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Unlike my previous two switches, I decided to build this one in situ as its geometry is critical. Viewed: 348 times.
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I decided to extend the ties from the new track all the way to the existing main line so that when I rebuild the grade crossing, the entire thing will be supported and will move as a single piece. Viewed: 265 times.
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The outer rails of the wye are temporary in place to check the geometry. Viewed: 256 times.
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At that point, one of the inner rail still needs to be cut. Keeping it long made it easy to check the alignement. Viewed: 213 times.
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The blade is in place! It is made of a flat steel strap used by carpenters for connecting beams together. There is a steel tip welded at the end to act as a thin point (while a rail could be filed down to the right shape, the aluminum would not be very robust). The pivot is made of a half inch diameter steel rod welded to the bottom of the plate and resting into an oversize tie. Viewed: 250 times.
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This picture and the next show the two positions of the blade. It does not close completely yet: the base plate needs to be ground some more. Viewed: 303 times.
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DSC00467.JPG Viewed: 255 times.
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The rail is held in place by a "few" screws... Viewed: 244 times.
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The two diverging rails are held in place by screws holding them to a steel strap bent at a right angle and attached to the oversize tie. Viewed: 295 times.
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DSC00470.JPG Viewed: 281 times.
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The two grey plastic strips seen across the tracks have grooves machined in them to keep the rails in gauge. Viewed: 290 times.
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