This is a fork of RCKeith's GitHub repository that's been tweaked for where I put my axes and homing switches.
The significant changes are to Marlin/Configuration.h and Marlin/Configuration_adv.h.
To be able to use a 4 axes CNC Foam Cutter without the need of a attached computer. The Status screen has been modifed by DerAndere1 to show the axes XYUV with a few minor tweaks by myself. Many thanks. This is still in the testing phase with CNC Foam Cutter using an Arduino Mega 2560 and a RAMPS 1.4. Please use with caution until this has been completed. More details here https://rckeith.co.uk/4-axis-cnc-foam-cutter-using-marlin-3d-printer-firmware/
If you use the MKS GEN L V2.1 board change line 99 in Configuration.h
#define MOTHERBOARD BOARD_MKS_GEN_L_V21
Pin D42 can't be used on this board so pin D19 is used for the U-axis endstop D19 is the Z-MAX pin which isn't used. Thanks to Anthony Gilbert for testing this.
repository DerAndere1/Marlin at https://github.com, the Wiki
Please check my website for the build and electronics used in my 4 Axes CNC Foam cutter https://rckeith.co.uk