I got a refurb mini and printed a 40mm cube in pla. My x axis measurement is 39.95mm but the y axis 39.65mm. I have tightened the belts and that did not help at all. I have even tried a new stepper, no change.
In the firmware I set my Xsteps to 100 and Ysteps to 100. I have found these values work better for accuracy when printing PLA on my Taz5’s. Is there any way to fix the Y axis issue or will I need to put in a different value for Ysteps in the firmware?