Go to Post In my opinion, the hardest part of the competition is not that actual manufacture of the robot, but the design process. It is the enginners that go through the design process all the time that will have the edge in this competition, not the best machinist. - Wetzel [more]
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Unread 18-01-2005, 19:35
sanddrag sanddrag is offline
On to my 16th year in FRC
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Re: pic: Team 955's take on 4 speeds (back)

Having a shaft supported by three bearings is like an over-constraint. The only way you should even consider doing this is if you are certain you can keep tolerances to around .0004 (yes 4 ten-thousandths) and trust me, that is not an easy thing to do, even on a CNC.

Will it work with three bearings on a shaft? Yes. Will it bind and cause a loss of efficiency? Yes.
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