Original Prusa i3 MK2 Firmware
General instructions
This is the Prusa Firmware for Prusa i3 Mk2, modified to work with generic RAMPS hardware (or, better yet, a board with more mosfet outputs like MKS BASE or MKS GEN).
Configuration_prusa.h is already there, you don't need, or want, to copy a config from the variants directory.
Ideally, your board has a MOSFET on D7, and you should connect the extruder cooling fan to that (NOT the part fan). The firmware is setup for Dual Z steppers using the E1 driver. It won't matter if you use the Z driver for both either in series or parallel either.
Good luck!!!
Build instructions
Step 1
Install arduino
Step 2
Remove Liquid Crystal library from your arduino or rename it (not certain this is really necessary anymore)
Step 3
Install the arduino addon located in the root of this repo. Don't forget to install correct version! (not certain this is really necessary anymore
Step 4
Upload the firmware to board