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How college students built the fastest Rubik’s Cube-solving robot yet

A close-up of a Rubik’s Cube inside the cube-solving robot.
The student-built Purdubik’s Cube set a new Guinness World Record by solving a Rubik’s Cube in just 0.103 seconds. | Photo: Matthew Patrohay / Purdue University

A team of Purdue University students recently set a new Guinness World Record with their custom robot that solved a Rubik's Cube in just 0.103 seconds. That was about a third of the time it took the previous record-setting bot. But the new record wasn't achieved by simply building a robot that moves faster. The students used a combination of high-speed but low-res camera systems, a cube customized for improved strength, and a special solving technique popular among human speed cubers.

The Rubik's Cube-solving robot arms race kicked off in 2014, when a robot called Cubestormer 3 built with Lego Mindstorms parts and a Samsung Galaxy S4 solved the iconic puzzle in 3.253 seconds - faster than any human or robot could at the time. (The current world record for a human solving a Rubik's Cube belongs to Xuanyi Geng, who did it in just 3.05 seconds.) Over the course of a decade, engineers managed to reduce that record to just hundreds of milliseconds.

Last May, engineers at Mitsubishi Electric in Japan claimed the world record with a robot that solved a cube in 0.305 seconds. The record stood for almost a year before the team from Purdue's Elmore Family School of Electrical and Computer …

Read the full story at The Verge.


Link :
https://www.theverge.com/robot/676047/purdue-university-robot-rubiks-cube-guinness-world-record-solving
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