Entry posted by Ian Smith
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Following on from the previous entries on the construction of a Signal Box for Modbury, the next stage was to build the Chimney stack and the supporting ground floor wall. This was to be a brick construction, so a solid core of laminated plastic sheet was welded together and when dry cut and shaded to size to take into account the thickness of the embossed brick sheet which was to for the cladding. After the embossed brick sheet had dried, the decorative string courses near the top of the stack were added from 0.010" strips.
The complete Chimney assembly was then added to the rear of the locking room.
An area of 0.030" plastic sheet was then marked out for the 'box upper, and the planking detail "scrawked" on before the ends and sides were cut out. The window reveals were carefully cut, pared and filed out before fitting the window sills from oversized pieces of 0.015". Once the sills were properly dry they were filed/sanded back against a "stop" so that the stood proud of the planking a constant amount.
The upper walls were then added around the base, ensuring that the framing added atop the stone walls was proud of the upper storey by about 0.010" all round. Strips of 0.010" were then added around the wall corners and around the window and door reveals to represent the frames thereof.
A roof was made from 0.015" sheet, the rear section receiving a cut out to fit around the chimney stack, and a pair of gussets cut and placed immediately inboard of the end walls to ensure that the roof was an interference fit (I want to have the roof removable).
The bargeboards at the gable ends of the roof were cut and fitted from 0.020" for strength before setting the roof aside while continuing with further detail of the 'box ends by adding the vents.
Finally, for now, the vents were added in the ends. Firstly holes were drilled, cut and filed in the ends about 4mm x 2mm. A piece of 0.020" plastic was then closely "scrawked" to represent the vent louvres, and strips from this area of the sheet cut out so that some 0.010"x0.040" strip was added on edge around the embryonic vent to represent the vent framing.
The completed vents were then secured within the holes made in the ends such that the vent frame stood a little proud of the surrounding planking.
That's the state of play for now. The next task is to make the steps and associated handrails - I will initially make these from plastic strip, with a view to potentially having to re-make as a soldered construction of metalwork if they prove to be to delicate!
Ian
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