MMU2S Extruder Idler for MMU2S
Description
Although I followed all calibration guides and spent endless hours I never got the IR sensor working 100% reliable until I found the root cause, at least in my case. Maybe there are tolerances in how the IR Sensor is soldered that lead to those issues. I modified the following: - removed the cut in the little nose that closes the IR Sensor - enlarged the nose a little bit. Mine looked like it had to much clearance - removed the play of the inner bearing for the M3. Actually its smaller than the M3 so you have to drill it with a ~3mm drill to make it fit without too much play. Attached you also find my f3d file in case you want to mod. In case this solves your mmu issues I would appreciate to see your make on Thingiverse.
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