Pantheon Slicer

On July 12 we have released Pantheon Slicer BETA, and on October 23 Pantheon Slicer 2.6.1

Reasons we forked our own slicer:

  • Automatic updates for our printers profiles

    • no more deleting and re-importing profiles

    • whenever print profiles are updated you will get an in-app notification

  • New Functionality in development


Slicing a part is how we get our 3D model into a code our printer can run. Slicing is equivalent to CAM or programming in the CNC world. The slicer takes parts and “slices” them into layers that the printer prints. The slicer generates the exact path the nozzle follows. Things like wall thickness, top and bottom thickness, speed, etc. are all configured in the slicer.

Pantheon Slicer is compatible with Windows 10, 11 and Mac OS on Apple M1 and newer devices.

Please read this entire document before slicing and printing with the Pantheon HS3.



Install PantheonSlicer (2.6.1)


Download Link


Download Link

Windows 10, 11


Mac OS

(Apple Silicon only)



Download and run the installer above.

Once installation finishes you can launch the application. The config wizard can be skipped with the “Finish” button as there are no options to configure.

Mac OS

Download the .zip above, unpack it and copy the file into your Applications folder.

You can now launch the application. The config wizard can be skipped with the “Finish” button as there are no options to configure.

Restart Application

After you install Pantheon Slicer for the first time, close and restart the application to receive the new slicer update.

Config Update notification will pop up at the bottom of the window after restarting.

Configure Filaments

Go to Configuration → Configuration Wizard. Once in the wizard, go to the “Filaments” section and select all, then Finish. This will associate the profiles and filaments in the main GUI.

Importing a Part

Pantheon Slicer is compatible with the following file formats: .STL, .OBJ, .3MF, .AMF, .ZIP.AMF, .XML, .STEP, .STP

You can either drag and drop files directly into the Pantheon Slicer window or use the add button highlighted below.

Orienting a part

You will need to rotate the part onto a face to print it, your part may import in the correct orientation already but this step is often necessary

The Easiest way to do this is to use the place-on-face tool. Click your model, then click the place on face button. Faces will appear on your part, select the one you want contacting the bed and the object will rotate into place


Slicer Settings

Updating Slicer Settings:

Pantheon Slicer checks for settings updates automatically at startup. If updates are available a message will be shown on screen in the bottom-right corner of the plating area.

See here for more info and troubleshooting steps:

Overview of Print settings, Filament, and printer:

Select the profile according to the material you are printing with.

0.2mm Carbon Fiber PETG Rev3.5

Default setting for PETG parts.

0.2mm Carbon Fiber Nylon Rev3.5

Default setting for CF-Nylon parts.

0.2mm Glass Fiber Nylon Rev3.5

Default setting for GF-Nylon parts.



Carbon Fiber PETG Rev3.5

general purpose material:

  • 45-50 MPa tensile, depending on process settings

  • operating temp up to 70°C

  • great layer bonding - 85% isotropic

  • good UV/chemical resistances

Carbon Fiber Nylon Rev3.5

High temp, High Stiffness, High strength

  • 95-120 MPa tensile, depending on the process settings

  • Operating temps up to 140°C

  • super stiff - 8150 MPa modulus

  • resistant to creep at high temps

Glass Fiber Nylon Rev3.5

High temp, high impact, high lubricity

  • 90-110 MPa tensile, depending on the process settings

  • Operating temp up to 95°C

  • low friction, high lubricity,


Pantheon HS3 Rev 3.5

  • that's our only system, so hopefully, that's why you are here

Slicing and Exporting

Once you have imported a model, orientated it, and selected your process settings you can slice and export the file (.gcode)

Click the Slice Now Button, then the Export G-code Button, and save the file

You are now ready to upload and print on the HS3

Source Code

Source code for PantheonSlicer can be viewed and dowloaded here:

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