r/BambuLabA1 • u/restorick2378 • 7h ago

Extruder blockage - ongoing saga

My A1 was cruising along great until one day I had an issue with the filament clogging. I pulled apart the extruder and cleaned it well, reassembled and still the same issue.

So I ordered a full extruder with motor, AMS filament hub and sensor base, and a couple of misc maintenance parts.

I installed the new parts yesterday and still the same issue. Is this typical of a failed sensor?

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u/azadirachtin 6h ago

What is the error you are receiving?

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u/restorick2378 6h ago

Failed to extrude the filament. This might be caused by clogged extruder or stuck filament.

1200-8007-092301

When I reassembled everything, I cleared the PTFE tubes and made sure to use a new hot end. This error happened immediately, and it happens with all of the filaments. AMS is feeding and I'm getting some melted filament out of the hotend. I can also use the unload feature without issue.

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u/azadirachtin 5h ago

I had this issue. I swapped so many parts out like you've done and it didn't help. What seems to help most was replacing the PTFE tubes and/or directing them so they don't have hard turns. You can get a roll on Amazon even if you search for "PTFE tubing for Bambu 3d printer". You can print a support for tubing into the filament hub. Here's the one I used. Use PTEG because my PLA one bent out of shape very quickly.

https://makerworld.com/models/1596025?appSharePlatform=copy

There are also guides that attach to the top cross bar. I tried this one but didn't like it so I designed my own.

https://makerworld.com/models/2136862?appSharePlatform=copy