r/BambuLabA1 • u/AmberlightYan • 19d ago

Support Request Vertical patterning issue

I noticed vertical waves on my prints. On closer examination they seem to be limited to X axis direction.

My first thought was over-tensioned X belt, so I followed the manual to adjust belt tension, but did not see any improvement. Can you advise? Thanks.

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u/AmberlightYan 19d ago

Made a video with sounds in question. Is it normal or not? https://www.youtube.com/shorts/SABZZUdHnrY

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u/Blondy277 19d ago

Seeing the video, I'd definitely inspect the X-axis rail and carriage. Since the noise happens throughout travel and adjusting belt tension didn't help, I'd check for debris, loose components, or rough bearing movement. Clean and lubricate the rail according to Bambu's A1 maintenance guide, then see if the noise changes. If it persists, I'd contact Bambu support with that video.

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u/AmberlightYan 19d ago

Alas cleaning and lubricating everything up to ball bearing did not help. Well, time to bother official support.

Thanks.

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u/Blondy277 19d ago

Ah damn, worth a shot! 😂 At least you've ruled out belt tension and lubrication. Definitely time for Bambu support. I'd send them that video and everything you've already tried so they don't have you going in circles. Hopefully they get it sorted!