This is an older thread but I’m having this issue. I’m only on second print - unpacked the box yesterday. Fed fine for about 2 hours and then is error. I verified no blockages. If I pull the feeder tube out of the extruder, filament advances fine. I moved the AMS feeder closer and it’s at a fine angle. It’s stopped about 5 times in last 30 minutes for the same issue. Any other help?
Aaron
Hi Aaron:
I solved my issue, but unfortunately, I never fully understood how, so I’ll give you a few to try. Hopefully, this helps you and others:
The issue was more frequent with some filaments. I found that the issue was quite common when using Bambu Mate PLA.
Ensure that the PTFE tubes’ ends are correctly cut (completely perpendicular) and positioned.
I believe that the last action I took that finally made the issue disappear was to disconnect and reconnect all the PTFE tubes from the hub, and also cut a few millimeters from the end of the tubes, ensuring that the tubes are fully perpendicular and no sign of wear and tear on the tubes’ ends: A1 series Printer PTFE Tube Removal | Bambu Lab Wiki
Clean the extruder gear assembly of filament residues: A1 Maintenance Guidelines | Bambu Lab Wiki
Hope this helps: Whatever I did, it finally fixed the issue and the printer has already 3000+ hours with no issues.
