Well, something is mashing the end of the filament for sure. It's a good idea to do the bowden length calibration just in case, but I don't think that's causing this issue. The MMU should be completely disengaged when the extruder is backing out the filament, leaving only a little friction. If the MMU is engaged and fighting the extruder I could see how this might happen, but if that was the case I think you'd have bigger problems.Luke173 wrote: ↑Sep 14, 2018 3:06 pmAs soon as the second color retracts for the first time, it get's stuck just bove the hotend idler drive gears. I then have to manuelly pull the filament out. All filament look like this:
It looks to me as during retraction the hotend idler is pushing backwards, whereas the mmu idler is at a full stop, causing the thin part of the filament to clog the orange tube.
At the very end of a single color print the MMU should unload the filament. Is it not unloading the filament at all, or is it trying to unload and getting jammed?
It's hidden in the manual.
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