The RGB STEEL Low Cost 3D Printer

By on June 14th, 2016 in printer

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 Some of the RGB Steel's steel parts
Some of the RGB Steel’s steel parts

RepRapAlgarve has released a design and kit for a powerful multicolor 3D printer, the RGB STEEL. 

The machine is based on the popular P3Steel design, which featured steel components. Stiff frames, such as those made from steel, greatly contribute to higher-quality 3D prints because they dramatically reduce vibrations, vibrations that tickle your nozzle just as it’s laying down a supposedly smooth section of your print. 

The machine has some very good, but basic characteristics, such as: 

  • 3mm carbon steel frame
  • 4mm glass heated print surface
  • Arduino Mega 2560 powered
  • Extruder cooling fan
  • LCD control panel
  • SD card reader input

But the big thing for me is that this machine can accommodate a Diamond hot end that can actually mix colors on the fly. Using multiple filaments fed into this hot end, you can create a wide variety of colors, although switching colors during a print can take much extra time. 

 The RGB Steel 3D printer mixing colors on the fly!
The RGB Steel 3D printer mixing colors on the fly!

The cost of this machine depends on how you want to proceed. It’s possible to get the open source design and simply build it yourself by sourcing all the parts. Or you could just buy the complete kit from RepRapAlgarve for only €339 (USD$383). They’ll also send you one entirely assembled for the similarly low price of only €375 (USD$424).

 Some of the RGB Steel's electronics components
Some of the RGB Steel’s electronics components

However, note that you might want to add the optional kit for €199 (USD$225) that includes:

  • Diamond hotend (color mixer), 
  • +2 engines + electronics, 
  • +2 extruders E3D lite, 
  • 2 Mk8 + bowden tubes

That brings the kit price to €538 (USD$608), still a very good deal for a color mixing machine. 

Then you’ll have to figure out how to do the color 3D modeling, but that’s another story. 

Via RepRapAlgarve and Instructables


By Kerry Stevenson

Kerry Stevenson, aka "General Fabb" has written over 8,000 stories on 3D printing at Fabbaloo since he launched the venture in 2007, with an intention to promote and grow the incredible technology of 3D printing across the world. So far, it seems to be working!