This is why simply copying an old .pst file into your 2018 folder often leads to errors or the post not appearing in the selection menu. Mastercam provides a built-in tool for precisely this reason: the . Using this tool is the officially supported and most reliable method to bring a post processor into the current version.
After installation, you can verify the post processor version by opening the .pst file with Notepad. If the first line contains "V20.0 W20.0", this indicates the file is already a Mastercam 2018 post processor file.
Only use posts specifically built for Mastercam 2018 (or earlier, like 2017, with caution). Open the .pst file in Notepad and check the header line: # Post Name: HAAS_VF2 and # Mastercam Version: 18.0 . mastercam 2018 post processor download upd
While you can find many posts for free, be aware that complex or highly customized post processors are often commercial products that may carry a cost.
The search results were a minefield. Old forums, broken links, and sketchy file-sharing sites promising the world but delivering viruses. He skipped past the "Mastercam X5" links. Too old. He ignored the paywalls. The budget was tight. This is why simply copying an old
| If you... | Then... | |-----------|---------| | Have an active maintenance contract | – posts can be migrated automatically via the UpdatePost utility. | | Don’t have maintenance | Buy a one-time post update from your reseller ($200–$800). | | Just need a generic post | Use the Generic Fanuc 4X Mill.pst included with Mastercam 2018 (found in the Posts folder). |
Effectively managing post processors for Mastercam 2018 is a fundamental skill for any CNC programmer. By understanding the components, knowing where to find reliable sources, and mastering the proper installation and update procedures, you can ensure a smooth, efficient workflow from design to finished part. When in doubt, remember that your Mastercam reseller is your most valuable resource for obtaining the correct, fully-tested post processor and getting the professional support you need. After installation, you can verify the post processor
Ensure that edited post processor files are saved with ANSI or UTF-8 encoding. Saving with incorrect encoding can render the file unreadable by Mastercam. To get the exact post processor you need, tell me: What brand and model is your CNC machine? What controller does it use (e.g., Fanuc, Haas, Siemens)?