Project Summary

For my Fab Academy final project, I created a fully-functioning tennis ball machine. It basically shoots out tennis balls from two rotating wheels that create enough of friction to launch the ball down a tube, which is held in place by aluminum bars. The entire machine is actually consisted of aluminum bars held together by L-bracket attachments and tabs and screws. There is a wooden base to minimize the shaking of the motors when they exceed 2000 RPM. The motors are controlled by a single potentiometer, and there is an OLED display that shows you the RPM of the wheels, which is measured by a Hall-effect sensor every time the magnet passes within the sensor’s magnetic detection range.

Bill of Materials

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Last update: July 14, 2024