2011 10 26 CNC attempt 1

2011-10-26 CNC attempt #1

Mark Belanger from Edgerton says that he can easily make a toolpath from a DXF, so I've written a DXF output mode for my pattern printer. It's working great as of commit 3e672ccdec22d88ed952499c801e6114f4415060, and it actually outputs much faster than matplotlib can print. I've done a simple cube model and put the output in CNC_1. I'll try this out on the machine tomorrow.