Go through and do your maintenance procedures and belt tightening and see if that helps
Iāve been following this thread from start to finish. I have over $3000 sitting in my cart and am having problems pulling the trigger as I havenāt seen anything substantive from BL on what is being done to resolve these quality issues. Printing ā ā ā ā 5 times faster than anybody else still ends up with the same result. I really want this to work - Iāve been following with hope from the start of KickStarter and am seriously rooting for BL. Iāve got around 40 projects waiting for this quality issue to be resolved with a lot more business planned for BL. The problem of no BL response tells me that if I buy, I effectively get no support from BL.
Wow itās a 3d printing tinkerer coming from a well tuned ender 3 with superb surface quality but slow as hell i upgraded to a P1S. Well i soudlnāt have done that because iām running into the same problems as all of you but even worse. I get the rippling but in my case it is heavily skewed. I already made an issue for the bambu lab support but within two weeks i only got āclean everything and recalibrateā.
This is getting pretty frustrating. If you are interested, i posted many of my prints and tests at their official discord:
In my particular case the rippling often isnāt that pronounced in strength but really heavily skewed/distorted.
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/channels/970163353542606888/1140540587049754724
Thats the post i created
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at their official discord oviously
I got in trouble once with my, at the time, italian girlfriendās nan at the xmas dinner table. I meant to say āa littleā un pocino, i if i remember right, but said ābochinoā which means blow job!.. to her nan ffs. They laughed but asked how i knew that word. I also said my āeggsā were aching instead of āeyesā at the same mealā¦ .i dont go to Italy anymoreš
Thereās some technical experience from printers behind that post.
Thanks a ton for raising this issue and solution to Bambu. I hope they will fix this. Until fixed, the P1S will remain in the cart for now.
Well, I was wondering what the setting should be to print my own drive belts. Glad to know it is 10mmĀ³/s &^}
Any updates on fixes for the banding/ ringing? this tends to happen to me when there is a vastly different layer time at the sub layer
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I started getting into this rabbithole and I have had absolutely no luck. I have been thoroughly documenting my efforts in another thread. I had the idea last night of adding weight to the motion system and saw it mentioned here, so I will probably try to do that conservatively.
Iām not sure exactly how tightening/adjusting the screws on the heatbed would fix the issue, but Iāll give that a chance as well.
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I canāt read that much anymoreā¦ has anyone changed out the smooth idlers with toothed idlers?
Seems to me itās the toothed belt, rubbing on the smooth idlers. Simple physics.
This is a longstanding debate in the 3D printing world. Many tests have shown that thereās no advantage to a toothed idler.
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Prusa says it has eliminated VFA on the MK4 with lower step motors.
Unrelated issue - there is motor resonance rippling which causes variable sub-2mm VFA and you have belt-rippling which causes 2mm VFA. The main difference in cosmetic effect is that the belt ripple happens at moderate speeds and has a consistent width regardless of speed.
You can print a VFA test or really, any height-range-modified object starting at 40mm/s and stepping it up through 200mm/s and you will see that there is minor MRR VFA up to around 70mm/s and 2mm VFA starting around 80mm/s, peaking around 120-130mm/s, and falling off more after 160mm/s.
Some printers are less afflicted with this problem. The issue is more present on the Kickstarter production run, and less present on the later ones. Some Kickstarter ones like mine are particularly awful and prints can be basically unusable.
Side by side I note that the later model one has more play in the carbon linear bearings and that they switched the motors and drive pulleys they use. There may be other differences.
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I put 0.9 steppers on my MK3S years ago. They do help.
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Not for this type of artifact.
Have you tried retensioning the belts?
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Check in your slicer the perimeter speed. More likely than not youāre printing slower where there are no artefacts as your layer time is lower.
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