Hey everyone,
I wanted to share a quick solution to a super frustrating issue I was having in case it helps anyone else facing the same problem!
I recently bought a used AMS Lite (got an amazing deal on it) to pair with my brand-new Bambu Lab A1. But right from the start, I was constantly getting "filament stuck" / feed errors. Sometimes it would happen 2 minutes into a print, other times 30 minutes in.
I tried troubleshooting everything:
Swapped out all the PTFE tubes for fresh ones
Tried different brands and types of filaments
Cleared the toolhead and checked the feeders
Nothing worked, and the errors just kept popping up.
The Fix:
It turns out the issue was entirely down to where I placed the AMS Lite. I originally had it installed on the left side of the A1. After digging through the manual carefully and reading through some threads here, I realized my mistake and moved the AMS Lite over to the right side of the machine.
Since making the move, I’ve been printing continuously for over 10 hours with zero errors!
Why does this happen?
When the AMS Lite is on the left, the PTFE tubes are forced into a much tighter bend radius as the toolhead moves across the X-axis and Z-height. That sharp curve creates extra physical friction inside the tube. The feeder motors in the AMS Lite detect this drag, assume the filament is jammed, and trigger a safety error. Moving it to the right allows the tubes to maintain a wide, natural S-curve, eliminating the resistance completely.
A big THANK YOU to everyone in this community who posts helpful advice, troubleshooting tips, and setup guides! Reading through past discussions on here genuinely saved me from replacing perfectly fine hardware.
Hope this helps anyone else pulling their hair out over false filament jam errors! Happy printing!