I designed this fidget spinner to really spin! Catch the color change on the last 5 layers to make the colors really pop! I used 7/16 - 14 nuts in adapters for counter weights. The center bearing is a common 608 series bearing. I print with a Robo 3D R1+plus. There is nothing fancy with the settings, quality was set on low, used PLA, 0.3 mm for the layer height, fill density was set at 0.15%, infill type was on "Grid" but explore your print settings, if you change anything up and something comes out great, let me know! Thanks!