Arcade Trackball Encoder Wheel (customizer)

### Very customizable trackball encoder wheel.

Replace a wheel, or fine tune trackball performance.

Files included here are:
* encoder-std.stl - this approximates an encoder wheel that comes with a common arcade trackball
* encoder-hi-def.stl - This has a very fine setting, which should make a trackball very sensitive
* encoder-default.stl - this is just the default settings, for no particular reason

See the customizer settings for all the various options. You can adjust size, thickness, etc. - pretty much everything. Most of the default settings align well with existing arcade trackballs (happ, betson, groovygamegear, etc). The most interesting settings I think are "spokes" which lets you fine tune the response of your trackball by specifying how many spokes in the wheel, and "ratio" which lets you make spokes fatter or thinner compared with the gaps between them.

There is an option (on by default) to include text on the wheel with the number of spokes, and the ratio of spoke t