Seven Gear Loop is a gearing mechanism of seven gears in a loop. Usually, a loop of gears requires an even number of gears, as otherwise the loop gets stuck. After all, the gears should turn alternatingly clockwise and counter-clockwise (anti-clockwise). However, it works for this gear set, as the seven gears are not in the same plane. See also the 9- and 11-gear versions by Blake Courter
Watch the YouTube video
Read at the Shapeways Forum
Read more at the Non-Twisty Puzzles Forum
Please order a 3D-printed do-it-yourself gear kit from Shapeways at this page (check with Oskar about screws), or contact Oskar
directly if you have you have any questions.