i have a challenger microcut machining centre and im trying to rigid tap, the machine has an 8055i controller on it and i think the problem is synchronisation between spindle rpm and feed.
at higher Rpms 1000 and above there is no problem i think the speed fudges the encoder resolution.
at lower speeds below 1000 rpm i think the encoder which is capable of 8000 rpm is "in the weeds" so to speak and tends to multiply the following error.
anyone have any solutions to this problem? i dont want to tap 1/2-13 at 1000 rpm.......