The turnout appears to be very conventional but there are small differences in construction. On my turnout I decided to piece the turnout together rather than build it and then cut isolating gaps in the rails. The frog rails and closure rails are separate pieces of raiL The frog point and "wing" rails that make up the frog are also separate parts, but form a subassembly that should be isolated from the rest of the turnout electrically.
Turnout Parts |
I used the fixture I had made previously to hold the various parts together while I made things up. The file and a rubber band function as a clamp to keep thing together...
Assembly Fixture and Clamp |
Rather than worry about angles and such I just filed by a guestimated length and then folded the rail to create the frog points. I made the points and stockrails using a double sided homemade fixture for filing...
Filing Fixture |
Closure Rail Jig |
While the glue on the throwbar was setting I went on with the rest of the turnout. I assembled the frog and glued it in place. The stock rails were then placed using the level/gauge to space them properly. The frog rails were then lined up with the frog and gauged to the stock rails....
Frog and Rails |
Sans Points |
The last part of the assembly was installing the closure rails. This subassembly is actually fed up though the turnout from the bottom. I leave the long ties at the throwbar off to make room for this. Once the closure rails are through I line them up with the frog and add glue to a number of ties to fasten the rails down. I do not put any glue on the ties closest to the draw bar (about 8 ties). This part of the rail needs to be loose to allow the points to move. I then glue up the long ties on either side of the throw bar...
"Finished" Turnout |
The rail I use is from Atlas code 55 flex track. I just pull the tiestrip off of the numerous "cut-offs" I have around.
This turnout is a prototype and as such was a test bed for construction, adhesives and materials. The rest of the turnouts will be handled a bit different. Fortunately I designed the Average Eastern to use a "standard" #7 turnout. The parts for both left and right hand turnouts are the same. Any curves are formed at assembly time. Closure rails, guard rails and points can be made in batches. The longer rail can be a bit oversize and trimmed to the proper length at assembly.
I'm currently building a jig using .015 thick x .060 wide plastic strips that will allow me to layout the ties for turnouts without the tedium of gluing one at a time. I'm going to go with Pliobond for the adhesive. Pliobond can be applied to the bottom of the rail and allowed to cure ahead of time. The glue can be reactivated at assembly by heating the rail.
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