These are pictures of the CNC I made. I'll publish links and other details later.
I built this because I had to build parts for another Christmas Display and since I can't carve worth a darn, figured I'd let the computer do the hard work.
The base, made of MDF, ends and side made from scrap
lumber
The X axis onto which the Z axis and spindle are mounted
The first thing I carved with my unit, in hardwood
The second thing I carved, in Styrofoam
A close-up. Try and do this by hand.