Reciprocating Rack and Pinion

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Full tutorial: https://learn.adafruit.com/rack-and-pinion-bot/ Create an Automated Geared Mechanism with Hypnotic Motion Use the Adafruit CRICKIT and Circuit Playground Express to Make it Dance! This mechanism converts rotary motion into linear oscillating motion. The gear appears to bounce back and forth as it continuously rotates. As the wheel spins, the gear turns and oscillates between two tracks. The teeth engage the lower track as it rotates. When it has traveled the length of the slot, the teeth clear the end of the track and catch the teeth in the upper part of the track. The gear emits clacks and sloshes sound while in motion, creating a sense of white noise. Adafruit CRICKIT for Circuit Playground Express: https://www.adafruit.com/product/3093 Adafruit Circuit Playground Express: https://www.adafruit.com/product/3333 TT DC Gearbox Motor: https://www.adafruit.com/product/3777 3xAA Battery Holder: https://www.adafruit.com/product/3842