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