***PLEASE NOTE***  Optical Endstop Kits are currently on backorder.  If you place an order for this kit with Optical Endstops, your entire order will wait to ship until they arrive back in stock, approx. 1 week lead time.

This is the do it yourself complete kit and includes all electronic components & the PCB needed to fully assemble RAMPS,  your choice of mechanical or optical endstop switches & wires, 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.

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:

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

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***

PLEASE CHOOSE YOUR ENDSTOP SWITCHES / WIRES:

Mechanical Switch Wiring (Default option)
***Mechanical switches included***

• 1x3 0.10" 5A housings for endstop wires(x3)
• 3.18mm terminal female connector for endstop wires (x6)
• Pre-crimped black 24" endstop wires (x3)
• Pre-crimped white 24" endstop wires (x3)
• 36" 9 conductor, 26awg cable, pre-crimped w/ 1x2 0.10" 5A connectors/housing for thermistor (x1) *thermistor not included*
• 1x4 0.10" 5A connectors/housings for crimping motor cables (x5)

Here are some items needed to complete your 3D printer electronics, but not included in this DIY kit:

• 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 (for possible 2nd extruder)
•  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
• 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 switches & wires, one (x1) USB cable