I had an issue with my MK4, X axis calibrations failed and I found it was due to Love board right cover was in touch with trapezoidal nut / trapezoidal nut screw during the movement to the right. I tried to re-seat it but still no success. Without the cover, test passed successfully.
I managed to solve x axis calibration failure by redesigning love board cover and now it passes x axis calibration without any issue. If you have similar issue you can try print this version.
There are two files versions:
I printed with PETG, while logo side is facing the bed. 0.20mm Structural profile. Supports are required.
The author marked this model as their own original creation.