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?
Post the speed view from the slicer - it would help understand what speed the external perimeters are actually printing at, as the filament cooling options in the slicer can affect the print speed. Also a shot with a top down lighting would be better to evaluate artefacts - side light shots tend to hide them.
Finally in the shot above you can see the corners being inconsistent. This may be due to motor movement because of the dampers. Would be good to understand seam placement in that model and whether these artefacts happen because of the seam jumping around or because of stepper wobble.
