(originally by Delcam, later Autodesk) is a commercial CAD/CAM software for CNC machining, jewelry design, and woodworking. Version 8.1 is very old (released around 2008–2010). Autodesk discontinued ArtCAM in 2018.
If you can get a legitimate copy running on an older machine, It does not have the bloat of modern software; it opens fast, calculates toolpaths fast, and gets the job done. Artcam Pro 8.1 Free Download
The original ArtCAM development team launched Carveco, which is the modern, supported version of this software. (originally by Delcam, later Autodesk) is a commercial