a parametric 3D CAD modeler
The programmer's solid 3D CAD modeller
A math-inspired CAD program in haskell. CSG, bevels, and shells
Cross-platform Open-source 2D CAD
Model Railway CAD program
DXF2GCODE: converting 2D dxf drawings to CNC machine compatible G-Code
An interactive viewer for three-dimensional chemical structures.
A Cross Platform and Open Source Electronics Design Automation Suite
Free and open source pattern design software
Open-Source Multiphysics FEA (FEM) Package
A Full PLM system based on odoo
Draw vector graphics to scale using a descriptive language
LibrePLM integrates CAD editors in Odoo / LibrERP
An EnergyPlus shell for parametric studies and more ...
Static and Dynamic Structural Analysis of 2D and 3D frames.
very good CAD software
Simple Road Design and Earthworks
Draw curves, colored 2D maps with CAD capabilities
RHT-LA : Applicatif Tracé Ligne Aérienne HT