cppcam is a 3D CAD app for drafting G-Code toolpaths for CNC Routers
Free 3D Mobile CAD
Packing two dimensional rectangular elements at orthogonal table
Arduino Powered 60 RBG Pixel Clock, with 24h alarm and count down.
A CAD/CAM Package for CNC GCode Creation
Cuts 3D objects from polystyrene foam (EPS/XPS)