Once the stuff of science fiction, 3D printers are now mainstream tools for creation and innovation. These devices, which transform digital blueprints into physical objects, have dramatically evolved ...

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, ...

I modified a printer a few years ago to handle multiple filaments, but I will admit it was more or less a stunt. It worked, but it felt like you had to draw mystic symbols on the floor of the lab and ...