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RAMPS - Pre-Assembled Kit


RAMPS - Pre-Assembled Kit

$ 80.00

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 (not included) 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.

RAMPS provisions:

  • 3 PWM controlled mosfet powered outputs
  • Heated bed control with 11A fuse
  • 3 thermistor circuits
  • 5 Pololu Stepper Driver sockets (drivers not included, see 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 (not included) and Pololu Stepper Drivers (not included) easily removable for reuse at RAMPS end of life


    There are several kit options to choose from. The default options are most popular and will let you control your 3D printer with the minimal electronics knowledge. Our professionals can solder and test the kit for you.

    Kit Options:
    Pre-Assembled Kit - The Pre-Assembled kit comes with all electronic components securely soldered to the PCB, ready for use, thermistor wire & your choice of endstop wires. Endstop switches not included. We also include loose a 4-pin pluggable terminal block, a 24 pin header & a loose 2nd Diode.  We do not solder this diode in case you use a power supply larger than 12V.

    Assembly Options:

    Pre-assembled kits require you to select your preferred Z motor connections. Dual Z motor connectors is most common. It allows connecting two stepper motors in parallel on one driver.

    Endstop Options:
    Mechanical Wiring Kit (Default option)

      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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