I have a co-worker who has a cylindrical cut he's trying to do. It's helical to a point, then there's a complex geometry at one end, wrapping around the curvature of the cylinder.

Wrap works fine for getting his profile onto the surface of the cylinder, but if you deboss it, the groove tapers to the bottom. What we need is a contour that emulates a CNC with a fixed endmill plunging directly down into the cylinder's face, while the cylinder rotates around its axis and moves back and forth to create the complex geometry.