Ball Bearing Spinner 3-4

thingiverse

Spinners using 608 bearing in the middle and 5/8 ball bearings for weight. Including some taller caps so when you set it on a flat object it will clear the balls and spin freely. I got a box of 50 ball bearings from Amazon for $18.25 https://www.amazon.com/gp/product/B007B2AD70/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 For my first test I picked up just a few from Ace Hardware, but more expensive buying them that way. The caps in the pictures are the circle and crosshairs pattern. The plain (TallPlain and KAP4.1NEW) are just a smooth flat bottom. Videoshttps://youtu.be/hmLTzb4DPaIhttps://youtu.be/9oPLGj8kDA4 Print Settings Printer Brand: SeeMeCNC Printer: Rostock MAX v2 Rafts: No Supports: No Resolution: .3 Notes: Printed at .3, 5 perimeters, 0 top and bottom layers and no infill. Use infill for caps. I am still looking for the perfect settings for those, 100% infill makes them too tight, 50% is a smidge loose. Try 75%. I usually sand the tops (small center) on a flat surface with sandpaper to flatten them and make sure they don't bump each other from any nubs left from printing. You should be able to pop the bearings in from the bottom side without having to scrape the edges, it usually seems slightly looser that the top. If its too loose, increase the bottom layer extrusion to compensate. The outer bearing sleeves are cut out with a sphere so the center is wider than top and bottom. There will be a little play in them, which I kind of like because it make a little rattling sound when you hold it on end or move it around, when spinning horizontally it is smooth and silent. The 3 bearing design is my new all time favorite spinner. Hope you enjoy.