KiCad EDA Suite in PortableApps.com format
Helps with the Mach3 CNC Threading functionality
A Free/Open Source Gerber (RS-274X) Viewer in PortableApps.com format
The full-featured, easy-to-use desktop GIS with real processing power!
Tool used to estimate the quantity of bricks, cement and sand required
Revision control for hardware, engineering and scientific projects
Visual comparison tool for difference in image and CAD files.
Portable feed & speed calculator for turning and milling