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Andrew and his brother built this great ping-pong ball launcher out of salvaged and repurposed parts. I especially like the 13-ball hopper made from two paper towel tubes taped together, and the clever K’Nex-controlled release mechanism. The launcher is controlled with an Arduino connected to a computer and activated via a remote desktop app from a phone or iPod Touch. See this video for an explanation on how it works.

John Baichtal

My interests include writing, electronics, RPGs, scifi, hackers & hackerspaces, 3D printing, building sets & toys. @johnbaichtal nerdage.net


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