Ori Friesen

One of my other engineering projects was a tennis ball launcher that uses a differential gearbox to both spin the fly-wheel and also rotate the head of the launcher. On the bottom, there are two motors, and if they are spinning in the same direction, the fly-wheel activates. If the motors run in opposite directions, then the head of the launcher rotates at the cost of some fly-wheel speed. All the parts on this mechanism were 3d-printed.