Kids in the neighborhood have been showing up with fidget spinners so I have been checking them out. Here is a video where he turns one into a top...
That video inspired the one below...
Spins ~9 sec as a top and up to 14 sec as a spinner.
Details on
blog page.
This one, too...
Gear and bearing friction and lousy aerodynamics make short spin times par for the course with planetary spinners, but no matter: When I dumped a pile of LEGO fidgets on the table at a recent committee meeting, they were snatched up and seldom put down -- especially the planetaries.
My favorite planetary spinner (orange below) goes ~6 sec with a nice mechanical sound. It doubles as a tops at 2:28 and 5:47 below.
Details in video description and on
blog page.