Magnetic, Interchangeable Spinner

thingiverse

Yes, the world is burned out on Spinners, they had their day - and it's gone. That said, full disclosure here: This spinner concept is my daughters idea (age 13 at the time) - I just polished the mechanics and fit. What's different about it: *It has three unique components, you need all three to make one spinner. The two halves are mirror opposites. *The addictive SNAP of the magnets as the two halves click together *The mini spinner embedded inside can be a standalone finger spinner *The cool pushbutton action when you press on the bearing if the spinner is laying flat. (Useless feature, but fun to press the button) *Prints are simple and fast This is a fun 3D printing project because its something functional, tradeable, highly interchangeable, and fits into a pocket or backpack. Printing in PLA: *No supports *20-30% infill for upper and lower halves *40-50% infill for mini spinner inside (the rolling bearing presses into it, it needs to be a bit stronger) *0.15mm layer height on everything *I recommend using glue on the heatbed, a very thin, uniform layer Other components you'll need: *Eight .125" diameter by 0.125" long magnets (my favorite place for ordering magnets is www.KJMagnetics.com, these are about 16 cents each) *Four, 1/2" diameter ball bearings (these don't need to be precision) *One, rolling bearing (608ZZ trade size) This is a just a common skateboard bearing. Measure the outer diameter of the rolling bearing and make sure it's .866", x .276" thick (Just take one out of your other old spinners) Cheers, Mark