Subject:
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Re: opposite of float command for nqc ?
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Newsgroups:
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lugnet.robotics.rcx.nqc
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Date:
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Thu, 27 Jan 2000 00:56:07 GMT
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Viewed:
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1761 times
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In NCQ & RCX Code, "Off" is the closest one gets to "locking" a motor. It will
resist being turned, but in a crane application I can envision enough force to
externally turn the shaft. You can prevet this from happening by including a
worm gear in your setup. The worm gear can drive other gears both directions
(up & down in your case), but cannot itself be driven by the gear it drives.
Thus, when not powered, the worm gear acts as a locking mechanism. I have used
this method in crane applications, stair climbers, and other applications where
I don't want an unpowered gear train to slip.
Good luck!
- Jeff Barrett
In lugnet.robotics.rcx.nqc, Jason White writes:
> is there a command for ncq the lock a motor in place, sorta opposite to the
> float command? I have a arm that i have made and it sits sorta like a crane
> with a motor to rotate it up and down. Problem is i need it to stop at the
> bottom to pick an object and move up and stay locked. I've used all motors
> and outputs so i was hoping for a software solution.
>
> thanx.
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 | | opposite of float command for nqc ?
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| is there a command for ncq the lock a motor in place, sorta opposite to the float command? I have a arm that i have made and it sits sorta like a crane with a motor to rotate it up and down. Problem is i need it to stop at the bottom to pick an (...) (25 years ago, 27-Jan-00, to lugnet.robotics.rcx.nqc)
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