3D Printer RAMPS 1.4 Kit Mega 2560 R3 +4PCS A4988 Stepper Drivers

RepRap Mega Pololu Shield, or RAMPS for short.It is designed to fit the entire electronics needed for a RepRap in one small package for low cost.RAMPS interfaces an Ard Mega with the powerful Ard MEGA platform and has plenty room for expansion.The modular design includes plug in stepper drivers and extruder control electronics on an Arduino MEGA shield for easy service, part replacement, upgrade-ability and expansion. additionally, a number of Ard expansion boards can be added to the system as long as the main RAMPS board is kept to the top of the stack Version 1.4 uses surface mount capacitors and resistors to further cover edge issue

Mega 2560:

Operationg Voltage 5V

Input Voltage (recommended) 7-12V

Input Voltage(limits) 6-20V

Digital I/O Pins 54(of which 14 provide PWM output)

Analong INput Pins 16

DC Current per I/O Pin 40mA

DC Currentfor 3.3 V Pin 50mA

Flash Memory 256 KB of which 4 KB used by bootloader

SRAM 8 KB

Packing List:-

1PC Ramps 1.4

1PC Mega 2560

4PCS A4988 Drivers+ Heatsinks

1PC USB Cable