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Unread 18-03-2015, 16:13
GreyingJay GreyingJay is offline
Robonut
AKA: Mr. Lam
FRC #2706 (Merge Robotics)
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Re: What to use for ballast

Quote:
Originally Posted by vhcook View Post
Have you modified the dumbbell? If it is an unmodified dumbbell, it should be a COTS part, and does not count toward withholding. If it has been drilled or otherwise machined to facilitate connection to the robot, then it is not COTS anymore, and does count.
This is how I understood the rules, but I keep being told by other people on my team "no, we can't bring weights".

Bringing a COTS weight, such as a dumbbell or a piece of steel bar, and figuring out how to modify it AT the event to attach it to the robot (assuming that velcro straps are unacceptable), is legitimate, according to how I read the rules.

Quote:
Originally Posted by JamesCH95 View Post
We've taken a metallic pneumatic storage cylinder and filled it with all of the scrap metal, chips, bolts, etc that we can cram into it. A neat, safe, adjustable method of adding ballast. And it seals up really nicely with a few 1/4-npt plugs.
But that makes it not a COTS part, right? So this cylinder-full-o-junk is considered part of the 30 lbs? But if you bring the empty cylinder, the plugs, and a bag of bolts and put it all together at the event, then it's not?

Sorry if this seems like a n00b question, I'm new here and still trying to figure out the rules
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