oddbot mod

Basically, I had a flashback to [Silent Running](https://en.wikipedia.org/wiki/Silent_Running) and Dewey, Huey and Louie.

So my [balancing bot project](https://www.thingiverse.com/thing:3611540) is Dewey.

This one is Huey.

It is a "remix" of [oddbot](https://www.oddguitars.com/oddbot.html). This is not associated with [oddbot](https://www.thingiverse.com/oddbot/about) and certainly not [oddbot](http://www.oddbot.net/).