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Unread 12-02-2015, 00:51
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AKA: Gus Michel II
FRC #3946 (Tiger Robotics)
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Re: What to use for ballast

Quote:
Originally Posted by pdx View Post
Our team needs to add some ballast to our robot, and we're trying to decide if we can use some donated sash weights from old windows. Does that count as a COTS part? What about weights from old barbells? What does your team use for ballast?

Thanks!
As stated above, COTS vs FABRICATED doesn't really matter, unless you're adding it after the bagging this Tuesday.

I expect that we'll wind up using some steel "uni-strut" channel, possibly hammered (closer to) flat, simply because we already have it in-house and it's heavy.

I have used coins as weights before, but not for FRC - it was for a Boy Scouts "pinewood derby" competition. It turns out that a quarter equals exactly 1/5 of an ounce. Serendipitously, the third and last quarter installed on Gixxy's car was an Indiana quarter, reverse up, and the car placed high enough within the pack to go to our region. In case anyone doesn't know what an Indiana reverse looks like, there's the link.
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