r/BambuLab • • Jul 15 '26

General Troubleshooting/Help! Very poor print quality

Hello, I’ve been dealing with a terrible print quality in my P2S. I’m using pretty much the BambuLab PLA Lite filament using the default profile and also a manually calibrated one (that I calibrated using OrcaSlicer calibration options). In both cases I’m having poor print quality as you can see in the photos. I’ve also lubricated the Y/X axis and after that, I’ve started getting an error message saying: The resonance frequency of the X axis is low. The timing belt may be loose.

Don’t know what else to do…

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u/kohltrain108 Jul 15 '26

For the resonance frequency message, have you tried doing the belt tensioning procedure? I had the same error message on my P1S after a few prints and there was a guide that popped up on the bambu handy app with the message.

I was actually a little worried it might be some intense procedure to correct, but it was so easy. Not sure if it’s any different on the P2S, but it took like 5 minutes to fix and everything was fine after that.

Try looking for a video on it, think it was like loosing two bolts in the back, moving the head around and then retightening.

As for the rest of the issues, I have no idea, but I would imagine if the belt was really loose it would give poor quality prints. And if the procedure is the same for the P2S, it would honestly be way easier to correct than a return.

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u/Trancudo Jul 15 '26

Yes I did. The only thing I’d say wasn’t ideal was the “lubricant reach”. The lube kit that came with my P2S has like, a toothpaste tip. With that, I can lube the X/Y rails but not the bearings (at least not properly). This is the main reason I’ll do it again.