Have Monarch mill with Fanuc 16-m. While flowline 3d surfacing - most of the motion is in x z axis there are very small moves (+/- .0001 in y axis) within the program. The machine is overshooting these minute y moves leaving dings in the surface finish. looks really bad. The old machine has axis scales. The back lash parameter for y axis is set at 5 whatever that translates to not sure but seems really low for age.
any one know what's going on?