Finescale NZR
Discussion of any topic relating to more accurate modelling of NZ railways in any scale. No rivet left uncounted!
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Rewanui structures
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Rewanui structures
I occasionally get motivated to make a bit of a push on the stationmaster’s house at Rewanui.
The drawings suggest 8″ or 9″ bevel back weatherboard cladding, but a Colin Barry photo clearly shows rusticated shiplap was used. Counting boards suggests that this had a ‘repeat’ of around 6″ (although the boards would have been wider including the cover).
How to model it? Scribed styrene sheet would be OK, except that the available V-groove doesn’t look all that much like the real thing. In any case scribed sheet is extremely regular, whereas individual boards display a more realistic hint of irregularity. I’ve profiled boards by scrawking in the past. It works very well, but forming the tool is the tricky bit.
The ship lap section has a circular portion removed (at least the visible bit for modelling purposes). So I 3D printed some tiny planes to shape the 0.100″ x 0.020″ styrene planks (actually 0.015″ planks for the test bits until I can get down to the model shop). The model dimensions are a bit of a fudge to achieve the 20% scallop width on the ~6″ board. Not quite right, but pretty close. The result of the test run, primed quickly for some contrast, is shown. The cutting edge for the plane is a 1mm SS dowel pin with a ground edge, but could readily be a length of drill shank. This is easily and accurately fitted via a blind hole in the 3D printed body. The hole is relatively deep and holds the cutter sufficiently rigidly and at a fixed depth.
The channel in the plane is a nice sliding fit for the 0.100″ styrene strip. I place the strip to be planed on top of a piece of 0.100″ square section, place the plane over the top and drag it along the length once or twice to form the profile. Very quick and easy.
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This discussion was modified 4 months, 3 weeks ago by
Lawrence.
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This discussion was modified 4 months, 3 weeks ago by
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4 Replies
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This is what irregular rusticated weatherboard looks like….
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Measurements of the visible bit of a fairly typical rusticated weatherboard on the side of a building that used to stand at the top end of Cuba Street in Wellington, before traffic sewer rearrangements.
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I’m fairly sure the Rewanui buildings use smaller boards. The drawings call for 8 or 9″ bevel back with 1.5″ lap. Clearly not bevel back, so the size possibly isn’t relevant either, but 8″ with 1.5″ lap seems to be about right for the shiplap based on board counting. You can still buy shiplap more or less to these dimensions too (again the direct relevance of that is doubtful).
I think (from online sources) that the attached GR sign is 355mm high (14″). In which case 8″ boards with 1.5″ lap seems reasonable. This is the station, not the house, but not unreasonable to assume similar cladding, and photos are consistent with that.
So 6.5″ visible which is 2.6mm more or less. Using 0.100″/2.54mm strip is close enough for me!
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Yeah. Rusticated came in a wide range of sizes; much more so than plain lap weatherboards. The sketch is just one example within the more common part of the size range. It’s a guide to typical proportions, not a standard – there wasn’t really such a thing.
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