Quote:
Originally Posted by Alan Anderson
Perhaps you could recess the nuts inside the end of the roller.
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That thought had crossed my mind, but it didn't seem like much material would be left surrounding the nut. Maybe just recessing it half the width of the nut would work, along with a slightly larger radius for the roller. Time to draw!
Quote:
Originally Posted by WileyB-J
maybe try lathing them with a machinable nylon polymer? it would seem a touch easier and more consistent. in my opinion wood will not stand the test of time. (meaning the hub and spokes seem brittle and weak) but the idea seems mint!
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The hub and spokes seem strong enough, but you might be right about the rollers. After time the center of the rollers might wear down, so maybe getting some of
these and press fitting another aluminum tube inside would work?
Whatever you do, make it idiot-proof. Not because your drivers are idiots, but because the fewer precision maneuvers they have to do, the more awesome driving (and scoring!) they have time to do. - Ian Curtis [more] 
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