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Filament jams on "outgoing passage"  

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Bill
 Bill
(@bill-2)
Active Member
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
Pavel
(@ruhkukah)
Active Member
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
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