Quote:
Originally Posted by Andrew Lawrence
It doesn't. For FRC use most 35 is fine C-C with no tensioning system. As long as your chain runs aren't longer than 17" or so you're set for the season.
Asid, I'd stray away from making assumptions like that that you're not completely sure of. Misleading information like that is dangerous. I believe Anant usually made a point about misleading information to students each year. I remember he told me directly when I spoke to him at your workshops a few years back.
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I don't think he's misleading anyone Andrew.
And in away you are more so misleading, stating that "it doesn't" and is "fine" for "most" use. And how did you arrive at the 17' number?
And for this type of questions really depends. How precise can you make the C-C with your fabrication techniques, what length run, what kind of power is being put though the chain etcetcetc. The key as usual is making sure the
sprockets are lined up and proper tension is applied.
With the WCD type design adding in adjustable bearing blocks are easy and imho give lots of ease at mind for anything that could come up. Abit I personally used and seen C-C on chain work IF the machining tolerances are held up to spec (personally I did +.01 for a 15in run) and on a HAAS mill so it was dead on. But again it comes down to testing and experience.
My suggestion, always have some kind of tensioner and in many industrial applications this is an requirement to.
Edit* Forgot this, but C-C is a great thing and works great on theory and sometimes in real life... but I've seen it fail quite often in practice due to many reasons. And know teams that have regretted it more the once.