This cool design of fidget spinner uses one 608RS bearing and couple of very small 623-2ZR bearings.
Steel balls are my usual with 8.72mm diameter.
Printed on my Rebel 2 with three different filament.
Yellow, orange and blue 1.75mm.
Buy my spinners at:
https://www.etsy.com/shop/WinterSmoker
You can buy some of the models here:
https://gumroad.com/wintersmokerdesign
Support me by shopping through this links:
PLA filament
http://s.click.aliexpress.com/e/IIeyFMf
http://amzn.to/2nqw0xe
https://goo.gl/E17WXy
608 Bearing
http://amzn.to/2mU5q3d
http://s.click.aliexpress.com/e/Ubyr7iA
https://goo.gl/lb4sm6
One 623-2ZR bearing
http://amzn.to/2mTXUW4
http://s.click.aliexpress.com/e/UJAi2na
https://goo.gl/JBdaog
1 M3 10mm screw
http://amzn.to/2mN9HET
http://s.click.aliexpress.com/e/Rb2JQfu
https://goo.gl/ufkXN9
Music: http://www.bensound.com