DIY weaponry gets more lethal with each passing year; where once we were content with a simple foam missile launcher, technology has progressed such that our automated turrets now spew screwdriver bits, airsoft and paintballs. As progress forges ahead, two engineering students at the University of Arkansas have added injury to insult with this four-stage DIY coilgun. Using an Arduino microcontroller to actuate the firing mechanism and steer the monstrous wooden frame, they nimbly control the badass kit with an iDevice over WiFi, and line up targets using a repurposed PlayStation Eye webcam. While we'd of course prefer to have our phone SSH into the gun over 3G, we're not going to argue with success. We'd like to keep our lungs un-perforated, thank you very much. See it in action after the break.

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Students accelerate cubicle arms race with PlayStation Eye-tracked, iPhone-guided coilgun (video)