Subject:
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Re: Motorized control of the 5120 polarity switch
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Newsgroups:
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lugnet.technic, lugnet.robotics
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Date:
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Wed, 22 Jan 2003 00:15:35 GMT
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Viewed:
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1635 times
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In lugnet.technic, Roy Nelson writes:
> Hi all,
>
> I'm trying to control a polarity switch with a motor controlled by an RCX.
> The position of the switch is monitored by a rotational sensor. The problem
> I am having is how far the switch moves on return to the middle 'off'
> position, it tends to move way too far. I've tried slowing down how fast
> the switch moves by various gear/pully combinitions with little success.
>
> Has any done any work on this? Are there any istruction posted on motor
> control of the polarity switch?
>
> Thanks for your help,
> Roy
Take a look at <http://www.brickshelf.com/cgi-bin/gallery.cgi?f=214>.
I controlled it with something similar to Robert Munafo's design
<http://home.earthlink.net/~mrob/pub/lego/stepper.html>.
Cheers,
Hao-yang Wang
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