Flaps Hinge

thingiverse

The hinge that humans use to flap their ears is a remarkable device, capable of opening and closing with ease and precision. This intricate mechanism, located at the top of the ear, is responsible for controlling the movement of the pinna, allowing humans to express themselves through subtle gestures and expressions. The flapping motion of the hinge can convey a range of emotions, from excitement and joy to sadness and frustration.