The Automatic Bubble Wagon 🚙•••This is a second prototype to prove my pac-man style automatic bubble concept. Eventually, this will be scaled way up to fit on the back of the car, but first I need to make sure the concept works. So I connected a bucket of bubble solution to the semi-circular rings via a 12 volt pump, and used a servo to automatically open and close the rings. Once the cotton covered rings are fully saturated with bubble solution, closing them and opening them creates a bubble f

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