Jan.4, 2013

Elvira Yang from Hong Kong developed a flexible all-in-one open-source electronics board RUMBA (R.eprap U.niversal M.ega B.oard with A.llegro driver) for RepRap communities.

R.U.M.B.A Featuers:

* fully integrated all in one solution
- Arduino 2560-R3 compatible (works with Sprinter, Repetier, Marlin out of the box)
(easy to change/flash firmware for end user)
- ATmega16U2 (with enhanced firmware) for high speed USB serial connection (up to 2MBit)

- can be used with 12V-35V for motors / heated bed
- integrated high precision power regulators for:
- 12V (FAN/Light/...)
- 5V (ATmega2560/Logic)
- power input selector for ATmega/logic (stand alone or power from USB)

* easy DISPLAY + SD-CARD connector
- RepRapDiscount SmartController compatible pin header on board

* up to 6 motor driver with easy micro stepping setup (micro switches)

* 5x temperature ADC connectors
- e.g. 3x extruder thermistor + 1x heated bed thermistor + 1x chamber thermistor

* 5x PWM capable power mosfet outputs (3 with voltage selector for MainPower/12V)
- e.g. 3x (MainPower) extruder heater cartridge/power resistor + 1x (12V) fan + 1x (12V) light

* 1x PWM capable power mosfet with extended cooling area for heated bed

* 6x end stop connectors with power supply
- Xmin/Xmax/Ymin/Ymax/Zmin/Zmax

* screw terminals and pin header for easy motor connection
- can be used with existing 4 pin Molex plug on motor cable

* USB connector and pin header

* Power and ALL unused pins available on EXP-3 feature connector

* full JTAG support
- JTAG can be used during full operation (no shared pins)
(easy to develop/debug new or optimized firmware using Atmel Studio)

RUMBA is now on Indiegogo crowdfunding for manufacturing the first batch. For example, for $149 you will get:

  • 1x fully assembled RUMBA Board
  • 1x Reprapdiscount LCD controller
  • 1x 4GB SanDisk SD card
  • 1x Heated Bed 210x210mm
  • 1x Ceramic screwdriver
  • 1x basic wiring kit
  • 20 wires
  • pre- crimped 6x A4988 stepper driver (pololu compatible)
  • 6x Heat sink for the stepper drivers
  • 6x Conductive sticker (copper)
  • 5x EPCOS B57560G104F thermistor
  • 3x Cooler fan

The shipping will be next day after this campaign ends (27 Jan), free of charge. Check out the campaign on Indiegogo.





Posted in 3D Printer Accessories


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Michael wrote at 8/11/2015 6:09:35 PM:

you can putchased from

filipe_franco@hotmail.fr wrote at 4/30/2013 9:48:05 PM:

I have some trouble with the bed temp sensor. It's not working with repetier firmware

stewart wrote at 3/28/2013 4:59:55 PM:

Like to get the gerbers or *.pcb for all the layers. and make it a 4 or 6 layer board for all the High power.... Traces....make it have more Gnd planes..

Grogyan wrote at 3/27/2013 6:33:41 AM:

What, no thermocouple support?

Terry@tmccafferty.com wrote at 3/5/2013 3:46:36 AM:

Can this board be purchased?

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