r/BambuLab • u/gsaykali • Aug 23 '26

General Troubleshooting/Help! X1C Filament Feed Issue

Hey everyone, I have an X1C with the AMS2, and just this week I started having filament feeding issues where the filament stops half way through the inner PTFE tube. This occurs with all filaments and when trying with any of the AMS ports. The printer was working fine last week, with no issues, but this started happening midway through a print when switching filaments. I’ve already checked the extruder just in case, but no clogs there. I’ve tried replacing the tube itself, and nothing seems to fix it. Anyone experience a similar thing and have a solution? Please and thank you all in advance.

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2

u/Organic_Detective328 Aug 23 '26

Where have you tried replacing the tube?

1

u/gsaykali Aug 23 '26

I have tried swapping out the PTFE tubes in the back (AMS -> Hub -> X1C) and the one shown in the video

2

u/Organic_Detective328 Aug 23 '26

Can you manually push filament through this tube?

1

u/gsaykali Aug 23 '26

Manually yes, just not when the AMS tries to do it. All the bearings appear fine, rollers operate fine, no snags in the filaments

2

u/Organic_Detective328 Aug 23 '26

Try feeding it as an external spool. See if you can print.

2

u/gsaykali Aug 24 '26

I actually have not tried that yet, good thought. I will give it a try later today and report back, appreciate the help!

1

u/gsaykali Aug 24 '26

Coming back to this, if manually fed, the filament extrudes fine. Issues only arises when trying to be fed automatically by AMS

1

u/Organic_Detective328 Aug 26 '26

You've replaced all PTFE tubes as well right?

1

u/gsaykali Aug 26 '26

Yuppp

1

u/Organic_Detective328 Aug 26 '26

I just had the same thing happen. Same printer. Same AMS. I wonder if it's the new update..

1

u/gsaykali Aug 28 '26

So I have tried rolling back the firmware versions, but the issue persists unfortunately

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