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Unread 19-05-2011, 15:12
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Jared Russell Jared Russell is offline
Taking a year (mostly) off
FRC #0254 (The Cheesy Poofs), FRC #0341 (Miss Daisy)
Team Role: Engineer
 
Join Date: Nov 2002
Rookie Year: 2001
Location: San Francisco, CA
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Re: Sheet Metal vs KitBot

Quote:
Originally Posted by DinerKid View Post
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
Two things that you can do to help alleviate (but never entirely eliminate) stretch:

1. Use #35 chain. Stretches much, much more slowly than #25.

2. Use high quality chain. You get what you pay for - we have found that different manufacturers' chain tends to stretch at very different rates.