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Re: 6 wheel drive with chain tensioners and shifting
There are several sources for the 1" nylon inserts if you want to go that way. Mcmaster.com has them. We've been using the 80/20 Quickframe series and so far have never had a failure of an insert. http://www.8020.net/Quick-Frame-5.asp
These are designed to be used with their 1" aluminum box that have little groves inside to to hold in the inserts. We always drive in a sheet metal screw or 10-32 bolt just to make sure they don't come apart. The profiles are at http://www.8020.net/Quick-Frame-4.asp.
Compared to normal 80/20 extrusion it's more of a pain to work with but it's almost exactly half the weight.
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22 motors? Challenge Accepted. - gyroscopeRaptor [more] 
23-05-2010, 16:08
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