Fidget Gear Keyring - Easy assembly

Summary This is a remix of the Fidget Gear Keyring Mini by Evaken. I liked the idea, but didn't like the assembly and the need of nuts and bolts. So I reduced the number of printed parts and eleminated all hardware. Just snap the gears on the axis and you are ready to go :) **UPDATE** 09/17/2021 added 6.4 and 6.2 gears upon request I still recommend 6.6 gears since they are working for years now! *UPDATE 06/26/2017 added new files: body_rounded_new.stl - which provides a better feel while fidgeting. sharp edges were substituted by rounded edges. body_rounded_web_new.stl - same as above, but with my web address gear2_6_6_c.stl - all corners have been chamfered for better haptics, inner diameter is 6.6 which worked best for me on the UM² Please don't forget to show a photo of your make / color combination :) gear1 is a tighter fit than gear2. Both worked well on my UMO. Start with gear1_6.8mm (which means 6.8mm hole diameter). Let me know if you need other diameters. Filament: Extrafill