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Filament jams on "outgoing passage"
While loading filament, the filament gets wedged against the “outgoing” passageway, just past the drive gears. I’ve cut the filament to a point, as indicated in picture 9 of the handbook. But, even with a point, the filament comes out of the “incoming” passageway, goes across the drive gear (which is perfectly aligned). But, the filament usually curves a little bit and catches on the opening of the passageway.
My workaround: If I open up the unit, I can nudge the filament into the passageway, while pushing from the buffer-end of the PTFE tube.
I’m thinking I shouldn’t have to employ this workaround all the time.
Posted : 06/09/2020 4:20 pm
RE: Filament jams on "outgoing passage"
First, I would clean the third Bondtech gear, which looks severely covered with a ground filament. Second, I would check that a top bearing pushes the filament to the gear. Finally, I'd use a twist drill on the incoming hole to ensure that it routes a filament to the Bondtech gear properly
Prusa Bear MK3S + MMU2S. Hotend: TriangleLab Dragon Hotend + Rubber Sock.
TheZeroBeast MMU2S firmware
Posted : 08/09/2020 7:14 pm