a parametric 3D CAD modeler
A math-inspired CAD program in haskell. CSG, bevels, and shells
A CAD application for creating virtual LEGO models
A Cross Platform and Open Source Electronics Design Automation Suite
Free and open source pattern design software
An EnergyPlus shell for parametric studies and more ...
Simple Road Design and Earthworks
Open source Matlab code for nonlinear isogeometric analysis
Open source 3D software based on opencascade(CAD)
Extensible Line-drawing & Polygon-filling Rasterization Libs for Java
BoltGenerator is an automated CAD tool which produces 3D bolts.
Open Source Planar Linkage Mechanism Simulation and Synthesis Software
Design your own pottery for 3D printing in full color
Open-Source Shoemaking
Secondary glazing for sash windows
A VBA enabled EXCEL spreadsheet to calculate water-wave properties
2.5D CAD CAM emphasis on CAM and toolpaths
Open Knowledge on engineering development.
CT Soft is software designed to be used with Control Techniques Drives
A designer’s program for describing parts of the building
openCDT is a conceptual design tool for aircraft design
2D Frame Analysis, Linear Static Analysis, Mode Shapes