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Unread 11-03-2010, 16:24
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Peter Matteson Peter Matteson is offline
Ambitious but rubbish!
FRC #0177 (Bobcat Robotics)
Team Role: Engineer
 
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Re: Drivetrain issues

Quote:
Originally Posted by Bharat Nain View Post
8 high traction would do it. Maybe the 4 end wheels can be shaved down somehow? That would make it easier for you to turn. Pictures would be great.
Not necessarily...

We have 8 of our traditional high traction wheels on our drive base this year and can turn with all 8 wheels down using only one motor on each side. We proved this in testing our drive base while determining if the second motor for our drive would be a CIM or a Fischer. Our prefered method however, is to lift the the outer 4 to reduce current draw but it is not necessary.

If you are breaking keys I would suggest that maybe your keys are too small for the application, or as Greg already mentioned it's your gearing. I highly reccomend the use of hex shafts for power transmission when ever possible. with the fact that AndyMark sells hex bearings this is much easier to execute now as well..
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