Subject:
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Re: GMLTC Update
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Newsgroups:
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lugnet.trains
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Date:
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Mon, 22 Jul 2002 19:04:17 GMT
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Viewed:
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2455 times
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In lugnet.trains, Larry Pieniazek writes:
> In lugnet.trains, John Gerlach writes:
> > In lugnet.trains, John Kelly III writes:
> > > James-
> > >
> > > Mr. Gerlach is quite clever. He has the loop powered in three sections with
> > > light sensors to grab the trolley location for the RCX. It was working
> > > alright at the Roundhouse, but it had some trouble in the direct light of
> > > the Fargo show. The light sensors were just overwhelmed.
> >
> >
> > I need to invest in some reed sensors to detect the magnets as they go by,
> > the light sensors are just too unreliable under the different lighting
> > conditions. Anyone know a good place to purchase some RCX-compatible reed
> > sensors?
>
> John Barnes/HiTechnic? He was showing off a lot of his wares at BF.
>
> http://www.hitechnic.com/
>
> Note that his "train sensor" is a light sensor, basically, but set to point
> directly up so that train shadow activates it. It's only a plate and a tile
> high though.
>
> Also Chris Phillips has made a number of these for NELUG...
There could be a problem using these on that return loop. It's all curves,
and this sensor looks like it has a rectangular 2x4 plate between the
sleepers so it'll only fit on straights. Perhaps there's time for a quick
design change John?
Jason J Railton
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Message has 2 Replies:
 | | Re: GMLTC Update
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| (...) Unfortunately, due to the way the GMLTC builds modules, there really isn't such a thing as a "quick design change" on our layout... I was looking at some small reed switches at a surplus store this past weekend, I might splurge (around a (...) (24 years ago, 22-Jul-02, to lugnet.trains)
| | | Re: GMLTC Update
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| The other part that pains me is the scrape the brick. I'm thinking that since we're building down 20-30 some bricks we can find a way to do this without needing to alter bricks. Haven't thought it all the way through, but for me that would need to (...) (24 years ago, 22-Jul-02, to lugnet.trains)
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Message is in Reply To:
| | Re: GMLTC Update
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| (...) John Barnes/HiTechnic? He was showing off a lot of his wares at BF. (URL) that his "train sensor" is a light sensor, basically, but set to point directly up so that train shadow activates it. It's only a plate and a tile high though. Also (...) (24 years ago, 22-Jul-02, to lugnet.trains)
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