Thread: 971's chassis
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Unread 23-05-2014, 18:15
AlecMataloni AlecMataloni is offline
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FRC #0111 (WildStang)
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Re: 971's chassis

Quote:
Originally Posted by Thad House View Post
Why do you guys run 3/16 drop? I've heard 254 does this as well. With the smaller chassis, we've found that you can completely remove the drop and still have just as great of turning. Our's was actually built for a 0.1 inch drop, but because of the wear on the center wheels after a few matches our drop was basically non existent, and it seemed like our turning and pushing actually improved when this happened. Looking at Chris Hibner's old paper on turning physics, it actually makes sense because with shorter chassis the effective wheelbase is almost identical to the dropped wheelbase on the old size.
From my understanding, Blue Nitrile conveyor tread from mcmaster is very "grippy" and doesnt wear fast. Depending on their wheelbases AND tread width, teams like 1323/254/971 etc use 3/16 drop to minimize wheel scrub. This is because of their previous experiences designing drivetrains utilizing the material.

Last edited by AlecMataloni : 23-05-2014 at 18:21.