if I do the radial cut with Z depth, it's 90% loosing.
if I do only circle/pocket cut it's like 30% loosing.
but never loose on Z !.
X Y binding or stiff ? I have no idea how to check, but I never bind nor stiff X and Y, I don;t know how to.
very notice loosing when cutting radial on Sphere object, reading the lines sometime stop for split second, it's not smooth reading the gcode lines.
I don't think I have backlash on XY or Z.
the result when cutting sphere is not always the same spot (loosing step)
it's never on Z, I don;t think Z ever loose step, as far as I know.
this been happening since the beginning, but I never notice I though my feed rate is too fast.
now I know is not the feedrate.
I rarely cut Sphere, but since I found this problem I got to solve this by cutting sphere for testing.