Modeling State Line Interchange Yard & Rising Junction part 9 - Structures

Roundhouse floor

The roundhouse baseplate made with masonite in part 8  has been covered with .040" styrene, the roundhouse floor surface now being the same material that building will be modeled with making it easier to glue all of the individual structure pieces to the floor with a styrene cement. The styrene was glued to the Masonite with ACC.

The styrene floor was not made one piece, there are four larger full length pieces, one of each located on ether side of the inspection pits with a smaller filler piece at the back end of each pit at the rear of the roundhouse. 

A styrene jig cut to the full pit length of and width between the rails was made to hold the rails in gauge when gluing the rails to the masonite baseplate on ether side of the inspection pits. Once the rails were in place the jig was cut into three pieces to be used as filler pieces at the front of the inspection pits at the roundhouse entrance.

The rails are cut .375" longer that the inspection pits, this leaves an open slot for the rails of the lead tracks from the turntable to slip into so the rail joints are inside the building and not at the hard transition between the roundhouse floor and the outside ground.

Before the rails were glued inplace a power feed wire was soldered to the rear end of each rail, the wires are taped between the rails to keep them out of the way until the structure is finally located into the layout.

Baseplates for the roof support posts were glued in place at this step, they may be hard to see in the below photo. Each plate has a .030" hole drilled into the center of the plate, these holes will later accept a corresponding pin affixed in the center of each support post to locate them during assembly. 

Next step will be to make the roundhouse sides and ends.