Tom,
I do cnc porting of cylinder heads and have only uised a touch probe to get my point cloud information. Your method would seem to be the cat's meow so to speak if only it would scan something like the internal surfaces of a cylinder head port. Also to machine a part on my machine it is more than trying to create g code from a point cloud. We have to have an actual surface that we can generate a tool path from. It would be really nice to be able to optically scan my parts and if there would be anything that I could do to contribute to your project, just say the word,
Larry Coyle
Cylinder Head Engineering, LLC