Building a Lego-powered Submarine 3.0 – balloon and compressor

Watch as the Brick Experiment Channel builds a 3rd iteration of their Lego submarine. They make it look so simple and there is a soothing ASMR quality to the process.

Depth control is done with an air-filled balloon and a Lego-compressor. Steering is done by turning the propeller direction with the help of linear magnetic coupling. Otherwise it’s more of the same as before. Swimming pool and lake tests at the end. Enjoy!

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