Download HSM Performance Pack

The latest version of HSM Performance Pack supports Mastercam versions 2019, 2020 and 2021. A valid license is required to run HSM Performance Pack and a time limited trial license can be aquired by filling out the Request Free Trial form. If you are experiencing problems with the installation, please read the FAQ or contact your local reseller.

Release NotesVersion Archive
  • Added support for Mastercam 2021
  • #570 Use 5-axis stock simulation for rest material calculations
  • #581 Add both ways milling direction for Horizontal
  • #610 Fix deletion of wrong chain
  • #583 Move undercut checkbox for Scallop
  • #520 Add error messages for missing STL files
  • Update HTKernel
    • Fix #507. Performance improvements for undercut Scallop.
    • Fix #524. Added plunge option to ConstantCut.
    • Fix #129. Improved multi-threading for 3D Constant Cut with step-ups.
    • Fix #266. Added centerpasses support to Blend Pencil.
    • Fix #579. Slope boundaries in undercut Scallop.
    • Fix #580. Disabled smoothing in Scallop when smoothing value is set to zero.
    • Fix #584. Hybrid missing center passes.
    • Fix #585. Hybrid wobbly center passes.
    • Fix #597. Hybrid gouging center passes.
    • Fix #616. ConstantCut rest on theoretical tool doesn't work if there is undercut.
    • Fix #519. Improved plunging outside stock in Horizontal.
    • Fix #511. Keeping climb/conventional for ramps in Horizontal when ordering is changed (outside->in).
    • Fix #527. Fixed bug in joining and splitting arcs if HT_PARAMETER_MAX_ARCS_ANGLE is used.
    • Fix #528. Not working fixed z-levels.
    • Fix #373. Minimum stepover is always reduced to guaranty no upstands in pocket.
    • Fix #535. Fixed some issue in "avoid stock" for ConstantCut.
    • Fix #272. Added support for HT_PARAMETER_DRILL_GROUP_BY_DEPTHS which allows to group drills with the same depths.
    • Fix #590. Major performance improvement for Drill strategy when a lot of holes are detected.
    • Fix #598. Improved trimming by slope angles and contact boundaries if minimum cutting radius is enabled.
    • Fix #592. Fixed possible gouge (maximum 2.0 tolerance instead of tolerance) after filtering.
    • Fix #594. Fixed not working slope angles in undercut areas in Contour3D.
    • Fix #574.
    • Fix #546.
    • Partial fix #244. Fixed very long leads in some cases for Parallel with enabled undercut.
    • Fixed bug which could prevent full depth toolpath generation if "avoid stock" was enabled.
    • Fixed possible holder gouges after tilt.
    • Changed default boundaries for Horizontal to allow plunge outside stock for outermost passes.
    • Minor improvement in transitions for open Horizontal.
    • Improved points distribution in filtering.

Please keep a local copy of the installation in case you need to reinstall HSM Performance Pack at a later time. To install HSM Performance Pack you need to have administrator rights on your Windows installation. Please see our Install Guide here.

After installation is complete, we recommend that you add the commonly used HSM Performance Pack functions to your Mastercam toolbar. See our FAQ on how to do this.

The last installed or repaired version of HSM Performance Pack will be active for the Mastercam versions that are supported.


CIMCO License Manager CIMCO License Manager x64
CIMCO License Manager is a generic license manager that provides support for floating licenses on a local area network.

The license manager requires a floating license and only permanent licenses for Mastercam NetHASPs are issued as floating licenses. CIMCO License Manager is not needed for temporary/trial licenses even when bound to NetHASPs.