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Unread 04-11-2013, 23:39
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I am Dave! Yognaut
AKA: Brian Bray
FRC #1296 (Full Metal Jackets)
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Re: Shifting Gearboxes

Quote:
Originally Posted by smistthegreat View Post
Team 67 would like to disagree with you. This is taken from their 2012 Engineering Design:
"Since we are not using pneumatics on our robot but we want higher power shifting than servos will provide,
a Window motor shifter was designed to switch between high and low gear. This design uses an opposing
cam design to push or pull the dog gear in the transmission from high to low gear. Springs were designed
into the arms to allow for each side to shift at different times without destroying the other side. We were
able to package this design so that it fits right between our gearboxes and take up no more room than a
pneumatic setup."

You are right. But I think the main point he was trying to bring is not to use servos, which 67 clearly states they did not and why.
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