The OP was asking about 2.5d work and getting interpolation of arcs/circles. The VM settings should fix that. Note that there is also a setting in the circle tab of the post configuration that can be set to segment circles (ie 180 degrees) if the controller needs that. That should make it use multiple G02/3.
In 3d solids/mesh work most CAMs do interpolation of the surface using G01's based on accuracy settings in the software. Higher accuracy means more short lines and code. I haven't set up VM since a computer change but I checked some old programs and they were all G01's for surfacing. I don't know about madcam. |