Here’s a machine you’ve been waiting for to tidy up all those partially solved Rubik’s cubes rattling around in your drawers at home. The Cubestormer 3 robot set a new world record at the Big Bang science fair in Birmingham UK this weekend. It solved the cube in 3.253 s which beat the previous record of 5.27 s held by the same team since 2012.
Cubestormer 3 is the result 18 months of design work by co-inventors David Gilday, a principle engineer at ARM, and Mike Dobson, a security systems engineer for Securi-Plex. “We knew it had the potential to beat the existing record but with the robot performing physical operations quicker than the human eye can see there’s always an element of risk,” said Gilday, “Our big challenge now is working out if it’s possible to make it go even faster.” The robot uses a Samsung Galaxy S4 Smartphone running an Exynos 5 Octa application processor with an eight-core ARM big.LITTLE implementation with four Cortex-A15 and four Cortex-A7 processors.
The phone camera analyses the cube, works out the sequence of moves then controls four robotic hands to work their magic. The manipulations are not so simple because the cube design allows for twists before the sides are fully aligned.