Thanks Ben.

Yes I have been thinking about a 4th axis but budget is a cruel mistress.

You are spot on regarding the heal depth on a full body jazz guitar. I had been mulling that one over myself these last few days.

There are several ways to get round this:

1) Build laminated necks.
2) Build thinner bodies
3) Build a 2piece heal or a shallower heal with a thick cap. Kind of like the Benedetto style.

I thought I had worked out all the CAD CAM stuff (ignorance is bliss), so your Mach3 addition made me interested in why you have that extra stage between f360 and UCCNC. Is it because you wanted a controller so you didn't have to run a PC all the time?
That's what I would like to do. Saves the PC crashing and your work going down the pan.

Regards

Archy