a parametric 3D CAD modeler
A CAD application for creating virtual LEGO models
A Cross Platform and Open Source Electronics Design Automation Suite
Free and open source pattern design software
Simple Road Design and Earthworks
BoltGenerator is an automated CAD tool which produces 3D bolts.
Open Source Planar Linkage Mechanism Simulation and Synthesis Software
Design your own pottery for 3D printing in full color
Open-Source Shoemaking
Application Integration for HPC Multiphysics
2.5D CAD CAM emphasis on CAM and toolpaths
Open Source CAD
3D modeling tool based on the NURBS surfaces