K2 not extruding filament
Background: I made the stupid decision to try TPU on my external spool. Worked for one print job and then stopped extruding. So I removed and went back to my CFS. I cannot get any filament to extrude since.
What I’ve done:
- Hot push through to work out any clogs in the extruder.
- Confirmed filament will manually feed out of the nozzle (pushing it through with the nozzle hot)
- Confirmed there are no blocks between the CFS and the machine. The filament comes in to the head assembly fine.
- Checked all gears and did find some TPU wedged between two. Cleared that out.
See video, this is after pressing “load.” The filament comes in just fine from the CFS but will not extrude. It tries many times and eventually gives me the error: [FO2845] Extruder may be clogged. Click "Retry" after resolving.
Help!!!