Subject:
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Re: Grade Crossing Signal Thingy...
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Newsgroups:
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lugnet.trains
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Date:
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Thu, 16 Dec 2004 23:18:35 GMT
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Viewed:
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1476 times
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In lugnet.trains, Stefan Garcia wrote:
> >
> > For bidirectional operation, you will need two sensors, one for each direction
> > of travel (so the gate has time to go down BEFORE the train hits the crossing!)
>
> Right, I'd think you'd need a lead time of around two baseplates or more, lest
> those poor minifigs wander across the tracks... :^)
In fact for realistic operation (if you really want that!) you'd need 4 sensors,
because the "exit" sensor is much closer to the crossing than the "entry" sensor
in real life. But who wants realistic? This is LEGO!
ROSCO
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Message is in Reply To:
 | | Re: Grade Crossing Signal Thingy...
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| (...) I know Lego doesn't make those sensors. The first post in that thread though is exactly what I was looking for! Thanks! I'm not too crazy about modding Lego so I'll go with the pure version. (...) Right, I'd think you'd need a lead time of (...) (20 years ago, 16-Dec-04, to lugnet.trains)
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