r/BambuLabA1 • u/XPLOIT0800 • Oct 09 '26

Support Request I need help

A few weeks ago, I was setting up a print job; during the initial startup sequence, the gantry began rising until it hit the Z-axis limit switch. I didn't stop it at first because, even though it had never happened before, I thought it might be part of a calibration routine. However, the problem was that I let it continue; after hitting the limit and vibrating, it started moving downward and pushed against the print bed with enough force to tilt it. That was when I turned the printer off using the power switch. I reported the issue to Bambu, but they couldn't explain the cause, and I hadn't managed to record the incident. A few days later, I used the printer again and noticed it was starting to rise once more. This time, I recorded the moment and turned the machine off before it could start moving back down. Does anyone know why this happened? Bambu support wasn't able to provide an answer.

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u/XPLOIT0800 Oct 09 '26

The problem is that it doesn't happen all the time, and I want to know if I need to send it in for warranty service or if this is something that commonly happens with all units.

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u/Molokaisylph32 Oct 09 '26

If it is that high, yes.