Steve Rundell and fellow engineering students at Michigan State University never go thirsty, thanks to the ingenious automatic drink-making machine they designed and built. The contraption allows the "bartender" to select various drink mixtures displayed on an LCD screen. A controller sends a signal to a servo motor that drives a rotating carousel, which positions the drink cup under the appropriate liquid reservoirs. A solenoid valve opens, automatically dispensing a predetermined amount of liquid into the cup.
Drink-o-Matic 3000 Parts List
Allied Part #
Solid state relay
Additional parts required: dc servo motor, solenoid valve, desk lamp, lazy susan device, wire, 2-liter bottles for liquid reservoirs, various lumber and plumbing products (there's a lot of leeway for creativity in this design)
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DIY candy, journeys to Mars, coding for road trips, and more. These STEM (science, technology, engineering, and math) activity options will keep kids engaged this summer, from 10-minute activities to more advanced undertakings.
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