Banding / Ringing type artifacts?

Moshen, I finally got a reply to my ticket asking me to repeat the print with a different filament. No waiting for delivery and the another 2or 3 day wait for next response!!!

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From what I see different filaments hide the issue better but the ringing is still there. I’ve only gotten them to go away by printing at 60mm/s outer walls or slower. Curious if you find different results.

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I will wait for the reply from Bambu and then may try your speed thing. It would be annoying if reducing speed was the cure as the speed of the X1C was one a the reasons I purchased it!!! We shall see!!

I get this banding/rippling only on X axis and not on Y. I’m hoping to get X to be the surface quality on Y. Belts tightened and rods freshly cleaned. I filed a support ticket so it’s on Bambu Labs’ radar.

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I’ve tried 3 different manufacturers of PLA and 1 PETG all at the request of Bambu Lab. The banding does show much clearer on the PETG but it is also clearly visible on all the PLA on both the X & Y with no real issues with top and bottom.
The last answer was that the new slicer update should help, I will print another test piece tomorrow but I am not that hopeful !!!
BL keeps closing all of the tickets I submit on this and other problems as soon as they answer them, usually with a request to do another test.!!! I think just sending a reply is just to make it look like the Tickets are being cleared before they actually are!!!

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Ringing and decline in surface quality - Bambu Lab X1 Series / Troubleshooting - Bambu Lab Community Forum - another thread for that. I have the same issue on the P1P.

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Just a quick update on this issue.
Since following all the suggestions re +/- speeds & walls, Belt Tensioners & Re-Calibrations and multiple rod cleanings etc etc I can confirm that the artefact still remains clearly visible and feelable on the X Axis only.
I have sent in several system logs now to Support but it has been over a week since last one went in and not a peep from them.!!!

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I see similar artifacts on some of my prints, also dominant on the x axis. For now, I can live with them, but not if they get worse. Keep us updated please!

I can only imagine it being some kind of belt teeth pattern you can see on CoreXY printers frequently.

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Me too, I have the same wave on X only.

I hope Bambu lab will have a solution.

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Having still been unable to clear the artefacts I have decided and Bambu have agreed that the printer is going back for a refund. I will be keeping an eye on the situation and may return in the future. I wish Bambu Lab all the best with this printer and hope they get all their issues resolved quickly.

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I wonder if installing smoother on the X and Y motors would help? https://www.amazon.com/gp/product/B071WG3SZQ/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

I am also getting the same effect, especially on round objects. Almost like their might be a “ZigZig” X Y movement rather than a smooth X Y movement.

I have to replace my motherboard cooling fan, I may steal a couple smoothers from my Ender 5 and see if that helps.

I am also going to re-visit some of the Bambu Lab sample prints to see if it’s a slicer issue since theirs are pre configured and tuned.

Super noticeable on any “flat” surfaces. I’ve gone back to my Ender printers when I need buttery smooth prints. I hope BambuLabs fixes this sooner than later. I’ve put off ordering my second X1 Carbon and set my eyes on a Troodon v2.

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Yep, when you’ll try I really want to know your result. It’s possible than Bambu works on this problem too. I hope…

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Not sure it will help a lot but it maybe related to infill/wall overlap, as infill keep the sema direction and not rotate when turning the 3d model it still.make sens tha only X o Y is impacted : :Is that a problem ? micro-z-banding

Try -5% for overlap infill/wall (note the minus sign)
Try without or with tiny infill ratio

this really is annoying because most of the things I want to print have this effect also.
I did all the tensioning and else and dealing with support is a bit tiresome as they make you jump through the hoops.

Maybe we should post all the issues here and really get their attention, this is a big deal and one of the most frequent issues of this machine.

I think that if everybody does the test and report here, we can just simply redirect support here rather than having 40 people doing the same test with support.

We should all print the same model and report back with pictures. Thoughts?

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It’s definitely a good idea to collaboratively test for issues. One has to take care not to overly criticize, but I see it the same as you that this issue might be important for some and ther should at least be a possibility to achieve a better result at a time when it is really needed. Maybe it contains a compromise, lower print speed for example, that would be fine with me.

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I have two theories.

Poor K/PA values. The infill is over extruding at one end of travel where it touches the walls. This is causing a subtle ripple on the outer surface. Do you get poor seams on the same prints? does this disappear with gyroid infill.

Or

2x poor stepper drivers amplifying each others flaws when harmonizing in Core XY.

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I’ve been having issues with this too. I swear it’s gotten more noticeable since the last firmware update. I thought vibration compensation was supposed to address this but it doesn’t like much better than my other core xy that has no compensation. Meanwhile I’ve added a sonic pad to my ender 3 s1 pro and have been getting really good results.

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I am having the same issues on X axes efter updating the software. I hope Bambulab fixes this. The first half is printer at 50% speed. Filament Extrudr BioFusion quicksilver

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I agree simple cylinder and a box.

I have not printed in PETG yet, only PLA and ABS and the results are the same.

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