Wobble spinner 1/2" balls

thingiverse

Human: created in Tinkercad, it's a simple yet effective design perfect even for those with smaller hands, boasting a nice weight and feel. It's not a spinner, but rather a fidgeter, providing endless entertainment. A common 608 skate bearing is strategically placed at the center, while two 2.5-inch stainless ball bearings are used on the outer side. These measurements check out perfectly: mine measure precisely 12.67mm, and the designed hole fits snugly at 12.7mm. To press-fit these bearings into place, I carefully heat them up in my toaster oven, exercising extreme caution to avoid burns. With a little bit of force, the center bearing snaps right into its designated spot. Thick center caps are also designed for this human, but they're still awaiting testing. You can find plenty of useful center cap designs online, as long as they're specifically made for 608 bearings. I'd love to see your makes! Please feel free to comment with any questions or concerns; I'll do my best to respond and help out.