3D Printer Controller Kit for Arduino Mega 2560 Uno R3 Starter Kits + RAMPS 1.4 with Upgraded Mosfet + 5pcs A4988 Stepper Motor Driver + LCD 12864 for Arduino Reprap (14 Items) 3D Printer Controller Kit Mega 2560 R3 3D Printer Controller RAMPS 1.4 interfaces an Arduino Mega2560 board. The modular design includes a plug in stepper drivers and extruder control electronics on an Arduino-compatible MEGA shield for easy service, part replacement, upgradeability and expansion LCD 12864 Graphic Smart Display Controller and the A4988 Stepper Motor Driver 3D Printer Controller 100% compatible with Arduino RepRap Detailed tutorials including project introduction and source code are provided for free, just contact us by Email