pic: Vex transmission (bottom view)

[s_forbes]

Originally Posted by Dan_Karol

Redundancy is always a good thing, especially when the breaking strength of the gears are not advertised like in vex. At the Massachusetts regional over at QCC we broke 4 of the small tooth gears on our arm. But my question for you is where is the shaft collar for the motor's axel? Aren’t you afraid of it slipping out at a competition and loosing that side of your drive?

The shafts shouldn't fall out; I roughed up the ends of them so that they don't slip out of the clutches. I've used this method on several other robots, and as long as the shaft isn't getting a bunch of side load it stays in.

And I'm not actually in the competition, I was just playing around with some ideas for the game.