3D-printed revolving devices can sense how they are moving

MIT engineers have developed a way to easily integrate sensors into rotational mechanisms with 3D printing.

Sensors are typically embedded manually, after the device has already been produced.

MIT researchers developed a system that enables a maker to 3D print sensors directly into a mechanism's moving parts using conductive 3D printer filament.

This gives devices the ability to sense their angular position, rotation speed, and direction of rotation.

Researchers used their system to prototype several devices, including a desk lamp that changes color and brightness depending on how the user rotates the bottom or middle of the lamp.

They also produced a planetary gearbox, like those that are used in robotic arms, and a wheel that measures distance as it rolls across a surface.