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Originally Posted by Stonefan5271138
I saw another thread on here about using that Pulley Tensioner off the big cim motor. I modified a part of the support structure, the L Bracket to be able to mount that onto it and it works pretty well. We also used the spring that came with it to tension it. Our only concern is that pulley being round/grinded down by the chain. I'll post some pictures of it after our next meeting.
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Yeah, I thought about that when designing our tensioners, but eventually decided against it. Unlike idlers, it doesn't supply much resistances to the chain sliding sideways as well as a personal distaste for working with high powered springs. Eventually I had to ditch the design because we needed four tensioners. (Can anybody guess what we're doing? Hint: not omni) shortly therafter came the "block of HDPE" method... threw that one out due to bad experiances last year and an irritating mentor. Then came springloaded U-bolts which ended up mounted statically (although still adjustable) due to a lack of springs and length of the U-bolts. (Originally I planned to use the nice aluminum jobbies from McMaster, but they we're to wide, had to improvise)