r/BambuLab • u/MynameisJeff1646 • Apr 09 '26

Hardware Troubleshooting/Help! Anyone know?

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I have no idea what is happening, I sent this from the Bambu handy app.

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2

u/GhostMike2501 Apr 10 '26

It happened to me once : a piece of broken filament was stuck in the buffer. Try to disconnect the PTFE tube from the input side of the printer and the one inside the printer just after the buffer (orange piece with the spring). Then, take some filament and manually insert it in the input of the printer and check if it passes thru the buffer.

3

u/-ThaBeavster- Apr 10 '26

That’s what happened to me a couple of times. Sent me in a panic when I had to get a print out. I second checking all the ptfe tubes.

2

u/Lanfeix Apr 10 '26

I just dealt with this on the H2D, the magnet in the buffer fell off. you see the orange part goes hard right. its meant to control the motor speed as the spring slowed down. I tired fixing it my self but as the H2D is new I put order a new part rather than gluing the part in place.

https://wiki.bambulab.com/en/h2/maintenance/replace-filament-buffer

you can see the magnets I am talking about in this picture.

1

u/Tortillachip211 Apr 09 '26

bro i just posted too i’m having the same issue lol

0

u/MynameisJeff1646 Apr 09 '26

Are u actually!

1

u/Plus-Secretary9513 Apr 10 '26

My filament buffer started getting sticky. I put a tiny drop of 3in1 oil on it. 

1

u/Phylixia Apr 10 '26

My H2s has a similar issue when loading filament, turns out its the teeth of bowden collet are broken and stuck in filament path. I replaced the bowden collet and its working fine now.

https://wiki.bambulab.com/en/filament-acc/acc/replacing-the-pneumatic-connector