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Unread 25-01-2011, 23:19
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VEX Robotics Engineer
AKA: Arthur Dutra IV; NERD #18
FRC #0148 (Robowranglers)
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Re: articulating arm help

Quote:
Originally Posted by quinxorin View Post
The mechanical solution, guaranteed to work, would be to replace your CIMple box with a wormgear. It cannot be backdriven. This is the same type of gearbox as comes preinstalled on the window motors.
Worm gears can backdrive, although depending on the angle of the teeth on the worm, the gear material, and whether it was lubricated or not, the torque required to backdrive the worm gear may exceed what the teeth of the gears can withstand. Thus, for a limited range of torque, worm gears can be considered non-backdrivable.
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Art Dutra IV
Robotics Engineer, VEX Robotics, Inc., a subsidiary of Innovation First International (IFI)
Robowranglers Team 148 | GUS Robotics Team 228 (Alumni) | Rho Beta Epsilon (Alumni) | @arthurdutra

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