To answer your original question try www.dreesecode.com

I have used the program SNACK from this company for generating airoil coordinates, it is available as shareware from

http://www.totalshareware.com/asp/detail_view.asp?application=1220

Its pretty good for getting 2D coordinates which I guess is all a CNC foam cutting machine can handle, if it can cut more complex shapes (3D) could you let me know.

Good luck

Gareth