Free 3D Mobile CAD
AVR simulator IDE
A debian image with linux RT kernel, OpenCV345, ROS, and LinuxCNC
Open DXFs with QCad
2.5D CAD CAM emphasis on CAM and toolpaths
Modular CNC software for Arduino controller
Universal CNC
qnutCNC is a program to control the ethernut development board
4.4BSD-based UNIX-like operating system for CNC / machine control