3x3 Puzzle Cubes with Gears - June 2020
Joseph L. Hazelton, Contributing Editor
The article "3x3 Puzzle Cubes with Gears" appeared in the June 2020 issue of Power Transmission Engineering.
Looking at a Gear Cube XXL, you can't help but think about a Rubik's Cube. Both are 3x3 puzzle cubes with brightly colored pieces. Moreover, both are sold commercially as toys.
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