Filament Painting: Extrude Full Color Images on a 3D Printer

3D Printing & Imaging Art & Sculpture Craft & Design Digital Fabrication
Filament Painting: Extrude Full Color Images on a 3D Printer
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3D printing is always surprising us with new and inventive ways of using the somewhat simple machines. In this case, itโ€™s new software called HueForge that creates beautifully rendered 2D artwork using the very limited colors and materials allowed by 3D printing. You donโ€™t even need to have a multicolor setup to do it!ย 

To understand what HueForge is and why itโ€™s so neat, we first have to break down the limitations of 3D printers when it comes to making 2D art:

  • Filaments come in a limited range of colors, and youโ€™re typically limited to only four of them even when using a fancy auto color changer
  • The nozzle is relatively large, usually 0.4 to 0.6mm which is huge compared to a pixel on your screen or on a page.
Example 3D-printed artwork showing how the layers are built up, starting from right to left. Photo courtesy of HueForge

HueForge overcomes these two big difficulties by utilizing the semi-transparent nature of very thin plastic to achieve color blending effects. Using only a few colors, this software will put down layers โ€” darkest beneath, brightest/most translucent on top โ€” building up various areas to get gradients and transitions that look stunning. If your printer isnโ€™t equipped to do multicolor, you can still use HueForge to make incredible multicolor art โ€” the machine will pause between each color, allowing you to manually swap filaments.

Frankly, itโ€™s rare to see a piece of software that really expands on the capabilities of a 3D printer and I think HueForge has pulled that off.

This article appeared in Make: Volume 88.

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I get ridiculously excited seeing people make things. I just want to revel in the creativity I see in makers. My favorite thing in the world is sharing a maker's story. Find me at CalebKraft.com.

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