I have a fanuc 0M-D on a hardinge vmc1000 and i'm sure that it could do better. In circular interpolation, even at low speed or with a great radius, error is abominable. If I cut different diameter with the same tool, I must put different offset for each diameter. Servo software version is 9046-09. I'm reading some fanuc manual about the subject, but all the options that could help me are only available on more recent software version. Any help??