Subject:
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Re: Automatic train switching with RCX
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Newsgroups:
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lugnet.trains
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Date:
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Fri, 11 Jan 2002 16:24:39 GMT
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Viewed:
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526 times
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In lugnet.robotics, Sebastian Wangnick writes:
> Dear all,
>
> we've built an automatic train switching mechanism using the RCX. It detects
> trains using reed contacts (cheap devices sensitive to magnets) and switches
> two points so that the train stops and another one departs instead.
>
> We've tried to use only "usual" parts for the point switches, but obviously
> each of them requires one 9V motor ...
>
> I've spent the night to assemble some instructions on our website. Have a
> look at http://anne.wangnick.bei.t-online.de/sebastian.htm and tell me what
> you think about it.
>
> Eagerly awaiting your responses,
> Sebastian and Hauke Wangnick
I like it - it's quite a simple and neat idea for a project, and best of all
it means you don't have to have the RCX controlling power to the trains.
At some point I'll have to render my point motors though. I use an extra
axle with a bush behind the drive pinion, to keep the rack level and stop
the structure from lifting. I also use elastic bands as a belt drive for
over-run protection - personally I think it's a much safer design. Does the
latest part update for LDraw have some decent gears in it yet?
Jason J Railton
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