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Originally Posted by LordBritten
Mt team used #25 chain last year and our chains would break all of the time. that is why lost in the semi-finals at the Portland regional we did not have time to fix the chain.
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If you design the drive train correctly, you should never have any problems. (use large sprockets, dont have any slack, have chain guides)
We have been a high traction robot for two years with our 6WD system. The secret is the larger sprockets, it allows for more chain to go over a single sprocket than a smaller sprocket, which would give you more torque. Think of it as a bicycle, if you put your bike on the highest speed, it causes you to push harder (which also puts more tension on the chain), if you put it on a low speed, there isn't as much tension on the chain. The same applies with using 2 large sprockets or 2 small sprockets. The weight cost to go to larger sprockets is minimal, and will save you at competition.