Pictures? - I have a video!
It is the knurled wheel - I removed the idler wheel + lever
So you can see, that I can move the knurled wheel by just moving the filament (which I tried to straighten as best as I could) - if i hold it tight, as it would be from the stepper I can scratch it - if you crank up the volume a bit you can hear it in the end.
As my filament is normally curved, bowing to the right when it comes from the roll - it would press even harder onto the knurled wheel.
(It is a public but unlisted video, I hope that works)
So overall it is no deal breaker (for me) and as far as I see it not "solvable" in this iteration but I wanted to mention it.Edited by Guest
Your knurled wheel should create the motion, does also scratched your filament or is it the wheel that supplies the pressure that pushed the filament against the knurled wheel?
Have you tried opening up your feeder?
That 'pushing-wheel' should be secured between two arms. Could you check if that wheel can still rotate freely and if those arms are still correct?
Perhaps by adding a picture of what the inside of your feeder looks like it could pinpoint us into a certain direction. Thanks!
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