Oh dear… what happened to Counter Revolution? And what is with that Escher-like CAD view?!
Stance Stance Revolution is the world’s first, most likely last, and currently only double-counterrotating 45-degree inclined spinner. Why? Because I take bad Facebook “Which way does it spin?” jokes stemming from the new BattleBots season too personally.
SSR features a 3D printed ABS unibody in the fashion of my recent spate of quickly build “ironic bots” which end up doing better than they should. Two 6″ 10-ounce steel discs are direct-driven off pancake-style multirotors each.
As it turns out, having two 45-degree inclined blades actually presents some interesting operating scenarios. While the counter-rotation keeps it stable during driving and maneuvering, the coupling between “vertical spinner” and “horizontal spinner” means impacts can get all sorts of interesting depending on how one of the discs decelerates. Impacts tend to spin the bot around vertically, allowing me to execute two consecutive hits. And it has a (less than desirable) dynamically stable balance position:
Stance Stance Revolution
|Weapon||Dual counter-rotating 45-degree inclined blades|
|Chassis||6″ square, 4″ total height
3D-printed ABS unibody
|Mechanical||Two wheel “corner drive”
2x Fingertech Silver Spark 22:1
2x Hobbyking Multistar 4822-350 spin motors
|Electrical||Hobbyking 2.4ghz radio system
11.1v 1.0Ah lipoly
Vex 29 drive controllers
AfroESC 30A spin controller (w/ simonK)
|Competition||Robot Battles 2015
SSR’s build thread is largely interspersed with other bots and builds here.