For the past two months, my Bambu Lab A1 has been having problems that appear to be Z-banding. The banding does not seem to be super consistent, and has been messing up both the appearance and functionality of prints. Parts that need to fit together(with tolerances built in) don’t. I have lubricated, tensioned, cleaned(both the rods and the bed) several times, and none of them have fixed the issue. Below are images of some prints(didn’t adjust their settings, the benchies(benchy’s?)are Bambu Lab’s one. There is also a video of what I am wondering could be the problem. The piece that connects the Z axis belt to the Z axis lead screw seems to have an irregular rotation, perhaps because of a bent lead screw(?). If you have any advice or fixes, please comment. Thanks!
