7060Re: [z_scale] Pneumatic turnout motors
- Nov 3, 2001Hi Dave,
Those pneumatic turnout machines have been around since the 1950s.
People who use them swear by them. They are quiet and, since they do
not snap like a solenoid, they are much friendlier to the solder joints
in your switch.
The only negative that I have read about them is that you cannot have
more than one switch to control one turnout. This would be a problem
only if you have more than one control panel. That is, if you have a
mainline control panel and a yard panel and need to control the same
turnout from both.
If you need to power route through your switch machine you would have to
make your own electrical contacts but that should not be much of a
With a little work you could even build a little switch stand to
indicate which route the track is aligned to.
If you are building a module or a portable layout you will have to take
along an air compressor with a tank. Without a tank, your air
compressor would need to be chugging all the time.
Another consideration might be the method used to control the turnout.
I think that you need to twist a valve open or closed. Some people
prefer throttles with knobs over push buttons. Others prefer to control
their turnouts using a lever switch instead of a push button. Maybe
turning a valve on and off is not your idea of throwing a switch.
I hope this helps.
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