Newton's Disc Fidget

This educational fidget spinner has a satisfying optical illusion when spun fast enough!  Mix and match whatever colors you have on hand and see what colors are produced.

This model features:

• Easy printing without supports
• Just under 1 hr total print time
• <18 g of filament
• No AMS required

The red-blue-green version actually ends up looking more gray than rainbow when spun and observed with the naked eye, but I couldn't get my phone camera to capture the color accurately.  The large ROYGBIV version has kind of a trippy rainbow look when spun.  The smaller rainbow version spins faster and looks more tan than white because of the colors I had on hand.

Have fun, and post the pics/gifs of your makes!