Bullseye every time – the engineering way

This is the final product of a three year long dream to create a dartboard where you get a bullseye every time – or very close to – thanks to some engineering. In a nutshell; you throw a dart and a motion capture system tracks it mid air – the board move to the right spot using 6 stepper motors and some fishing line – all of this happens in about 400ms. Or you can go for the more complete explanation from Mark Rober in the actual video.