The 3D printed “spray can controller” even rattles when shaken! There’s one more trick. Since the Vive Tracker is wireless and completely self-contained, the completed rattlecan operates ...

The 3D printed “spray can controller” even rattles when shaken! There’s one more trick. Since the Vive Tracker is wireless and completely self-contained, the completed rattlecan operates ...

Two webcams track the spray can's position, while algorithms signal a motor on the nozzle to dispense paint. (Image credit: Romain Prévost, Alec Jacobson, Wojciech Jarosz, Olga Sorkine-Hornung) ...

Let’s paint in 3D! But wait, there’s more—there’s a third way to create 3D objects.. Mark Hachman. Doodle a 2D shape, and you can “puff” it out to a 3D object. Paint 3D allows you to ...

Scientists have invented a way to adapt any standard spray can to paint a giant image robotically, allowing even non-artists to create graffiti art. WSJ's Monika Auger reports. Photo: Romain ...