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Unread 19-05-2011, 15:02
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FRC #1768 (Nashoba Robotics)
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Join Date: Nov 2009
Rookie Year: 2009
Location: MA
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Quote:
Originally Posted by thefro526 View Post
I'm not sure how 1114 routed the chains in the video, but we've dead spaced axles for the last 3 years (once using the kit frame) and haven't needed a tensioner. When using #35 Chain, if your axles and transmission are spaced using factors of 3/8" (3/8" is the pitch for #35 Chain) then you'll always end up using an even number of chain lengths.
I have found that especially with longer lengths of chain the stretch becomes a big issue. A chain run that seemed perfectly tensioned may be really loose after you drive the robot hard for a few minutes. We have tried pre-stretching our chains and it helps but we still threw on some tensioner this year.

~DK
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