Quote:
Originally Posted by cadandcookies
While chains do not stretch over time like belts do, they do wear over time, which has a very similar effect. For the most part in my experience neither phenomenon is typically noticeable in a robot during a standard (1-2) event season, but both can be observed on a practice robot with sufficient hours of use. In a high-use demobot, both have a potential to give you issues if you use it long enough.
Both chain in tube and belt in tube have been done successfully in competition-- 1625's Lobster Drive and of course 118's chain in tube come to mind as examples of belt and chain respectively.
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I'm more concerned about the chance of snapping a drive belt, rather than the wear. It's nearly impossible to snap chain in FRC if assembled correctly, from my (limited) experience it's quite a bit easier with belts.