Open-source parametric 3D CAD for makers
Libre and open source desktop application to create diagrams
Free and open source pattern design software
Open-Source Shoemaking
Cross-platform Open-source 2D CAD
Open Source Planar Linkage Mechanism Simulation and Synthesis Software
Free multiphysics simulation software package
An Open source Analysis and SImulation Toolbox for Fuel Cells
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)