Learn to design this by taking the Fusion 360 for 3D Printing Course at https://www.desktopmakes.com/ A site for Fusion 360 tutorials, classes, and online learning.
Also visit my youtubes at https://www.youtube.com/desktopmakes
Geared fidget spinner. Print 4 gears, 2 sides, and 2 finger pads. Uses a standard 608 bearing.