Quote Originally Posted by TrickyCNC View Post
I'd have thought that was more of a Cam operation than a front end op. ?
Yep, either will do it with the right code. Just height map the part using a probe, which should be easy if it's metal as you can use a pointy bit and the part as the switch, then you effectively need to apply that transformation to existing code, or import the pointlist into a CAD program as a surface and use that to generate the code. There's plenty of CAM programs which will do the latter.