Free and open source pattern design software
a parametric 3D CAD modeler
FEATool Multiphysics is an easy-to-use FEA and CFD Simulation Toolbox
CFDTool - Easy to Use Computational Fluid Dynamics (CFD) Toolbox
An EnergyPlus shell for parametric studies and more ...
Cross-platform Open-source 2D CAD
Free 3D Mobile CAD
Application Integration for HPC Multiphysics
Simple CAD program
A package for Isogeometric Analysis in Octave and Matlab
walterbot: Virtual presence device www controlled with a raspberrypy