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Originally Posted by lukevanoort
What is your particular worry about having more frictional force? If it has to do with turning, using a six wheel drive should work with any coeff.
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For example, if my robot was in a pushing match with another robot but unable to move it, the transmission would need to put out enough torque to cause the wheels to spin before the fuses blew. If the weight limit was increased, creating a larger frictional force which would have to be overcome by a transmission that wasn't designed to put out that much torque.
Of course this could be easily fixed by changing the gearing in the transmission, but I'm not looking forward to making changes and testing a new transmission in the constrained conditions of the 6 week build period, especially when my team doesn't have the resources to quickly create parts for a new transmission.