Rounded Corners in Y-Direction

Scale this test pattern to fit the platform and run it as fast as it will go in Line mode with optimizations turned off and power set to mark cardboard:

GrundTest.lbrn2

Any distortion in the results on the cardboard indicates a mechanical problem.

That’s necessary, but not sufficient. If the test shows any backlash, then the hunt begins:

In particular, note this series of fixes / adjustments:

Good hunting!