Here's project that came out pretty cool. Files are scaled to cut
in .750 (19mm) Acrylic. Took about 45min with 1/4 ball mill. Looked
kind of like a X-ray once we got it lit up. On the eye sockets
there's some relief carry over. If you touch off Z then +.04 and set
Z-zero there, it won't transfer to the Acrylic.