a parametric 3D CAD modeler
An EnergyPlus shell for parametric studies and more ...
Software for electromagnetic simulation
Cross-platform Open-source 2D CAD
Static and Dynamic Structural Analysis of 2D and 3D frames.
A canvas library for generating technical drawings
OpenNum lets you distribute solvers with a nice graphical interface
Precise gear geometry generator for spur and helical gears
Linux tiny CAD for educational purposes
COPanno optimizes the panels cuts.
Free multiphysics simulation software package
A designer’s program for describing parts of the building
A package for Isogeometric Analysis in Octave and Matlab