Quote:
Originally Posted by richardmcc2
Has anyone actually broken a chain on a drive system before? I've never heard of something like this and would think it'd be very difficult to do on a FIRST robot, even if you're only using #25 chain.
Is there anything special to watch out for or particular situations to avoid when designing a chain system to prevent the chain from breaking? What kind of situation in a match would cause this?
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Yep... It happens when you replace a screw very quickly between matches in the path of your chain with a head that is too big (re: socket head cap screw as opposed to a nice button head, or better yet, a countersunk screw).
Those protruding heads tend to put stress on not only the chain itself, but the retaining clips and "break" your chain when it is very much unwanted... (re: in the middle of a match.
)
Leasson learned: Use countersunk screws in the path of a chain, and have plenty of extra's around in case you need more.
