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Unread 14-06-2009, 18:30
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gorrilla gorrilla is offline
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AKA: adam spears
FRC #4639 (RoboSpartans)
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Re: Crab-drive steering modes?

Quote:
Originally Posted by Sgreco27 View Post
The best thing to do in my opinion is to attach the sensor is to attach the sensor to an idler sprocket that is along the chain line that is actuating it. I'm assuming you are using chain or belt. If you are using cable, it might be a little different...I've never dealt with cable, but I've heard through the grape vine that it works pretty well...

Like Aren said, the numbers are easier if you use the same sized sprocket, but you don't have to. The math isn't too complicated if the size is different though

Is this going to be co-axial, or is the motor going to be on the module?
we are going to use the Gates-KIT-belting and pullies for steering,

its NonCo-axial,with a CIM in each module,and 2 globes for turning each set of wheels....


we thought about co-axial but we dont really have the machining tools to do it(or the experience) and we assumed it would be alot heavier(i dont know about this)

Dave-thanks for explaining that,I'd never really thought about that...hopefully we wont ever have to remove a module after we put it in(we tend to sacrifice weight for strength on our robots,06' escpecially)
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Team 1557 2007-2011 student-Lake County FL

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Last edited by gorrilla : 14-06-2009 at 18:33.