Recycling 3D filament is a great idea in theory, and we come across homemade filament extruders with some regularity, but they do have some major downsides when it comes to colored filaments. If ...

When you mix blue and yellow light, you get gray – exactly what happens ... order to exactly match the original RGB color.” It lets the K-M model do its mixing magic without compromising ...

or navy blue.' If you do want to include shades of orange or red within your gray color scheme, there are ways to do so, but ...