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.
No idea if if ever took off, but e3d had a hotend that could mix 2 filaments. I’ve never seen one in person, but messed around with the chimera a bit when it was first launched.
https://www.filastruder.com/products/chimera-cyclops?variant=1035850192