You must log in using a validated account linked to an active Mastercam maintenance contract.
Your local Mastercam Reseller (VAR) is the single best source for post processors. They maintain a vast library of proven, factory-tested posts for thousands of machine and controller combinations.
The official repository for licensed users (including Mastercam Maintenance customers). It hosts over 3,400 ready-to-run posts for various machine/control combinations like FANUC, Haas, and Siemens . Mastercam Post Processors Download
Note: Mastercam Learning/Demo editions exclude post processors and cannot post valid G‑code for CNC machines.
For older or non-packaged posts, you can manually copy the files: You must log in using a validated account
(Lathe), which often include more features than standard generic posts. Management & Integration Features Post Processors | Mastercam
Copy your downloaded .PST (and .PSB if applicable) files directly into the corresponding \Posts\ folder. If you also downloaded matching Machine Definition ( .mcam-mmd / .mcam-lmd ) and Control Definition ( .mcam-control ) files, place them in the parent Shared Mastercam 202X\CNC_MACHINES\ folder. Step 3: Manage via the Machine Definition Manager Open Mastercam. Go to the tab on the ribbon. For older or non-packaged posts, you can manually
provide a community-driven area to download free "master" posts like (Mill) and
In Computer-Aided Manufacturing (CAM), the precision of your G-code determines the efficiency of your machining. Mastercam stands as an industry-leading software for generating complex toolpaths. However, those digital toolpaths remain useless until they are translated into language your specific CNC machine understands. This critical translation happens through a post processor.
Inside Mastercam, your programmed toolpath exists as conceptual motion data. The post processor is the critical text formatter that structures this data into the specific syntax and format required by your machine's controller—whether it's FANUC, Siemens, Heidenhain, or another brand. It doesn't just write G-codes like G00, G01, and M03. It also dictates the program's structure, the formatting of coordinates, the execution of tool changes, the management of coolant commands, and the implementation of complex multi-axis motions.