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Unread 31-01-2011, 14:50
BoilerMentor BoilerMentor is offline
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FRC #1747
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Re: Video of Mecanum Drive Running Circles Around 6 Wheel Drives

I appreciate what you tried to do with this thread, but it doesn't look like any such video really exists.

I'll give you the reasoning that 1747 chose mecanum this year though.

1: Ability to strafe in front of the scoring grid.
2: help avoid defensive interaction.

Reason 2 was considered to be more secondary through the design process. The students also decided on a very aggressive ratio in the Tough Box Nanos that we are using (8.45:1) giving us a calculated maximum speed of nearly 14fps. Using a ratio like that completely prevents us from serving any kind of defensive role and means our drivers must use that speed to an advantage.

With the drive train (finalized) running on day number 9 of build season we were able to put it through its paces and even with as fast as it is, the robot has proven to be very easily controllable.

I guess the real relevance to this thread is that the issue I believe you to be addressing (Mecanum will lose out to a 6 wheel when you're considering defensive interactions) is absolutely the truth, but I don't believe it to be the reason teams used for choosing them.

Sorry if I missed your point.
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