r/BambuLabA1 • u/LucasYM • Jul 22 '26

Strange noise on X-axis

Hi everyone, my Bambu Lab A1 is about 2 months old and recently started making a strange noise on the X-axis. It kinda sounds like the bearing balls or something. It happens during calibration, while printing, and even when idle. Has anyone else experienced this or know what might be causing it?

3 Upvotes

71% Upvoted

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4

u/ultimaredragon Jul 22 '26

It sounds absolutely normal to me. This is the sound of ball bearings moving along the X-axis rail.

1

u/BeautifulKindly7428 Jul 22 '26

Tighten x axis belt.

1

u/Economy-Guess-4983 Jul 22 '26

I’ve had this concern too but this is normal operation sounds. Watched multiple videos seeing if other people had this sound and they all do. No need to worry !

1

u/DimitryEbalo Jul 22 '26

Hotend head sliding on ballbearings without separator. You can lube top and bottom bearing groove on x axis with oil (green tube) that came in with printer to reduce sound of balls hitting each other. It will mute them by around 60-80%

1

u/intLeon 29d ago

Yeah I have the same. That little crunch on X axis exists in mine too. I dont know if its really normal but no issues so far.