FABtotum Marlin Derivate Firmware.
This is the FABlin, a Marlin Derivate Firmware. Marlin was originally created by Erik Zalm (https://github.com/ErikZalm/Marlin) The changes made are focused on multipurpose personal fabrication and hardware characteristics of the FABtotum Personal Fabricator such as 3D/4 Axis milling, 3D/4 axis scanning, Touch-probing and the Totumduino Board I/Os capabilities.
Supported G-codes: http://forum.fabtotum.cc/showthread.php?1364-Supported-Gcodes