New Autocad 2018 Portable [updated] (Must Read)
For 3D conceptual design, BricsCAD Shape is completely free, installs to a USB drive, and reads/writes .dwg and .dxf . It is lightweight (under 200MB) and requires no license or online activation.
The 2018 release was a major milestone that prioritized efficiency and modern display support. Key enhancements include: New AutoCAD 2018 Portable
The software also included a range of security features, such as password protection and data encryption, to ensure that John's designs and intellectual property were safe. For 3D conceptual design, BricsCAD Shape is completely