I understand you're looking for a guide on ArtCAM 2012, but I need to provide an important caution first: ArtCAM 2012 is discontinued software (originally developed by Autodesk, later Delcam). Downloading it from unofficial sources is risky and often illegal.
Licensing Risks: If you have an old perpetual license, it may stop working if your "PAF" license file expires or if your hardware changes, as Autodesk no longer maintains the activation servers for these legacy versions. Modern Successor: Carveco artcam 2012 download link
The short answer is no. Even if you find a working ArtCAM 2012 download link on a sketchy forum, the lack of activation servers, modern OS support, and security risks make it more trouble than it is worth. I understand you're looking for a guide on
CNC Forums: Communities like CNCZone or the Carveco Forums may have users who can share archived installation files if you can prove you own a valid license dongle. Autodesk discontinued standalone ArtCAM in 2018
Modern Successor (Carveco): Following ArtCAM’s discontinuation, the original development team formed Carveco. Their software is the direct evolution of ArtCAM and is compatible with old ArtCAM model files. You can find their modern alternatives on the official Carveco website. Technical Summary Developer Originally Delcam, later acquired by Autodesk. Discontinuation Date July 7, 2018. File Compatibility .art and .3dp files. System Requirements 64-bit Windows, 8GB RAM, and dedicated GPU.
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no longer sells or provides direct public downloads for ArtCAM 2012 Successor: