DXF2GCODE: converting 2D dxf drawings to CNC machine compatible G-Code
a parametric 3D CAD modeler
3D/2D Concrete Reinforcement in Bentley MicroStation
A Full PLM system based on odoo
CFDTool - Easy to Use Computational Fluid Dynamics (CFD) Toolbox
Extensible Line-drawing & Polygon-filling Rasterization Libs for Java
Static and Dynamic Structural Analysis of 2D and 3D frames.
converts between IGES file and text file
Design your own pottery for 3D printing in full color
2.5D CAD CAM emphasis on CAM and toolpaths
Software to analyse 3D and 2D framed structures, also gives matrices