Modeling the Hill City grain elevator: Pt. I
This cast plaster pit (above) was made using the two-part styrene mold shown on page 49. The auger sits inside the pit and rests on a floor made of styrene. Note that the pit has two levels. The elevator tower is made up of two sections (below), each with three bins. Scribed siding was used to model the cribbed walls and the floors that separate the two sections.
the roofs and gable ends were assem- bled and attached to the head house. The Campbell corrugated aluminum for the model was cut lengthwise (across the corrugations) using a NorthWest Short Line Duplicutter and many single edge razor blades. One edge of the cross-cut was smoother than the other. The rougher edge was overlapped by the upper course as the metal was applied, starting at the bot- tom, thus keeping the factory edge ex- posed. Widthwise cuts (with the corru- gations) did not present this problem. Tesa ¹₂″ double-sided tape, purchased at an automotive paint and supplies store,
attached the metal to the styrene; five minute epoxy accom-
This basswood jig (above) was made to aid in the construction of the head house. The locations for the framework pieces were drawn on a sheet of basswood. (Note the studs and window marked out on the jig beneath the tweezers.) Strip- wood was glued on each side of the mark- ings to hold the styrene studs in place as the wall was assembled. This view (below) shows the assembled styrene head house walls and the removeable roof.
Head house Components requiring a jig were
drawn to scale on ³₃₂″×3″ basswood sheet. To construct a long stud wall for the head house, a ¹₁₆″×¹₁₆″ square stop was glued to the basswood at the loca- tion for a corner stud, using a machin- ist’s square to insure that the strip- wood was perpendicular. Then, again using the square, a 2″×6″ styrene stud was centered on the line denoting a stud’s location, 2″×6″ stripwood was glued to the sheet bass on either side of the stud, and the square moved along the drawing until all stripwood was in place. Then ¹₁₆″×¹₈″ stops, supporting the top and bottom plates, were added. On the trackside end of the head house there are double doors. These doors allowed equipment to be hoisted and maneuvered into the building through the opening. The opening for the doors on the model can be seen in the photo on the bottom of page 52. Once the head house was completed,
52 AUGUST 2012
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