Subject:
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Re: A LEGO double-throw switch?
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 22 Aug 2005 21:38:17 GMT
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Original-From:
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Kyle McDonald <Kyle.McDonald@Sun.!avoidspam!COM>
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Viewed:
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1164 times
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Steve Hassenplug wrote:
> When the switches are in the same position, the belt will not move. When in
> opposite positions, it will run (some direction)
>
> Two problems:
> 1) Half the time, the motor will run backwards (can be fixed using diodes)
>
>
Since turning the 9V wire connectors 90 degrees reverse the polarity,
can't you play with how the wires are connected to the switches to
re-reverse the polarity on one wire?
> 2) The "dead" zone where a crate can turn "off" switch 2, but not move it all the
> way to the "reverse" direction.
-Kyle
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Message has 1 Reply:
 | | Re: A LEGO double-throw switch?
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| (...) No, because it's only wrong half the time. HOWEVER, now that I think about it, you could mechanically connect two polarity switches together at the end with the motor. Then, instead of connecting one wire from each of the polarity switches to (...) (19 years ago, 22-Aug-05, to lugnet.robotics)
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Message is in Reply To:
| | Re: A LEGO double-throw switch?
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| (...) Ok, Here's a partial solution (assuming you don't want to mechanically link the ends together). Given: Polarity Switch 1 - rotated forward by Forklift Polarity Switch 2 - rotated forward by crate when it arrives at the end Motor - located by (...) (19 years ago, 22-Aug-05, to lugnet.robotics)
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