Robot Solved a Rubik’s Cube in 0.38 Seconds and It Can Still Go Faster

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Solving a Rubik's Cube might exist something humans tin can practise in as low as 20 seconds; in fact, some people take been known to exist able to practice it under 5 seconds (with a 15 seconds examination time excluded, though). The point is, humans have gotten pretty good at solving i of the most archetype puzzles invented past homo.

However, robots have been consistently chirapsia humans by a huge margin at this exceedingly homo task for a long time. Robots easily clock nether a second when information technology comes to solving a Rubik's cube, and people keep making them better.

Now, two hardware hackers, Ben Katz and Jared Di Carlo have succeeded in making a robot that has beaten the previous record for a machine solving a Rubik'southward Cube. Their robot was able to solve a Rubik'south Cube from first to terminate in but 0.38 seconds. That's an impressive xl% improvement over the previous car held record of 0.637 seconds.

In a blog post, the inventors of the robot said that they noticed virtually of the other inventors were using stepper motors to rotate the cube in the robot's hands, and they thought that they could do better if they had improve motors to do information technology.

So they came upwards with a custom-built controller that would allow a unmarried rotation of the Rubik's Cube to be completed in 10 milliseconds, allowing the robot to complete a Rubik'due south Cube in around 25 seconds on average (since a solution is usually effectually 23 steps).

All the same, their robot currently makes a rotation in every 15 milliseconds due to tuning issues and more that the inventors are currently not interested in solving. That said, Katz did mention that they could come up back to the tuning problems and solve them at a later time which should, theoretically, meliorate the solve times by around a 100 milliseconds.