Despite a few holdouts like Lulzbot, the entire 3D printing industry seems to have settled on 1.75mm filament. New Printrbots are exclusively 1.75mm, and Makerbots use 1.75mm filament. The Dremel ...
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 ...