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#2
20-12-2008, 13:17
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Re: pic: Arm joint idea
Interesting idea, I like the concept. I have two major concerns:
1) Have you done the analysis on the hose clamp? Remember that it has to hold against chain tension, which can be extremely high, especially for #35 chain, which it nominally looks like the sprocket is for. 2) The bolt attachment that indexes the arm to the sprocket is going to be under a lot of torsional stress. I would recommend putting a plate or something on the other side that is keyed to the sprocket shaft somehow, or an extension from the tube that will mate more solidly with the sprocket. Otherwise I think you will see a lot of bent metal on the arm tubing and possibly a damaged sprocket as well. 
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