Color gradient filament is fun stuff to play with. 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, ...

Colloidal photonic glasses offer an appealing way to produce vivid colors without any chemical dyes—but so far, a stubborn optical effect has long prevented them from generating a true red color. Now, ...

We know that whatever printer we purchase from the market, it prints in black & white or color. Color ink cartridge normally has cyan, yellow, and magenta inks. It uses these inks to mix the user’s ...