My sole conclusion since it tends to disappear at slower print speeds (mainly Outer Wall) is simply the harmonics from the motors to the belts through the Pulleys driving the head…
I modded my good ole Ender 3v2 which I wouldn’t call it that now, but it prints great except for adding the linear rails (XY) made vibrations travel even more but all the harmonics was transfered to the toolhead…
Might be the same issue but not so severe due to the distance and objects its going through.
I’ve done this so many times now. Just for luck, I tried again. Spent 30 minutes centering the belts and tweaking the angles one way or the other.
No difference.
I think I’m going to do this. Any chance you can post a really high-level process? I don’t need to know the nuts and bolts but the order of disassembly would be helpful to speed up the process.
I won’t as the disassembly process of the printer is available on Bambu Wiki, and regarding the exchange of the pulley I’ve already described the process in previous posts.
Yes, it seems like an improvement, but I notice a similar difference when I speed up the printing. The surface becomes slightly rougher, and the waves disappear. The top print is a bit duller than the bottom. Where did you buy the belts and motor dampers?
Excellent work! Shame it’s not a “controlled” experiment though as 2 variables were changed and we cannot tell for sure which one helped. BTW the motor dampers have other downsides- as the motors are now flexibly mounted you may get corner artefacts when changing direction quickly. Especially with a Bambu due to the high jerk/square corner velocity. Have you noticed anything of the sort in prints with sharp edges? Like a low poly print?
