which is melted and molded into the pen’s body. The body is then carefully shaped, and a variety of color options are offered for the casing. Once the body is formed, the ink is prepared ...

There are some workarounds to this problem, but not many of them are as smooth an effortless as this one which uses erasable pen ink to add colors to the filament on the fly. Erasable pen ink is a ...

The Scribble Pen is a device that scans a color from a real object, turns it into an ink, and lets the user draw with it. An RGB color sensor scans the color and sends the information to a micro ...