No permanent free version exists. However, Autodesk provides a 30-day free trial of PowerMill 2021 (and newer versions) directly from their website.
NVIDIA Quadro or equivalent with at least 2 GB VRAM (OpenGL 2.0 compatible). Disk Space: 160 GB of free space for installation. Why Choose the 2021 Version? Autodesk PowerMill 2021 Free Download - Detaile...
| Software | Free Option | Best For | |----------|-------------|----------| | | Complete free | Basic 3-axis CAM | | Fusion 360 Personal | Free for hobbyists | 3+2 axis machining | | ESTLcam | Free | Simple 2.5D milling | | LinuxCNC | Open source | DIY CNC routers | No permanent free version exists