[EricH]

Originally Posted by yash101

Can't you spring-load a sprocket to do automatic tensioning? (or am I missing the point here?)

You're missing it--the point is that they don't want to use ANY tensioning if at all possible.


That said, I've seen folks just put a loose sprocket into their chain runs that need tensioning--best one I saw was a rubber one in the drive chain; ran back and forth as needed to get a good tension. Though I do second the Delrin recommendation. If you happen to be running the chain over structural members, stretch the chain over a block of Delrin on one of them, and let the chain dig in a bit until it finds its happy zone.