Some Versa Chassis Questions

[ksafin]

I had some questions about the Versa Chassis and I hope some of the drivetrain-gods in this forum could enlighten me.

I'm using this image for my examples (http://www.vexrobotics.com/media/cat...rsachassis.png)

1) Wherever you place versablocks for wheels, you will have to cut a circular hole through the tube stock in order to get your axles on, correct? That is, the tube stock comes completely undrilled and that part comes down on you

2) Where does the actual power transmission come in? Although putting it in the tube stock would be a great space-saving measure, it seems to me that the picture shows sprockets on the inside of the chassis.

3) The gearbox in the picture has me confused. Where is the output shaft? It doesn't look like there's anything on the inside of the chassis that can be chained to the sprockets?

4) I'm assuming rivets are pretty much mandatory for use with VersaChassis, since none of us are going to be holding bolts somewhere in the middle of a 4 foot tube stock.

I guess if anybody can give me a quick laymans run-down I'd appreciate that too.

Thanks