Progecad Portable !link!

The primary benefit is mobility. You can install progeCAD Portable onto a USB flash drive or an external hard drive. This allows you to plug the drive into any Windows PC and launch the software immediately. Your workspace, customized interface settings, and even recent file history can travel with you.

Unlike many open-source alternatives, ProgeCAD offers a familiar ribbon interface, LISP support, advanced 3D modeling tools, and rendering capabilities. It is often adopted by companies looking to reduce software costs while maintaining a 100% DWG workflow. progecad portable