Modeling State Line Interchange Yard & Rising Junction part 11 - Structures

Roundhouse roof supports

The blank left exterior wall will not be seen once the structure is in place on the layout. The interior side of the same wall will be inclosed as part of the shop/boiler room and also not be seen on the completed model, this makes a good surface plate for a jig to assemble the floor to roof supports.

The styrene blocks glued to the interior wall below will locate the prototypical 10"x10" vertical support posts while gluing the roof joists in place completing the assembly. 

It is worth mentioning that the set of plans acquired from UCONN have a separate roof support plan that would allow a model to be built exactly complex as the prototype. This would not be seen on the completed model, so the much simplified support below will be adequate. 

The vertical supports have a hole drilled into the center of to bottom of each post to glue in a .025" diameter locating pin, see below.

These pins will exactly locate the roof supports to the floor when inserted into the base plates glued on the floor in part 9 as below.  The posts are now free standing but removable for painting before final assembly.

 

Painting the all the structure components to this point and assembly will be next.