RAMPS - RepRap Arduino Mega Pololu Shield board. This is version 1.4 of our shield, designed to drive a RepRap from an Arduino Mega.  It uses Pololu Stepper Drivers delivering up to 1/16 microstepping.  Four drivers are needed to move most 3D printers, with 3 going to the axis & one driving the extruder.  An optional fifth stepper driver socket has been provided for additional applications.

This board now features both through-hole & surface-mount (SMT) electronic components.  Assembly instructions and sources at RepRap.org/wiki/RAMPS1.4.  You will need a soldering iron, solder/solder paste, solder wick, flux pen, tweezers, side cutters, and basic soldering skills.  A multimeter is useful too.   This board is Open Source Hardware licensed GPLv3, so please use, copy, improve, hack, upgrade, and / or contribute.

RAMPS provisions:

• PCB Dimensions: 102mm x 60mm
• 3 PWM controlled mosfet powered outputs
• Heated bed control with 11A fuse
• 3 thermistor circuits
• 5 Pololu Stepper Driver sockets (driver boards purchased seperately)
• 6 sets of Digital Pins in headers with VCC and GND for endstops (endstops not included)
• Uses pluggable screw terminal block for power connection
• Fused at 5A for additional safety and component protection
• Extra pins broke out :  PWM, digital, serial, SPI, I2C and analog
• Use of widely available, low cost, high quality RC servo connectors for interconnects
• Arduino MEGA (not included) and Pololu Stepper Drivers (not included) easily removable for reuse at RAMPS end of life

Here are some items needed to complete your 3D printer electronics, but not included with this PCB:

• Arduino Mega 2560
• Mechanical or Optical Endstops (x3 recommended)
• Pololu Stepper Drivers w/ heatsinks (x4)
• USB 2.0 Cable
• Min 12V 5A DC power supply required (up to 16A total required if heatbed is used)
• Motors

Recommended optional add ons:

• Prusa PCB Heated Bed
• 5th stepper driver
•  Kliment's SD RAMPS

Needed to complete your 3D Printer:

• Thermistors
• Extruder
• Printed Parts
• Hardware
• PLA

PLEASE VIEW OUR ADDITIONAL RAMPS OPTIONS:

• DIY Kit-  includes all electronic components & the PCB needed to fully assemble RAMPS & choice of endstop wires
• DIY Kit Complete-  includes all electronic components & the PCB needed to fully assemble RAMPS, your choice of endstop wires & switches, one (x1) Arduino Mega 2560, four (x4) Pololu Stepper Drivers w/ heatsinks, one (x1) USB cable
• Pre-Assembled-  all electronic components securely soldered to the PCB, ready for use & choice of endstop wires
• Pre-Assembled Complete-  all electronic components securely soldered to the PCB, tested & ready for use, one (x1) Arduino Mega 2560 connected to RAMPS, four (x4) Pololu Stepper Drivers w/ heatsinks connected to RAMPS, your choice of endstop wires & switches, one (x1) USB cable