Version 1.6 Plus Upgrade Control Board Shield (Hat) 

Recommended for use with Arduino Due (32Bit) 

RAMPS is the original REPRAP board for 3d printers and CNC machines, that can act as a controller when paired with an Arduino Mega circuit board. It features slots for stepper drivers, thermistors ports, end stop ports, and the ability to interface with LCD 2004 and full graphic LCD displays.