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Unread 09-01-2013, 12:24
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Nuttyman54 Nuttyman54 is offline
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AKA: Evan "Numbers" Morrison
FRC #5803 (Apex Robotics) and FRC #0971 (Spartan Robotics)
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Re: Gear Ratio to Maximize Chassis Speed?

Quote:
Originally Posted by F22Rapture View Post
Have teams noticed much difference between 2 CIM and 4 CIM drivetrains, outside of pushing power? We might cut it down to 2 to save weight if it doesn't substantially affect speed and maneuverability.
I would not recommend this, you will notice a significant decrease in acceleration, and your robot will feel sluggish. In addition, you would have to change your gearing or you would likely not be "traction limited". That is to say, when your robot hits a wall or gets in a pushing match, your wheels will not spin.

You might think this is a good thing, but it means that your motors are stalled and drawing maximum current, which will very quickly blow your drivetrain breakers (and could possibly blow your 120A main breaker).
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