I wanted the utility of a Lego like part, but the pretty almost steampunk effect of spokes, and I wanted it all to be autogenerated.

The default values are NOT Lego compatible, but you should be able to put in Lego compatible values with the customizer.

If you need a wheel bigger than 100mm, scale back your values, then scale up the part before printing it.

Be careful as you adjust values. There are still some bugs.

Bugs I fixed:
Wheel diameter cannot be less than hub diameter.
Hub diameter cannot be less than axle diameter.
The formula for the spokes was having issues when spoke count got less than 5.
High values of Rim thickness produced off parts.

Known Bugs:
Trying to Fix the graphical glitch with the customizer preview.

For your reference:
http://www.cailliau.org/Alphabetical/L/Lego/Dimensions/General%20Considerations/
LEGO AxleDia = 4.9
LEGO HubWidth=6.2

Prusa

Prusa Clone

Doesn't Matter

No

The flat bottom is specifically designed to make this easy to print without support. It should be possible to glue two of these back to back to create a symmetric part.