yacs three arm compact coin spinner

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.