Is there any existing technology that takes a variety of filaments of different colors (say a CMYK blend), and then blends them in different ratios to achieve whatever color you want?

I had this thought the either day, and I figure it's either stupid, already exists, or genius.

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[–] 1 point 1 month ago

There were projects from 10 years ago like mixtruder and https://www.kickstarter.com/projects/m3d/the-quadfusion-print-head-making-color-3d-printing

From 7 years ago that never went anywhere.

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