a parametric 3D CAD modeler
CAD Draw, CAD Control, printing, C/C++,.NET Source Codes
The programmer's solid 3D CAD modeller
Use Autodesk Fusion 360 on Linux
Link branch FreeCAD
A free and open source multiplatform 3D parametric modeler
A python parametric CAD scripting framework based on OCCT
A math-inspired CAD program in haskell. CSG, bevels, and shells
A CAD application for creating virtual LEGO models
Examples and demos for the pythonocc CAD package
Fronend CAD flow for IP creation, QC, IP Packaging and HandOff
Cross-platform Open-source 2D CAD
Virtual Satellite
An interactive viewer for three-dimensional chemical structures.
Model Railway CAD program
DXF2GCODE: converting 2D dxf drawings to CNC machine compatible G-Code
very good CAD software
A Cross Platform and Open Source Electronics Design Automation Suite
KiCad EDA Suite in PortableApps.com format
Open-Source Multiphysics FEA (FEM) Package
Free and open source pattern design software
Static and Dynamic Structural Analysis of 2D and 3D frames.
An EnergyPlus shell for parametric studies and more ...
Draw vector graphics to scale using a descriptive language