Free software for maps
Editor for Zometool models
Design your own pottery for 3D printing in full color
Revision control for hardware, engineering and scientific projects
library to read dwg & read/write dxf files
Tekla IFC Tagger
Binary Downloads for the RepSnapper RepRap Controller
ALST is a CAD for all imaginable logic systems (binary, ternary, etc)
Cuts 3D objects from polystyrene foam (EPS/XPS)