That earlier version was especially impressive because it used microphones to listen to the pings and pongs of the ball bouncing off the ... a planetary gearbox. Motion control is via a Teensy ...

If you haven’t seen it before, this device uses computer vision from a camera mounted underneath its thick, clear acrylic platform to track a ball in 3D space, and make the necessary (and minute ...

Purpose of Rule: Rule 11 covers what to do if your ball in motion hits a person, animal, equipment or anything else on the course. When this happens accidentally, there is no penalty and you normally ...