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 When we learn physics, we almost always "ignore friction". The real world never does... - Mike Betts [more] |
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| When we learn physics, we almost always "ignore friction". The real world never does... - Mike Betts [more] |
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#4
01-04-2009, 17:27
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Re: polyurethane tubing
We're using the yellow 1/4 inch polyurethane shingle routhane tubing from McMaster. Make sure you buy the barbs that hold them together. Don't pay for the $300 welding kit or try to weld them yourself because you'll have belt failures and it's EXPENSIVE.
We have them cut about 10% shorter per foot to make up for stretch. We also have spans of no more than 1.5 feet between rollers. We've had 0 belt breaks, so they work  . |
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