Radio Controlled Hamster Ball

Remixed from builttospec's original design for laser cut ABS sheets but modified for 3D printing.

I imported the dxf file into Fusion 360 and extruded most of the parts, then saved as STL files. I wound up just designing my own drive and support brackets and bearing brackets.

There are three variations of the bearing bracket that is located opposite the drive key:

* A plain bracket just like the original
* A version with space for a Futaba switch harness https://futabausa.com/product/swh-13/
* A version with space for an Apex Futaba Style Heavy Duty On/Off Switch W/Charge Port https://www.amazon.com/dp/B071HD3JL6

I used rechargeable batteries in the battery holder and wanted to expose a charge port. I had a Futaba switch harness lying around and initially used it and just used Velcro to hold the charging connector against the battery, but it came loose and got tangled in the drive mechanism, ripping the wire out of the switch harness. The Apex switch with charge port seems l