Subject:
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Re: Making train switch control unit modularized
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Newsgroups:
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lugnet.org.ca.rtltoronto
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Date:
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Mon, 22 Mar 2004 23:19:43 GMT
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Viewed:
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545 times
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In lugnet.org.ca.rtltoronto, David Koudys wrote:
> Since adding motorized switch units to my LEGO track Wyes, I needed to come up
> with a good control unit. My first was 4 switches built into one box.
>
> Then I thought, "Hey! What if I wanted to expand? Add more switches??"
>
> Inspired by rtlToronto robot building competitions, I looked into building
> modular control switches. In this way, I could add on more switches as needed
> (and as I acquire polarity switches--I'm all out!)
>
> So with much further ado, see the "Dave's modular motorized Wye Controlling
> Switches Version 1.0" here
>
> http://sparky.i989.net/lvtrain.htm
>
> On this page are also steps for building the actual motorized wye switch unit as
> well.
>
> Anyway, as per usual, questions, comments or anything else you feel like sending
> in my general direction is quite okay.
Dave - the switch is a neat construction, but I couldn't figure out how the
motor activates the switch. Could you explain?
There is a more compact way of using the polarity switches though. If you poke
the tip of a classic space 4-long antenna into the axle hole, you can operate it
without it latching. You then stretch a rubber band along your line of
switches, passing just in front and behind of the antennae, and they'll all
auto-centre.
Jason Railton
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