A creator has developed a bracelet that integrates a tiny axial fan made of resin. The device needs no batteries or cables: it harnesses the natural movement of the arm to spin its blades and generate a constant airflow. It is an accessory that promises to relieve heat during activity, without resorting to electronic components.
3D printing and simple mechanics to generate a breeze 🌬️
The centerpiece is a resin axial fan, designed with blades optimized to spin with minimal friction. It is mounted on a low-friction bearing, housed in a frame that is also printed. When walking or moving the forearm, the relative airflow rotates the fan. Efficiency depends on the speed of movement; a light walk produces a gentle breeze, while running generates a more noticeable airflow. There are no metal parts or motor, only pure mechanics.
The fan you don't need but will want to wear 😅
This invention solves a problem nobody had: sweating while gesticulating when talking. Now you can look like a human traffic light while a mini propeller cools your wrist. Of course, be careful when shaking hands: you might accidentally fan your interlocutor. At least, if the plastic rubs and irritates your skin, you'll have a perfect excuse to stop greeting people.