very good CAD software
Um simples software de navegação 3D, desenvolvido em Java.
Software for electromagnetic simulation
Cross-platform Open-source 2D CAD
Dedicated to computer-aided engineering Linux distribution
Free multiphysics simulation software package
A package for Isogeometric Analysis in Octave and Matlab
library to read dwg & read/write dxf files
Cuts 3D objects from polystyrene foam (EPS/XPS)