Here's how to jump on the AI action figure "Barbie box" bandwagon -- and how to 3D print it so you can have it for real.

Printing with bi-color filament results in an object whose color depends on viewing angle, and part geometry. There is such a thing as bi-color filament (like MatterHackers Quantum PLA ...

It lets you make 3D prints that slowly fade from one color to another along the Z-axis. [David Gozzard] wanted to do some printing with this effect, and learned how to make his own filament to do ...