Subject:
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Re: Motorized Railroad Crossing Lift-Gate Plans
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Newsgroups:
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lugnet.trains
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Date:
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Sun, 25 Feb 2001 17:11:19 GMT
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Viewed:
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1747 times
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In lugnet.trains, Brad Hamilton writes:
> I've been trying to build a dual one (i.e. a gate on each side of the
> rails), but I keep having trouble keeping the sides in synch.
>
> If I use two motors, they seem to turn at slightly different rates so the
> gates don't line up after a while.
>
> I tried to use one motor with an axel going under the tracks to drive the
> other gate, but the gearing leading to the second gate uses up a bit of
> travel so the second gate always lags behind the first and can't travel far
> enough.
What I did on my lift bridge was used two motors but slaved them together
with a geartrain and axle. That way they had to stay in synch but I wasn't
asking one motor to keep both sides synched.
++Lar
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Message is in Reply To:
 | | Re: Motorized Railroad Crossing Lift-Gate Plans
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| I've been trying to build a dual one (i.e. a gate on each side of the rails), but I keep having trouble keeping the sides in synch. If I use two motors, they seem to turn at slightly different rates so the gates don't line up after a while. I tried (...) (26 years ago, 25-Feb-01, to lugnet.trains)
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