Hello everybody, we're new in cnc machining and recently we're having trouble with a cnc mill that have Fanuc 6mb control, the issue comes when make a circular interpolation and the result is not a perfect circle, example 6" inside diameter if we measure in Y axis is 6.005" and X axis 5.998", we obtain and oval. We are loooking in internet for information about this issue and for maintenance manual of fanuc 6mb without any luck. We think that servos don