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MK4S Idler blocking filament load
So i've been for a while trying to solve an issue with my MK4S/MMU3. For this example, i disabled the MMU3, but i still have the modified filament sensor/extruder.
When trying to load filament, it fails to enter the nozzle tube (or enters a bit, then gets stuck). If, while it's stuck and the extruder wheel is rotating, i try to open the idler door, the filament now gets pushed normally.
This also works if i push on the tension screws; so i tried loosening up the tension, but it gets too low for the filament sensor to work (i can't calibrate it with this tension).
I tried unmounting the extruder, rebuilding it with the MMU3 instructions; no luck.
What should i try ? Has any of you come across something like this ?
Posted : 04/06/2025 10:27 am