Hello all,I am starting out finding my way around the tiny Vertex Nano printer (belt x and y, threaded rod z, no heat bed). Prints are actually coming out decent. This is nice.

So, as far as my metrology allows, it seems my x and y dimensions are ~0.2 mm too small while z is ~0.6 mm too large. I have not done a lot of prints, but this is true for different sizes so I'd say these are absolute, not relative, errors.

I use the Addnorth PLA filament, untouched firmware / printer settings, and no spectacularly odd slicer (cura) settings. For the X and Y, I possibly underextrude, will have to check. The large Z may be related to printer hardware, there is a slack in z axis motor mounting but I feel 0.6 mm is more than expected if this is the explanation. I am trying to remedy this though. It's a little bit hard to reach (and the shims I print have weird heights, as it were.)

Any suggestions to things to consider or try? Thanks!