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Hi folks,
I still occasionally get requests for information on my old automatic point
motor. Well, I've long since moved to a more compact and reliable model, and
after the rtlToronto Train3 show last weekend, I've decided to post the
instructions for the new model.
http://www.brickshelf.com/cgi-bin/gallery.cgi?f=10867
This arrangement continuously cycles from one direction to the other - it's up
to the operator to stop the motor when the desired position is reached.
When run from a 6xAA battery box or train regulator, I've had no trouble with
this setup, even on sticky points.
I usually use a polarity switch setup on a single train reg to run each loop,
siding, and point motor in any desired combination.
Note - you'll have to build the mirror-image of the model if you wish to use
the other 'handedness' of point. Not a difficult proposition, I'll leave it as
an exercise to the student :)
Jeff Elliott
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Message has 3 Replies:
 | | Re: Point Motor Instructions
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| (...) What does the lever engage? How easy is it to tell when the turnout is at the right location? I can see the value of building at least a couple of these for our show layout. Our layout had one turnout which was basically impossible to reach (...) (22 years ago, 26-Jan-02, to lugnet.trains)
| | | Re: Point Motor Instructions
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| (...) don't risk damaging the point or the motor. I will get around to DATting one of mine, eventually - though it doesn't make such a cute little shack. Jason J Railton (22 years ago, 27-Jan-02, to lugnet.trains)
| | | Re: Point Motor Instructions
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| (...) Jeff - That looks like a very tight and solid design. I've made some reciprocating designs for point motors, but they all had some slop built into the design that lead to some delay in the switching action. On the outside (I haven't built it (...) (22 years ago, 31-Jan-02, to lugnet.trains)
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