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Unread 02-06-2008, 21:07
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sdcantrell56 sdcantrell56 is offline
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Re: pic: 2009 robot idea

That looks very similar to our drivetrain this year with a few exceptions, the most notable being ours was a single speed. Some suggestions I have for you. The outer wheels look like they have bearings in the frame. You dont need the bearings as the kit wheels have bearings in them. You can use a 1/2" round standoff that is bolted in place as an axle and it will serve to strengthen the frame. Also you can have the axles on the end slide horizontally in slots to tension the chain. Another thing would be to not have the 80-20 on the ends run into the standoffs. It will require very long bolts which equal more weight. Finally it is ok to use 80-20 if you really want to but using simple 1" box tubing is much lighter and if welded will likely be stronger as well.

Overall though, it is an excellent design and you should look into building it this summer to work out some of the kinks.
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