ramps-1-4-wiring

3D Printer control boards

Preamble

There is a wide variety of control boards out there. Which one is best?

Featured image from How to wire a 3d printer arduino RAMPS 1.4 A4988 stepper motor driver.

The choices

From 3D Printering: Electronics boards:

  • RAMPS 1.4 (see also RAMPS)- optional SD card adapter and LCD control panel. Five motor drivers for X, Y, Z, and two extruders.
  • RAMPS 1.4.2 (see below)
  • RAMBo – built in drivers (if one fails the board is useless), optional SD card adapter and LCD control panel. Five motor drivers for X, Y, Z, and two extruders.
  • RUMBA – replaceable Pololu stepper motor drivers, optional SD card adapter and LCD control panel. Six motor drivers for X, Y, Z, and three extruders.
  • Sanguinololu – underpowered ATMega1284P, FTDI, replaceable Pololu stepper motor drivers, optional SD card adapter and LCD control panel. Four motor drivers for X, Y, Z, and one extruder.
  • Teensylu – No FTDI, AT90USB1286, similar to Sanguinololu. Four motor drivers for X, Y, Z, and one extruder.
  • Printrboard – AT90USB1286, integrated SD card reader, built in drivers (if one fails the board is useless). Four motor drivers for X, Y, Z, and one extruder.
  • [Traumflug]’s Gen 7 electronics board – similar to Sanguinololu. Four motor drivers for X, Y, Z, and one extruder.
  • Smoothie – Ethernet and ARM Cortex M3.

RAMPS 1.4.2

Don’t purchase the RAMPS 1.4 board, which go for around £4 on eBay. There is a later, improved version 1.4.2, although it does cost significantly more.

RAMPS 1.4.2

Available from German RepRap, for €59.95. See, RAMPS v1.4.2 open source control board and the RepRap RAMPS 1.4 page.

The RAMPS 1.4.2 has the following enhancements over 1.4

  • Standard automotive blade fuses instead of thermal fuses increasing the heat resilience.
  • Current carrying improved by increasing the thickness of the cooper at the PCB from 35 to 70 micro meters.
  • Suppression caps added to each end-stop to avoid spurious signals.
  • Added an additional connector to XY, E1 and E2 to connect a second stepper motor.
  • Connector for external reset added.
  • Labelled D8, D9,D10 with Heatbed, Extruder 1 Fan and Extruder 2.

Connections provided:

  • 2 * extruder heating
  • 1 bed * Heating
  • 3 * Temperature sensor for Extruder 2 and 1 bed ( No more board longer necessary )
  • 5 * for Pololu motor base
  • 6 * opto end stop (3 * Min, Max 3 * )
  • 1 * Connection option for SD card reader and LCD
  • 1 * Connection for external reset
  • 1 * Connection for FAN adapter.
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