Halbach Effect Motor / Generator

Halbach-effect motor/generator, designed for 5x5x25mm magnets to work within the confines of a 100mm wheel axle (e.g. scooter wheels).

Note: Not tested; no idea if the thing will work at all.

https://en.wikipedia.org/wiki/Halbach_array

Inspired by thing:1693579 and thing:2635188, but with OpenSCAD code so that things can be customised.

For a disc version of this, see [Halbach Disc Motor Electric Scooter](https://www.thingiverse.com/thing:3928381)