I am thinking of ways to machine on the outside of a ring/diameter using a rotary axis.

1, Take XYZ path substitute A for Y then reconfigure the motor to rotate based on the circumference of the machined diameter.

2, Run machine with the A configure as in Y and rotate based on the circumference of the machined diameter.

3, Scale the Y axis into degrees by a factor given the circumference of the machined diameter.

4, convert the Y values in degrees by Y / circumference of the machined diameter * 360.

Or is there another way?