A CAD application for creating virtual LEGO models
DXF2GCODE: converting 2D dxf drawings to CNC machine compatible G-Code
Cross-platform Open-source 2D CAD
Static and Dynamic Structural Analysis of 2D and 3D frames.
A canvas library for generating technical drawings
Open Knowledge on engineering development.
library to read dwg & read/write dxf files
Drawing robot for electrical interconnection diagrams in DXF.