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Re: Turns out Helical Beam Couplers aren't meant to handle that much stress . . .
For FRC applications, we had success with using a coupling nut ( http://www.mcmaster.com/#93023a661/=rw83fu) welded to the lead screw. The 1/2" hex interfaces well with a lot of FRC components, making it very easy to drive. We supported the lead screw on each end with thrust and ball bearings. Our lead screw was ~18" long and flexed a bit since we didn't load it evenly, but the setup did a good enough job of isolating the screw from everything else to be very reliable.
We used this in 2010 on our kicking mechanism.
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--Madison--
...down at the Ozdust!
Like a grand and miraculous spaceship, our planet has sailed through the universe of time. And for a brief moment, we have been among its many passengers.
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