Design Resources
From PROBOTIX :: wiki
http://www.toymakingplans.com/website/index.php?cat=bestsellers
G-Code Generators
http://home.mnet-online.de/erikschuster/sw.htm#simplegcodegenerator
CAM Software
Half-tone CNC
http://jasondorie.com/page_cnc.html
http://www.students.tut.fi/~syvajar3/
https://github.com/evil-mad/stipplegen/releases/tag/v2.31
Dovetail Maker
3D Models