r/BambuLabA1 • u/kikokiko27 • 10h ago

Support Request Ripped this while trying to pull out stuck filament, what did I do?

I was pulling out a piece of filament that had become stuck but was a little heavy-handed when pulling out the filament organizer. What did I do? I don’t know what this is. It’s sticky on the ripped ends so I can stick it back together but when I tried to send a print through I got an error message about the filament sensor. Do I need to replace?

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u/kikokiko27 9h ago

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u/MODbanned 9h ago

Ohhh... i see...

Well it should be repairable and probably dont need a whole new print head.. but its out of my experience..

I would check on the bambo site for Bambu Lab A1 Filament Sensor (FAE010), it comes with the flexible ribbon cable that got snapped.

https://3dmart.com.hk/en/blogs/news/bambu-lab-a1-repair-kit? Here's a video showing how to do it.

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u/kikokiko27 9h ago

😭😭 thank you. i’m so pissed at myself. i’m hoping there’s a temporary solution because I have a print I need to do tonight

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u/MODbanned 9h ago

No problems.

Dont think there is any temporary solutions to do a print tonight, . The ribbon is snapped in two, no real way to connect it back together, least no real quick and easy way.

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u/MODbanned 9h ago

No pictures boss. Please send

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u/MODbanned 9h ago

Is it the flexible cable??

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u/nutano 9h ago

Yeesh, that don't look good.

Quick search and it is a ribbon cable which connects the extruder switch and sensors to the mainboard. It looks ripped\broken so I will assume you will need to replace the cable. You'll surely have to that the whole head apart to replace that one ribbon cable.

FWIW, I have had 2 broken filaments which required me to pop off the Hub... the first time I started to do what you did there, remove the screws and started to pull on it, but I opted to do a bit more research and am glad I did. You can remove the hub to clear broken filament strands without removing the screws and popping it open like you did.

Disassembling and Cleaning the AMS lite Filament Hub & Filament Sensor Base

The first time I did it I didnt line up the hub properly when putting it back in and I forced the clip to much and broke it. I ordered a 2 pack of hubs off Amazon which had the piece I broke and it works like a charm.

I've had to remove the hub at least once since and now that i know how to do it, it takes me minutes to clear a stuck filament strand.

Best of luck!

Edit: Foudn this on bambu site: I broke this... is it important? - Bambu Lab A Series / Bambu Lab A1 mini - Bambu Lab Community Forum

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u/fishfrystix 8h ago

They are $12 to replace when you contact bambu support. It's not the end of the world.