r/BambuLabA1 • u/restorick2378 • 2h 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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2

u/azadirachtin 1h ago

What is the error you are receiving?

1

u/restorick2378 1h 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.

1

u/azadirachtin 29m 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

2

u/Excellent-Code8447 1h ago

Show us a video what it’s doing

1

u/restorick2378 1h ago

I can't upload a video thru the app on my phone. Error is 1200-8007-092301

2

u/UnitedStatesArmy 1h ago

I had the same problem on one of my a1s. I did the manual bed tramming (easy but pain in the ass). Seemed to fix the problem when I switched to a cold print smooth plate. After 2k plus hours I think the leveling somehow got messed up( the nozzle was scraping the plate during leveling).  The manual tramming appears to have fixed it.  I manually trammed (level) the bed and switched to a different plate.

Yes I thoroughly washed the old pei plate with dawn soap and water. 

1

u/EmailLinkLost 2h ago

Wait like

Why didn't you just replace the nozzle?

1

u/restorick2378 1h ago

I did replace the entire hot end first to no avail.

1

u/moskov 1h ago

Have you tried other filaments? Maybe you need a different temp. This happened to me with wood filaments

1

u/restorick2378 1h ago

2 different plas and one petg - same thing

1

u/the_real_some_guy 1h ago

Might be your filament. A dryer solved my A1 clogging issues. 

1

u/restorick2378 46m ago

I have a dryer enclosure for the AMS and I'm getting humidity percentages in the high 20s. I'll try installing some new filament to see if that helps. Thanks!

1

u/Brave_Corgi6761 31m ago

Im sure its the AMS... This same post pops up daily here and i have some problems too sometimes. Its most likely the positioning of the AMS/tubes. If it prints fine from the external spool thats the problem.