Back to square one. Does anyone here know if I can use Mach3 for surface grinding?
Any suggestions on CAD to g-code software?
Any suggestions for a small high-quality CNC surface grinder - OR - someone to convert a SG to CNC?
1). Yes Mach3 Can
2). CAM program, How much you wanna spend? I use OneCNC XR2 Mill , but there are others Master CAM, Gibbs, Delcam, etc. you can set your cut depths in these programs, and they will all take a 3D model and machine it.
3). I can convert one for you, BUT, In your case with all the concerns involved, I would build a custom job. I would get some C-0 screws/ballnuts, all machine services ground professionally (possibly Scraped by a pro). ABEC 7's on your spindle, plus have the Spindle assembly Ground insitu to keep runout to a minumum. Again the question would be, How much you want to spend? To convert would be cheaper, but, you will be adapting the machine to do your specific job, (can be done, but you might have to make comprimizes).
Resoulution: You can go with things like AC servos with 10,000 count encoders and set up your motor profiles for some fine resoulution.
I suspect you would have to make some type of extra accomodations for Temperature control. The Tolorances your talking about even temperature can effect. Your material, I would stress relieve it prior to machining it (IF you can do that with them).
scott