Ramps 1.6 Reprap - Arduino Mega Pololu Shield RepRap Arduino Mega Pololu Shield (RAMPS) version 1.6 for 3D printer. Updated 4-layer PCB control panel motherboard with 5-piece DRV8825 driver for 3D printer. Includes heatsink and jumpers. RAMPS board is a shield for the Arduino Mega2560. The outputs of the Arduino board are redirected to the motor drivers. To have the complete electronics for a 3D printer you need a RAMPS, an Arduino Mega and at least four stepper motor drivers A4988, DRV8825. Code I0194 ✗ Out-of-Stock Price €9.90