a0/deep/0/Alternative-UM2V2-feeder.jpg
This cause the displacement of the filament axe and results in under extrusion for me.
So i thought, maybe you could just add a version that could receive a small bit of teflon tube. This should slow the nibbling process a lot, making your feeder much more reliable on the long run. What do you think ?
I've had issues for 2 weeks which seems infinite when you print every day. This is the only feeder that gave me excellent results (i've tried 6 different solutions even with mk8 and mk7 gears). It works very well, and is very convenient. The option to remove the filament when something is stranded is very useful (you no more grind on your filament when sometimes you have to pull it off!). You load and unload filament in a breeze. It prints flexible filament like charm. This is definitely THE UM2 feeder for me. Thanks a lot Robert !
