a parametric 3D CAD modeler
A CAD application for creating virtual LEGO models
A 2D CAD application for civil engineering , built with Free Pascal
very good CAD software
PyAMS (Python for Analog and Mixed Signals) CAD approach
Model Railway CAD program
CAD Application entire developed in Python
Free and open source pattern design software
LibrePLM integrates CAD editors in Odoo / LibrERP
Free pcb editor
Free software for maps
Solve Alignment of Road , Rail,Tunnel
Free Invoice & Billing Software for Windows, Linux & Mac
Create and edit LDraw™ parts quick and easy.
Open Source Desktop GIS with Surveying and Cartography Functionality
GDSread reads and converts Calma GDS stream files .
The programmer's solid 3D CAD modeller
Cross-platform Open-source 2D CAD
SOLVESPACE is a free (GPLv3) parametric 3d CAD tool.
Free CAD software
Helps with the Mach3 CNC Threading functionality
CAD application for Technical Drawing exercises
Lightweight L5e vehicle with freely accessible engineering documents