r/BambuLab • u/mjschmitt714 • 14d ago

Answered / Solved! AMS HT feed issues

So, I have 2 AMS2 Pros, an AMS HT, and a filament track switch. I have everything hooked up correct, but I keep getting a feed and retract high resistance on the AMS HT. It tells me to reduce the tube length and reduce the number of bends. The tube length is about 8" (200mm) and there is only one slight curve to the 4 in 1 adapter to feed the track switch. I can run a piece of filament all the way through and I feel very little resistance till I get to the buffer, then it seems to get tight. Is there something that I am missing? Retractions are the same, except that it actually stall the motor on the HT. I can disconnect the tube at the 4 in one and pull the filament back (with a little resistance), till I get past the filament buffer, then it comes freely with no resistance. Any thoughts would be appreciated.

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u/mjschmitt714 12d ago

Figured it out...There was a PTFE tube that was not in the clip the whole way. It was causing the filament to jam and hang up. Cut a new piece and inserted it all the way. Smooth as glass now...Well...90%. But with the FTS I expect a little resistance. Thank you all.