The Hexa-bouncer is a robot with six stepper motors, two cameras and a Teensy 4.0 controller, according to Hackaday.
Inverse kinematics are computed in Unity, and the machine bounces a ball.
Source: hackaday.com, reported 10-12. https://hackaday.com/2026/10/12/the-hexa-bouncer-may-be-the-most-overengineered-thing-you-see-this-week/