Free and open source pattern design software
a parametric 3D CAD modeler
conducteö - logiciel de calcul des ponts thermiques linéiques
Open-Source Shoemaking
Solve Alignment of Road , Rail,Tunnel
An EnergyPlus shell for parametric studies and more ...
Virtual Satellite
Software for electromagnetic simulation
Extensible Line-drawing & Polygon-filling Rasterization Libs for Java
Cross-platform Open-source 2D CAD
2D CAD software
Static and Dynamic Structural Analysis of 2D and 3D frames.
cppcam is a 3D CAD app for drafting G-Code toolpaths for CNC Routers
CAD Application entire developed in Python
A canvas library for generating technical drawings
Free CAD software
Open Source Planar Linkage Mechanism Simulation and Synthesis Software
Geometric kernel for CAD programs using an atomic approach
OpenNum lets you distribute solvers with a nice graphical interface