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a parametric 3D CAD modeler
DXF2GCODE: converting 2D dxf drawings to CNC machine compatible G-Code
A Cross Platform and Open Source Electronics Design Automation Suite
Open-Source Shoemaking
CFDTool - Easy to Use Computational Fluid Dynamics (CFD) Toolbox
Static and Dynamic Structural Analysis of 2D and 3D frames.
cppcam is a 3D CAD app for drafting G-Code toolpaths for CNC Routers
Free 3D Mobile CAD
Simple CAD program
A designer’s program for describing parts of the building
3D CAM program for CNC mills/lathes
Cuts 3D objects from polystyrene foam (EPS/XPS)