A CAD application for creating virtual LEGO models
Virtual Satellite
DXF2GCODE: converting 2D dxf drawings to CNC machine compatible G-Code
Simple Road Design and Earthworks
Editor for Zometool models
Free multiphysics simulation software package
This plugin exports G-Code for a wirecutter
3D CAM program for CNC mills/lathes
CNC machine code generation for 3D models
CNC control software