MECHANICS - ROBOT CHASSIS CONSTRUCTION - 0 views
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Large diameter wheels give your robot low torque but high velocity. So if you already have a very strong motor, then you can use wheels with larger diameters.
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But if your motor is weak (such as if it does not have any gearing), you want to use a much smaller diameter wheel. This will make your robot slower, but at least it has enough torque to go up a hill!
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Wheel width. You do not want it too wide as it causes increased resistance to rotating the wheel on a surface.
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