When I try to make a high model, it happens that at the height of about 37mm, the x axis skips/jumps about 3mm to the left.
Alway at this height. Smaller models are perfect. All axis are well lubricated.
I have had the same problem at exact at the same height. The problem was solved by placing the model at another location of the flat bed. When assembling the device I noticed that some linear bearings moves stikcy. Perhaps this is crucial in combination with some particular movements.
I have same problem but it happend 2.1mm height. Not everytime but when it happend it was that height. Motor voltage is 0.55V and everything move smooth and nice. I try next that placing at another location but it was nice to know why that happend that same location.