Attached Link: http://www.microproto.com/micromill2000.htm

It can be done with a 4-axis milling machine. Heres a link http://www.microproto.com/micromill2000.htm I think this machine with the 4th axis add on would do the job. (You`d have to ask them for full details) Try searching for "micromill" or "taig". The 3d model has to be converted to milling machine paths (g-code, software is available to do this) which the computer sends to the motors of the milling machine, the cutters then move to carve the object out of foam/wood/metal etc. My other half has a 3 axis machine, which cost about $2000, unfortuantley it wont do full 3d figures or I`d be playing with it all the time! Hope this is helpful.