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Robot smashes Rubik's cube record, solves puzzle in 0.38 seconds

10 March 2018

The bot uses six Kollmorgen ServoDisc U9-series motors in order to solve the Rubik's Cube at unheard-of speeds.

The previous world record was 0,637 sec. and belonged to the work of Sub1 Reloaded, developed by the German albert the bear.

The video below demonstrates the Rubik's cube in an unsolved position and after that the actuators bounce vigorously, slamming squares into place like some kind of crazed version of Will Smith's character in The Pursuit of Happyness. 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. In a blog post, Di Carlo explained how previous record-holders used stepper motors to rotate the cubes, and he realized that they could do better with improved motors. The Rubik's Cubes cost $4.55 and the PlayStation cameras cost $7.

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In the case of the Rubik's Contraption, this allowed the machine to calculate a solution even faster, by making each move more and more precise.

They had to prevent the cube from 'camming, ' or rotating, outwards as the robot rapidly moved the pieces around.

Meanwhile, if you want to take on the fastest person to solve a Rubik's Cube, check out SeungBeom Cho, who solved a Rubik's Cube in just 4.59 seconds in October previous year. The algorithm designed inside the cube determines the step by step process involved in solving the Rubik's cube.

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"The machine can definitely go faster, but the tuning process is really time consuming since debugging needs to be done with the high speed camera, and mistakes often break the cube or blow up FETs", Katz wrote on his blog, where he also detailed the build.

The motors are now making each turn in 15ms, though the rated speed should allow for turns as fast as 10ms.

"For the time being, Jared and I have both lost interest in playing the tuning game".

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Mr. Beer is considered to have made a world record by creating a robot that finished the Rubik's puzzle in 0.637 seconds.

Robot smashes Rubik's cube record, solves puzzle in 0.38 seconds