Mastercam 2019 Update 1

We have just released Mastercam 2019 Update 1 to the general public. You can find the downloads for Mastercam and Mastercam 2019 for SOLIDWORKS in the Support/Downloads section of

There are two ways to install Mastercam and Mastercam 2019 Update 1 for SOLIDWORKS on your system:

  1. A full USB and web installation are available for download on If Mastercam (version 21.0.17350.0) or Mastercam for SOLIDWORKS 2019 (version 21.0.17350.10) is not installed on a system, this must be used.
  2. A patch installation is available for download on or through the Automated Update System. It is therefore not necessary to uninstall the RTM build to upgrade to Update 1.

Notes on 2019 Update 1:

  • Version information
    • Mastercam version number 21.0.18440.0.
    • Mastercam for SOLIDWORKS version number21.0.18440.10.
  • The maintenance cutoff date for this release is May 31, 2018, which is the same as the RTM build. If maintenance expires on this date or later, Mastercam 2019 will run. If it expires before this date, it will not run.
  • This version will not time out.
  • This is a standalone version and can be installed with other Mastercam versions on your machine. Prior versions of Mastercam 2019 with the exception of 21.0.17350.0 or 21.0.17350.10must be uninstalled before using this build. Uninstallation instructions can be found below.

Uninstalling previous Public Beta or Technology Preview builds:

  • Backup any files you may wish to save
  • Uninstall any previous 2019 Beta or Tech Preview build(s)
    • Open Windows Control Panel
    • Select Programs and Features
    • Right click on the product you wish to uninstall and select Uninstall
  • Delete the following folders
    • For Mastercam:
      • c:\Program Files\mcam2019
      • (Optional): C:\Users\your logon\Documents\my mcam2019
      • (Optional): C:\Users\Public\Documents\shared mcam2019
    • For Mastercam for SOLIDWORKS
      • C:\Program Files\McamforSW2019
      • (Optional) C:\Users\your logon\Documents\my MCamforSW2019
      • (Optional) C:\Users\Public\Documents\shared mcamforsw2019
  • Delete the following registry keys
    • For Mastercam:
      • HKEY_CURRENT_USER\Software\CNC Software, Inc.\Mastercam 2019
      • HKEY_LOCAL_MACHINE\SOFTWARE\CNC Software, Inc.\Mastercam 2019
    • For Mastercam for SOLIDWORKS:
      • HKEY_CURRENT_USER\Software\CNC Software, Inc.\Mastercam 2019 for SOLIDWORKS
      • HKEY_LOCAL_MACHINE\SOFTWARE\CNC Software, Inc.\Mastercam 2019for SOLIDWORKS

Installation Instructions:

  1. Click on this link and log in:
  2. Select the version you would like to download (Mastercam or Mastercam for SOLIDWORKS).
  3. Download the appropriate files for your install.
    1. If web installs were selected, after the file has downloaded, double-click the .exe to begin the installation.
    2. If the USB (.ZIP – includes Mastercam and Mastercam for SOLIDWORKS installs) file was downloaded, unzip the file to a location on your computer and double-click the launcher.exe to begin the installation.
    3. If the patch install is selected, after the file has downloaded, double-click the .exe to begin the installation.
  4. Follow the instructions during the installation. It does take a minute or two for the install to launch so please be patient.

Thank you.

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