I have B9 v 1.1
I have problem that I just can't solve. My build table seems to refuse rise evenly. I can't explain it other way.
On tilted surfaces (not perpendicular to build table) I always get periodical waves with a high that is very similar to Z-screw period (1.27 mm). I can't tell exactly but it looks very similar.
I attach image that displays that (Let's imagine gray ground is build table). Surfaces that are perpendicular to build table come out perfectly flat.
I have no ideas about what I can do.
Z-screw seems to be straight, I don't see any wobbling.
Everything seems to be assembled pretty tight. Nothing wobbles/moves.
Also, when detached, build table moves up and down very smoothly, so the friction is not the problem.
I think Z-motor may rotate unevenly, but I replaced it once and still have this issue.
Is there any way to calibrate uniformity of Z-screw rotation? I think that may do the trick.
Or do you have any other ideas?
That problem is very annoying and makes me refuse of using B9 sometimes, when these waves are too hard to eliminate.
PS I made 3d picture because I have no good camera with macro... Sorry