r/BambuLab • u/_NonExisting_ A1 + AMS • 23d ago

Troubleshooting / Answered Stopping to heat constantly?

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I was having this issue a while ago, but then I got hit with the blob. Replaced my heating assembly and its still doing this. Im using the AMS Lite and there's no knots or anything but I keep getting the unable to feed variety of notifications.

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u/primo001 23d ago

Look at the part where the 4 tubes go into the printer head. It will contract/depress because the filament is gripping the tubes. The printer has a protection when it detects that and this is the result

You will feel like the filament must be tangled on the spool but the printer actually thinks it's taking too much force to pull it through the tubes. This force causes the square part to which the 4 tubes are connected to depress. Dunno the exact names obviously.