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If you already have a .pst file but need small updates (e.g., add coolant commands, change G-code format):
Warning: One wrong character can crash your machine. Always test on a simulator first.
Insert this in the pheader post block:
"(PROGRAM GENERATED: ", date$, " ", time$, ")", e$
"(OPERATOR: ", smc_operator, ")", e$
If you cannot find a valid Mastercam 2018 post processor download after reading this guide, your best move is to:
Don’t risk a machine crash for a free download. A proper post is cheap insurance.
Have a Mastercam 2018 post success story or a warning? Drop a comment below — let’s help the CNC community stay safe.
To obtain and update post processors for Mastercam 2018, you can use official manufacturer resources, community libraries, or built-in migration tools to update older files. 1. Where to Download Post Processors
Mastercam Tech Exchange: This is the primary official source for downloading ready-to-run post processors. You must have a linked Mastercam account to access this library, which contains over 3,400 posts.
EMastercam Library: A popular community-driven site where you can download the Mpmaster (all versions) and other specialized posts for free.
Authorized Resellers: For custom machines or specific kinematics, you should contact your local Mastercam representative. They can provide custom-built solutions through partners like Postability. 2. Updating Existing Posts to Mastercam 2018 mastercam 2018 post processor download upd
If you have post processors from an older version (e.g., Mastercam 2017) and want to use them in 2018, follow these steps: Open Mastercam 2018 and go to the File tab. Navigate to Convert and select the Migration Wizard. Choose the Advanced option to select specific folders.
Point the Source folder to your older Mastercam shared files (typically C:\Users\Public\Documents\Shared Mastercam 2017) and the Destination folder to your 2018 shared directory.
Select only Control Definitions, Machine Definitions, and Post Files to speed up the process. Click Finish to complete the update. 3. Manual Installation of New Posts If you have downloaded a new .pst or .mcam-content file: How to update Post Processors - eMastercam.com
To obtain and update post processors for Mastercam 2018 , you should use the official Mastercam Tech Exchange
or contact your local authorized reseller. Mastercam provides a library of over 3,400 ready-to-run post processors, but access typically requires a linked myMastercam account and an active maintenance agreement. Official Sources for Downloads Mastercam Tech Exchange
: This is the primary online repository for registered users to search for and download machine-specific post processors. Authorized Resellers : Your local reseller (such as MLC CAD Systems Axsys Inc.
) is the best source for customized posts or those not found in the standard library. They can provide specific files for your machine and control combination. Installation & Update Methods Once you have the files (usually .mcam-content .mcam-control ), use one of these methods to install or update them in Mastercam 2018 Drag-and-Drop (Content Files) : If you receive a .mcam-content
file, simply drag it into the Mastercam graphics area. The software will automatically extract and place the files in the correct folders. Manual Placement
: If you have individual files, place them in the following default directories: Machine & Control Definitions C:\Users\Public\Documents\shared Mcam2018\CNC_MACHINES Post Files (.pst/.psb) If you already have a
C:\Users\Public\Documents\shared Mcam2018\[MachineType]\Posts (e.g., the Mill\Posts Migration Wizard
: If you are moving posts from an older version (e.g., Mastercam 2017) to 2018, use the Migration Wizard
(File > Convert > Migration Wizard) to update the file architecture to the 2018 format. Activating the New Post
After installing, you must add the machine to your active list to use it: Select the machine type (e.g., Mill) and choose Manage List Find your new machine in the left pane, click to move it to the right pane, and click Installing A Post For Mastercam
Official post processors are rarely available as direct public downloads from third-party sites. Instead, use these verified methods: Official Mastercam Tech Support : The safest way to get a post is through the Mastercam Tech Support portal
or by contacting your local reseller. They maintain a library of over 3,400 ready-to-run posts. eMastercam Community : For common, configurable posts like the popular , you can find version-specific files in the eMastercam Downloads section Machine-Specific Forums
: For niche machines (like Mach3 or Tormach), users often share compatible posts on community forums such as the MachSupport Forum Tormach Forums How to Update Your Post Processor
If you have an older post (e.g., from Mastercam X9) and need it to work in Mastercam 2018
, or if you are preparing to move to a newer version, follow these steps: Use the Migration Wizard : Navigate to File > Convert > Migration Wizard Warning: One wrong character can crash your machine
to specifically migrate shared files like Machine Definitions (.mcam-mmd), Control Definitions (.mcam-control), and Post files (.pst). Verify File Links
: Ensure your Machine and Control definitions are properly mapped. If you move folders, you may need to manually re-link these files within the Machine Definition manager. The "UpdatePost" Utility : For major version jumps, use the built-in UpdatePost user application. This utility helps convert older logic to the newer version's syntax. Manual Installation : If you download a new .mcam-content file, you can simply drag and drop
it into the Mastercam graphics window to install it automatically. Post-Installation Checklist post processor to earlier version? - eMastercam.com
To obtain or update a post processor for Mastercam 2018, you can follow several official and community-driven paths. Direct downloads for specific machine posts are often facilitated through authorized resellers or dedicated industry libraries. Official & Trusted Sources Mastercam Post Library : Mastercam maintains a library of over 3,400 ready-to-run post processors
covering Mill, Lathe, Mill-Turn, Swiss, Router, and Wire. You can search for your machine and control combination on the Mastercam Solutions Local Resellers
: For custom or machine-specific posts, the primary recommended step is to contact your local Mastercam Reseller
. They can provide custom builds or edits, often for free if you have a maintenance agreement. Mpmaster (eMastercam)
: A popular, high-quality universal G-code post for Mastercam 2018 is the , which can be downloaded from the eMastercam Downloads eMastercam.com How to Install a Downloaded Post (.mcam-content) If you receive a post as an .mcam-content file, the installation is straightforward: Launch Mastercam 2018 Drag and drop the file directly into the Mastercam graphics window. The system will automatically extract and place the Machine Definition Control Definition file into the correct shared folders. Updating Older Posts to Mastercam 2018
If you have a post from a previous version (like Mastercam X7), you can use the built-in Update Post Update Mastercam Post Processors 2021 | PDF - Scribd
Before updating, know what you have:
To see the post’s internal version: