Very Customizable Fidget Spinner
type of weights: 5/16″, 3/8″, 1/2″ nut, M8, M10, M12 nut, 608 bearing, 5/16″, 3/8″, 1/2″, 5/8″ loose ball bearing, US penny, nickel, dime or quarter, M4 square nut
number of rays
number of weights per ray
edge roundness (radius)
tapering of rays
glue grooves
Update 2017-08-17
Added “minimal” ray style that just consists of the weight frame. If using an extended ray with one weight per ray, a thin bar will connect the weight to the center.

Update 2017-05-03
added M4 square nuts as suggested by nattrassj12

Update 2017-04-25
added the option to use 5/16″ (8mm) loose ball bearings
added the option for horizontal glue grooves for center 608 bearing and ray weights
Update 2017-04-11
added the option to use loose ball bearings: 3/8″, 1/2″, and 5/8″ (tested with 1/2″ and 5/8″); for a heavy, long spinning spinner. Thanks to stolli666 for the suggestion.

Update 2017-03-27
added option to taper rays or not; without tapering, the ray will be more rectangular and less triangular

Update 2017-03-02
added M10 and M12 nut sizes
fixed low resolution bug
Update 2017-02-23
added 3/8″ and 1/2″ nut choices for weights
nuts will protrude but didn’t want to require supports or have an asymmetrical frame
Update 2017-02-15
added the ability to extend the ray length when using only 1 weight per ray
added coins to type type of weights: 4 quarters, 5 dimes, 3 nickels or 4 pennies. But I prefer nuts or bearings for weights.
A 4 ray, 1 weight per ray, 5/16″ nut, 2.5mm radius version is very compact (easy one-handed spin) and fun! Give it a try.
Customizer might time out but the Create Thing button still works
I like using vise grips to install hardware
Cheap 5/16″ hex nuts from Amazon
if a nut is loose in a PLA frame, dip nut in frame into hot water to shrink frame around nut
See my collection of all of my fidget spinner designs.