yacs three arm compact coin spinner
thingiverse
Yet another coin fidget spinner. This one is a compact three arm version. My personal favourite of the bunch. The centre hole is for the standard 608 skate bearing, 22 mm × 7 mm. There are several ready-made STLs there, for coins i had lying around: * Nine 20 eurocent coins * Twelve 5 eurocent coins * Twelve 1 eurocent coins * Nine UK 2p coins * Twelve UK pennies * Twelve 1 角人民币 (1 Jiao RMB) coins * Twelve 50 eurocent coins (For this one you have to set the coins/arm by hand. Also, the image shows it rotated by 90°, but it works OK in slic3r anyway.) The 1 eurocent version is somewhat smaller than the other ones, with thin wall between the bearing and the coins, and an thinner outer wall, compared to the other STLs.
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