gMax 2 PRO Mainboard (SKR v2) Firmware 210812

License Type
Original Authors License
Compatible With
gMax 2 PRO
Marlin 2 Firmware for gMax 2 PRO

Update 8/12/2021 :
Initial upload of firmware.

Used on the gMax 2 PRO 3d printer. This firmware ships pre-installed on your gMax 3d printer.

This firmware is NOT compatible with the gMax 2 or the gMax 1.5+ printers. It is only compatible with the gMax 2 PRO.


Installation instructions can be found in the gMax 2 PRO User guide available in the download section of the forum.

Thank You

The original Marlin github can be found here:

A list of useful gcode commands can be found here:

Do not use the configuration files for the gMax found on the github page. Always download the gMax firmware found on our forum to ensure it works on your printer. Modifying the firmware is for advanced users and it not recommended. Making changes to the firmware could cause damage to your printer not covered under warranty.

A huge thank you to the entire Marlin Development team. Our source code is available in the .zip file.

Advanced Features

We have enabled a few advanced features from the marlin firmware and will be making short tutorials on them. They include:
  • Cancel Object (Classic Marlin Mode only. Use PrusaSlicer Label objects)
  • G2/G3 Arc using ArcWelder (Uses Cura ArcWelder plugin)
  • M808 gcode to perform loop functions via gcode
  • M150 gcode function to control RGB led pixels (ie. M150 R100 I0)
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