A set of freeware applications for viewing/processing P-CAD files.
AutoCad 2014 - AutoCad 2020 batch lisps process
PDF Measuring and Takeoff Software for Construction
AutoCAD batch scripting
Publishing DWG to PDF made simple
3D Engine with some extra features based on the D3x3D Engine for VB6
Additional Tools for AutoCAD Architecture
To build a 3d Printer that uses tine micro-pipette of some micrometers