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Unread 24-02-2014, 19:35
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AKA: Mike Ott
FRC #1619 (Up-A-Creek Robotics)
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Re: Reloading Launcher

Quote:
Originally Posted by nickansh1 View Post
On a related note, many teams are using winch systems or a cam actuated radial release mechanism (the choo-choo) but how do you get the launcher to stay down until you want to launch (other than precariously stopping the motor at the exact moment the launcher is fully retracted)?
One way to accomplish this (especially simple if you are using a 1/2" Hex shaft in your mechanism is to just slip a 1/2" ratcheting box-end wrench on the shaft somewhere. This prevents back-driving. Another option is to use a worm gearbox somewhere in the mix which also tends to prevent back-driving.