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RAMPS - DIY Assembly Kit


RAMPS - DIY Assembly Kit

$ 45.00

RAMPS - RepRap Arduino Mega Pololu Shield board. This is version 1.4 of our shield, designed to drive a 3D printer 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 DIY kit is great if you want to solder your board, and/or save money. There are several options to choose from. The default options are most popular. We recommend that beginner solderers select "UltiMachine Solders SMT" from the PCB Assembly Options.

RAMPS provisions:

  • 3 PWM controlled mosfet powered outputs
  • Heated bed control with 11A fuse
  • 3 thermistor circuits
  • 5 Pololu Stepper Driver sockets (x4 drivers included with complete kit)
  • 6 sets of Digital Pins in headers with VCC and GND for endstops (endstops included in complete kit)
  • 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 and Pololu Stepper Drivers easily removable for reuse at RAMPS end of life

PCB Assembly Options:
You Solder SMT - receive a blank PCB, unpopulated
UltiMachine solders SMT - receive PCB populated with all SMT components

Kit Options:
DIY - The do it yourself kit includes all electronic components, wiring & the PCB needed to assemble RAMPS yourself.  The PCB is available completely DIY, or with SMT components pre-soldered.
DIY Complete - The do it yourself complete kit includes all electronic components & the PCB needed to fully assemble RAMPS, your choice of three (x3) mechanical or optical endstop switches & wires, one (x1) thermistor wire, one (x1) Arduino Mega 2560, four (x4) Pololu Stepper Drivers w/ heatsinks, one (x1) USB cable. The PCB is available completely DIY, or with SMT components pre-soldered.
DIY Complete, No Mega - Includes all above complete kit items, without the Arduino Mega 2560.

The components you will receive in this DIY kit:

  • RepRap Arduino Mega Pololu Shield v1.4 (x1)
  • 18pos, 2row pin header (x1)
  • 3pos, 2row pin header (x8)
  • 24pos, 1row pin header (x1)
  • 8pos, 1row pin header (x5)
  • 6pos, 1row pin header (x2)
  • 4pos, 1row pin header (x6)
  • 24pos, 1row female pin header (x2)
  • 8pos, 1row female pin header (x4)
  • 6 pin terminal block (x1)
  • 4 pin fixed terminal block (x1)
  • 4 pin pluggable terminal block (x1)
  • Shorting (jumper) block 2.54mm (x15)
  • Tactile switch B3F-3100 (x1)
  • Fuse MF-R500 (x1)
  • Fuse MF-R1100 (x1)
  • 10uf 16V SMT capacitor (x3) *
  • 100nF 25V SMT capacitor (x1) *
  • 100uF 35V SMT capacitor (x6) *
  • 4.7kohm 125mW 1% SMT resistor (x5) *
  • 100kohm 125mW 1% SMT resistor (x8) *
  • 1kohm 125mW 1% SMT resistor (x1) *
  • 1.8kohm 125mW 1% SMT resistor (x3) *
  • 10kohm 125mW 1% SMT resistor (x5) *
  • 10ohm 125mW 1% SMT resistor (x3) *
  • Green SMT LED (x1) *
  • Red SMT LED (x3) *
  • Diode 1N4004 (x2)
  • STP55NF06L - MOSFET (x3)
  • Heatsink w/ nut,bolt (x1)

          *These components available pre-soldered to PCB

Endstop Options:
Mechanical Switch Wiring Kit (Default option)

  • Mechanical microswitches (x3) *Included in Complete Kits Only*
  • 1x2 0.10" 5A housings for endstop wires(x3)
  • 3.18mm terminal female connector for endstop wires (x6)
  • Pre-crimped/housed mechanical wire harness, 609.6mm (24") (x3)
  • Pre-crimped/housed white thermistor wiring, 914.4mm (36") *thermistor not included* (x1)
  • 1x4 0.10" 5A connectors/housings for crimping motor cables (x5)


Optical Switch Wiring Kit

  • Optical switch, DIY kit** or pre-assembled (x3) *Included in Complete Kits Only*
    **DIY kit includes Opto-switch PCB w/ SMT pre-soldered, TCST2103 Switch, 3pos Terminal Block 5.08mm, 3 pos latch connector
  • 1x3 0.10" 5A housings for endstop wires - RAMPS connection (x3)
  • 1x3 positive latch housings for endstop wires - Optical Endstop connection (x3)
  • Pre-crimped/housed optical wire harness, 609.6mm (24") (x3)
  • Pre-crimped/housed thermistor wire harness, 914.4mm (36") *thermistor not included* (x1)
  • 1x4 0.10" 5A connectors/housings for crimping motor cables (x5)


Additional Information:
Min 12V 5A DC power supply required (up to 16A total required if heatbed is used)

Assembly instructions and sources at 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.

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