I'm working on an old mori seki sl-2h lathe and using mastercam x4 to do a full radius front end of a part. The post is made for a positive x value machine so it post to all positive x and I have to change the positive x to negative x for the machine which programs in negative x. Im using G03 and the radius seems to want to run inverted, least thats what looks like will happen. Do I need to change my r value to a negative in order to get the center point in the proper quadrant?