Hi guys,

I have a Felix 2.0 with Repetier Host, been printing happily for many years.

But I might have a calibration issue, let me explain:
- My CAD file is simply a 30mm D cylinder
- The height of the printed cylinder corresponds to my CAD file, so no calibration needed in Z
- The Y dimension of the printed cylinder is pretty much 30.00 mm
- But the X dimension is 30.34 mm

So I should calibrate the printer by playing with the firmware settings. But:
- the maximum diameter of my cylinder is not on the X axis, it's roughly at 45 degrees from the X axis (or Y) and is 30.60mm
- the minimum diameter of my cylinder is not on the X axis, it's roughly at 45 degrees from the X axis (or Y) on the opposite side and is 29.67 mm

So basically my cylinder is more like an oval with the longest dimension between X and Y axis.

I'm not sure how to fix this problem. Looks like I need to change the X and Y step but if I do then my Y dimension which is correct will not longer be after ?