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Unread 27-02-2010, 15:34
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Re: pic: MORE Robotics 1714 Polycarb Wheels

Well, in this instance, the only thing that can change the moment of inertia on the drivetrain is the mass if the moment is too high. If it's too high for comfort, you could easily cut 12 ounces out of the wheel with a drill press and 6 holes while maintaining strength if they absolutely had to.
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Unread 27-02-2010, 15:52
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Re: pic: MORE Robotics 1714 Polycarb Wheels

Quote:
Originally Posted by Molten View Post
I have to agree with Craig, there are definite acceleration issues when you increase the weight of a wheel. This happens because the added weight resists motion and will fight you every time you try to change your direction of rotation or speed of rotation. This means slower to get up to speed, slower to stop, and more force on everything that powers the wheel including the chain and axles.

I like the creativity to get the center of gravity lower, but I really think you should bring alternative wheels if these give you too much troubles in competition.
We had time to do some decent test driving, and mobility did not seem to be an issue. It was every bit as fast, if not faster than I expected.

http://www.youtube.com/watch?v=xQJvj--2NXg

That is a video of us driving, and if it seems a little slow to you, this is all in low gear. Unfortunatly, I didnt get any video of it in high gear, but trust me, for this game it is plenty fast.

Thank you for the advise though, I personally had no idea about wheel weight affecting mobility, however I am sure people on the drive train team took this into consideration when designing the wheels.
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