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Unread 13-05-2014, 09:42
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Mechanical Engineer
AKA: Craig Boezwinkle
FRC #2811 (StormBots)
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Join Date: Oct 2008
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Re: Ball Shifter Force Requirements

Quote:
Originally Posted by Rauhul Varma View Post
I don't know how much this helps, but our custom ball shifter engages correctly with less than 10 lbf pulling/pushing the shifter shaft. That being said we have a 45 deg taper on our shifter vs Vex's ~60 deg (iirc) taper.

Actuator Details:
Bimba Flat 1
7/16" Bore, 3/8" Throw limited to ~.28"
Engaging from 45 to 60 psi
Thats interesting, thanks for the info. What made you choose 45 degrees vs 60? Was your shifter also modified so that the balls were closer together? The Vex shifters are spaced apart by 0.5" so the full cylinder stroke travel is required.
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