Subject:
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Re: Working brakes for Lego trains
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Newsgroups:
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lugnet.trains
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Date:
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Tue, 30 Jan 2001 00:26:42 GMT
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Viewed:
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981 times
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> Ah. Very neat. But, do you have a way of triggering it automatically if
> the train starts to run away down a slope?
Didn't need to, like retainers on a real train, the whole thing was set into
action before hand. I suppose, one could use a rcx with the rotation sensor to
sense the speed of the train, and apply the brakes in proportion to the speed
of the train. I don't think it would work all that well though, because of the
size of the RCX (set up for 6-8 wide, not 8-10 wide). But, hey, the idea is
now out there, someone will have a play I am sure. One of the things I would
recommend is to ballast the brake van with some weight. I use pennies, because
they are cheap and available.
(suggestion for sensor is to build it into the snowplow arrangement, perhaps
sped up to give a more accurate reading)
James
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