Kuman 3D Printer Controller Kit for Arduino Mega 2560 Uno R3 Starter Kits +RAMPS 1.4 + 5pcs A4988 Stepper Motor Driver + LCD 12864 for Arduino Reprap K17 Update High Quality Ramp Board by changing MOSFET: old MOSFET IC Model : PDF55N06 SpecificationVDSS:60V ID:55A New MOSFET IC model: HM60N06 SpecificationVDSS:60V ID:60A HM60N06 current up to 60AMore safety 3D Printer Controller RAMPS 1.4,A4988 Stepper Motor Driver LCD 12864 Graphic Smart Display Controller 3D Printer Controller 100% compatible with Arduino RepRap Detailed tutorials including project introduction and source code CAN BE PROVIDED FOR FREE,contact us BY Email to get documents