LibrePLM integrates CAD editors in Odoo / LibrERP
Free and open source pattern design software
a parametric 3D CAD modeler
Simple Road Design and Earthworks
A Full PLM system based on odoo
Open-Source Multiphysics FEA (FEM) Package
cppcam is a 3D CAD app for drafting G-Code toolpaths for CNC Routers
A canvas library for generating technical drawings
Free 3D Mobile CAD
An Open source Analysis and SImulation Toolbox for Fuel Cells
2.5D CAD CAM emphasis on CAM and toolpaths
CNC machine code generation for 3D models
ALST is a CAD for all imaginable logic systems (binary, ternary, etc)
Gesture based movement with CATIA