When I loaded the g code it scrolled to this line on the code and gave this message. "Radius to end of arc differs from radius to start line." It was code that was completely wrong for the piece I was cutting. What exactly does this message mean?

IT will mean one of two things EITHER you programmed the arc incorrectly OR you need to configure the IJ's as to inc or abs.

(;-) TP

Thanks, that was indeed the problem. Could you tell me under what circumstances one would use absolute?

Absolute could be used when you part drawing has all the center lines given. Most operators I.ve worked with want radius or inc JK. Just what they are use to. I tried it once ans confused the operators.

Thanks, that was indeed the problem. Could you tell me under what circumstances one would use absolute?

Just a matter of personal preference, or whatever format your CAM program supports. Incremental is by far the most common.

Thanks, I appreciate your responses.