Who didn’t play with K’nex as a kid? The plastic building toy was second only to Lego.  is obsessed with K’nex and has built his greatest and most complex K’nex machine yet. 

Over the course of 8 months, he used more than 40,000 pieces to create 21 different paths using 8 motors to lift balls up 5 tracks. To control his monstrosity, he used a special computer-controlled crane, as well as two computer-controlled illuminated K’nex balls.