CFDTool - Easy to Use Computational Fluid Dynamics (CFD) Toolbox
Precise gear geometry generator for spur and helical gears
Linux tiny CAD for educational purposes
A set ot tools for surveyors addon to many CAD environments
Free cad viewer for 3d drawings in different formats
Solve Alignment of Road , Rail,Tunnel
Stavařská nadstavba pro AutoCAD a IntelliCAD.
Open Source Planar Linkage Mechanism Simulation and Synthesis Software
CAD 2D for Land Surveying and Civil
Open Source FabLab Project
OpenNum lets you distribute solvers with a nice graphical interface
Free 3D Mobile CAD
Traveling Salesman Problem (TSP) Solver
NURBS-based elastic and limit analysis of masonry arches in MATLAB
3D modeling tool based on the NURBS surfaces
Open DXFs with QCad
Parallel finite element analysis