Itch

Scratch underneath this four-legged friend and feel how the motion is mapped and scaled up to your own back. This futuristic contraption comes equipped with a broad selection of ”fingernails” that can be attached to the itch-calming mechanism to satisfy virtually every kind of scratching known to man. Or woman. (designed with Alejandro Zamudio Sánchez)

Video

Technical Details

The user, moving a fingertip across a touchpad located under the seat base, controls the position of the scratching actuator and its intensity. According to the scratching on the hidden pad, the chosen mechanical fingernail (connected to a servo motor) moves around the back of the chair and provide the necessary scratch.