Very Customizable Fidget Spinner

Customize:

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 2017-09-29

Allow for ISO 4032 M10 (16mm) and M12 (18mm) hex nuts along with the old DIN 934 M10 (17mm) and M12 (19mm). Thanks to jnse for reporting the problem.

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.

Notes:

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.

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