hi
i use the mach3 controller software for the cnc mill . i am cutting pocket and profile and the pocket and profile is calibrate but cutting a hole circle profile is do not have calibrate circle  for example 0,90,180,270  degree is calibrate but 45,225 degree  is 0.1 less and  135,315 degree is 0.1 large  and do not calibrate

please help me for this problem thanks