Dart Board That Automatically Moves So You Score A Bullseye Every Time

March 21, 2017


This is a video demonstration of the dart board built by former NASA engineer Mark Roper that calculates the trajectory of your throw, then quickly moves the board so you score a bullseye with every shot. Oh yeah? *closes eyes, throws dart into opponent's chest* Must be broken.

[Mark] spent three years designing, building, and perfecting this dart board, which relies on six Vicon motion-tracking cameras and standard darts upgraded with simple infrared reflectors. It takes just 200 milliseconds for the computers powering the dartboard to predict the trajectory of a thrown dart, and an additional 200 milliseconds for the dart board's six stepper motors to move it into position. Before impact the system is able to refine its trajectory tracking and reposition the board as many as 100 times to ensure the dart hits the bullseye.

This reminds me of the time I was playing darts in college (at the London Underground Pub at Virginia Tech) and another player was sitting next to me on a tall bar stool waiting his turn and accidentally dropped a dart towards his lap and instinctively snapped his legs closed to catch it and jammed the entire tip straight into his femoral artery. The initial blood squirt hit the ceiling, I shit you not. Are you getting queasy? I'm getting queasy.

Hit the jump for the video.

Thanks to Marty, who challenged me to a game of 501, double in, double out, for a pitcher of beer. You're on, buddy!

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