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--- Building a N Scale Turnout Tester --- Servo for Turnout Control ---
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(02-17-20) I had built 41 turnouts for the layout at this point and was getting ready to start laying track. I wanted to have a way to test the turnouts I'd built prior to installing them on the layout so came up with the following fixture to do that.
It only took a couple hours to build and didn't cost much as I had the materials left over from other projects. I built this for N scale turnouts but no reason one couldn't be built for any scale turnouts. I'll pretty much let the pictures do the talking.
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The saw was raised in order to cut the channels.
You want the channels just deep enough for a wire to lay in that will control the points.
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I found that 1/16” (.060) aluminum or sheet metal was thin enough that it wouldn't contact the engine or car wheels on the outside of the rails. I had scrap from both but like working in aluminum so went with that but....
. you could also make the brackets (tabs) with sheet metal and cut either with tin snips. I have a metal bandsaw so used it.
I also have a belt sander so it was used to quickly finish the tabs off. One could easily use a file.
A hole was drilled in the tab for a screw to be used to hold it down on the fixture.
Loosen the screw a turn or two and you can swivel the tab out of the way.
Swivel the tab back and tighen the screw. Mounting the turnout takes less than a minute.
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Slide some track sections onto the turnout ends, install the throwbar control wire and clamp the turnout down and you are ready to test it.
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Most of the time just holding the throwbar control wires with my fingers worked fine but if there was a problem with the turnout it helped to get down where I could really study where the problem was as the loco and car went through the turnout. I added the two screws shown above with the washers for those times. Just loosen the screw a bit and put the wire under the washer. Move the control wires where you need them to be and tighten the screw. A couple seconds is all that is required.
Link to how I wire the turnout so that I only need to connect the power pack to one set of rails can be found ( HERE ).
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Link to how I wire the turnout so that I only need to connect the power pack to one set of rails can be found ( HERE ).
Link to YouTube video is ( HERE ).
I'm happy that I made this. Only took a couple hours and you can have a turnout mounted in the fixture ready to test it in a few minutes.
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