Recognizing the results of calibration

[Yasamal33]

I’ve also found this post with similar issue, where cut size doesn’t match model size

Cuts consistently 5mm short in height regardless of size but not in width

I’m running into an issue Im not sure what to do with: I cut 3 test squares, 150mm, 300mm, 450mm tall each of them was 5mm short in height, BUT their width is correct. the gcode is simple enough to manually check. It looks correct. When I cut squares the difference between X coordinates was the same as diff between Y coordinates, so it should be square. the offset doesnt seem to be proportional to size, it’s just consistent. What could this be?

So I’m going to re-check all calibration measurements again.

I’m also looking for the way to correct measure “Height of Motors Above Workspace”.
Could someone say is there any “user friendly” explanation of this?