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This entry is about the quest to get a machine to juggle a ping pong ball. I started thinking about a ping pong ball juggler 2 years ago. And it was around that time that I built the first one of them. it uses LED - Photo transistor pairs to "see" when and approximately where the ball comes down. I used 4 micro servos to move a wooden plate. It's the machine in the first YouTube video. The next major update came when I decided it might be interesting to try to track the balls position ...
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/ping-pong-ball-juggling-robot