Robot's Rubik's revenge: Cult cube torn asunder in lightning fast solution bid


Humans may have gotten pretty adept at solving Rubik's Cubes, but as usual, the machines are coming for us! According to the duo, the data provided by their tests suggest that the robot could complete the puzzle within 0.25 seconds.

About a year ago last March, a robot called the Sub1 solved a Rubik's Cube in 0.637 seconds, earning it the Guinness World Record for being the fastest cube-solving bot. The Rubik's Contraption uses a pair of PlayStation Eye cameras in order to near-instantly analyze and evaluate the most efficient way to solve a Rubik's Cube. He added that one of the secrets to beating the previous robot's best time was using better motors.

A video posted to Katz's YouTube channel shows the machine solving a cube in 0.38 seconds. "We noticed that all of the fast Rubik's Cube solvers were using stepper motors and thought that we could do better if we used better motors", Di Carlo wrote in a blog post.

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The record for solving the Rubik's cube robotically has been smashed by hardware hackers Ben Katz and Jared Di Carlo. It took more time for the developers to fix this issue in the robot.

"For the time being, Jared and I have both lost interest in playing the tuning game", Katz, a student at the Massachusetts Institute of Technology, wrote on his blog.

Katz was generous enough to share the components he and his partner used to create the robot that established speed record.

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Every movement of the robot takes just 15 milliseconds. "The machine can definitely go faster", Katz said.

A special "speed cube" had to be used to reduce friction between the moving parts and keep the time to a minimum. That honour now appears to be in jeopardy, however, as a pair of engineers have demonstrated a new robot that can solve a Rubik's Cube in nearly half that time: A mere 0.38 seconds.

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