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Originally Posted by JamesBrown
That is 121's chassis, I believe it was live axel,
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Looks like there are sprockets attached to the wheels to me. Dead axle drive.
Quote:
Originally Posted by JamesBrown
they tensioned the chain with out using sliding wheels.
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Hmm.. seems like they tensioned the chain by pushing in the slack in the middle of the chain run. It looks tight in this picture, but remember this is a picture from the build season. In my experience FIRST robots get about a link and half of chain stretch over an event. Having an adjustable, simple tensioner may (or may not) prove to be worthwhile.