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Unread 17-12-2013, 00:04
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Re: Some Versa Chassis Questions

Quote:
Originally Posted by ksafin View Post
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
1) You need to cut a slot, or at least an oversized hole for the axle. The Versablocks bare the load, you just need a clearance hole for the axle. I said a slot so you can take advantage of the cam tensioning.

2) You are correct, the sprockets are on the inside of the drive rail. The axles are live axle, which means they transmit power through them, either through a key or (in this case) hex.

3) The output shaft is in line with the wheel closest to the gearbox. That wheel is directly driven from the gearbox. There are two sprockets on this inside of the gearbox, like this, which transmits power to the other wheels

4) Rivets are your friend

Quote:
Originally Posted by yash101 View Post
To tell you the truth, I haven't played around with these, but it looks like there is only one drive wheel on each side, on direct-drive. That seems pointless, but is a possibility!
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Last edited by Gregor : 17-12-2013 at 00:09.