The robot uses four USB webcams, six stepper motors, and a 3D printed frame. The only modification to the Rubik’s cube are some holes drilled in the center pieces to allow the stepper motors to ...

A robot developed by five young engineers at Mitsubishi Electric Corp. was recognized by Guinness World Records as the fastest to solve a 3x3x3 puzzle cube--almost as quickly as the blink of an eye.