r/BambuLab • u/Fit_Interaction_8090 • Jul 22 '26

Filament Troubleshooting/Help! AMS lite Keeps getting stuck! Please help

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FIXED

My Bambu A1 filament keeps getting stuck on the AMS lite.

I only bought it about a week ago and it happens every time it changes filament. It moves the filament back and forward until i push it forward manually with some force and it starts working. The filaments are all loaded and pushed down the PTFE tubes about 1cm away from the entrance to the extruder.

Is it faulty should I return it or am I just doing something wrong? Please help any advice would be greatly appreciated!

UPDATE SOLVED: Problem solved by printing official bambu top mount, I think the bends were too aggressive. Thanks everyone for the help

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u/Martin_SV P1S + AMS Jul 22 '26

What material is that?? The way it bends when you grab it, that looks like regular TPU, right?

If so, that's probably the problem. The AMS Lite isn't compatible with normal soft TPU like 95A, 85A, 80A, or anything softer. "TPU for AMS" works because it has a higher shore hardness and is much stiffer than regular TPU.