Professionally manufactured PCB version 1.3 of RAMPS with full silkscreen and through-plated holes. This is just the PCB, no components mounted!

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RepRap Arduino 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. It is a single layer designed board that is printable on your RepRap with the etch resist pen method, or home fabbed with toner transfer. At the same time it is based on the powerful Arduino 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 as long as the main RAMPS board is kept to the top of the stack a number of Arduino expansion boards can be added to the system.



  • It has provisions for the cartesian robot and extruder.
  • Expandable to control other accessories.
  • 3 mosfets for heater / fan outputs and 2 thermistor circuits.
  • Fits 5 Pololu A4983 stepper drivers: 3 for X,Y and Z, 2 for extruders
  • Pololu boards are on pin header sockets so they can be replaced easily or removed for use in future designs.
  • The pin headers for the stepper motor outputs are placed on top of the Pololu boards saving routing them on the main shield.
  • I2C and SPI pins left available for future expansion.
  • NEW: Connections for servo's, support for bed and dual tip thermistor
  • All the Mosfets are hooked into PWM pins for versatility.
  • Servo style connectors are used to connect to the endstops, motors, and leds. These connectors are gold plated, rated for 3A, very compact, and globally available.


For more information, see also http://reprap.org/wiki/RAMPS


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