An open source harness for generating CAD models
Virtual Satellite
a parametric 3D CAD modeler
Free and open source pattern design software
DXF2GCODE: converting 2D dxf drawings to CNC machine compatible G-Code
conducteö - logiciel de calcul des ponts thermiques linéiques
CFDTool - Easy to Use Computational Fluid Dynamics (CFD) Toolbox
An EnergyPlus shell for parametric studies and more ...
LibrePLM integrates CAD editors in Odoo / LibrERP
GDSread reads and converts Calma GDS stream files .
Open-Source Multiphysics FEA (FEM) Package
Open source Matlab code for nonlinear isogeometric analysis
cppcam is a 3D CAD app for drafting G-Code toolpaths for CNC Routers
This program calculate hexagon coordinats for CNC Mill.
CAD 2D for Land Surveying and Civil
This plugin exports G-Code for a wirecutter
A designer’s program for describing parts of the building
2.5D CAD CAM emphasis on CAM and toolpaths
CNC machine code generation for 3D models
CNC control software
Binary Downloads for the RepSnapper RepRap Controller
ALST is a CAD for all imaginable logic systems (binary, ternary, etc)