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2-track portal for wide curves - Scale N

€9,00
SKU: 1260.R67.M
Select Finish

N scale reproduction (1:160) of a tunnel portal for double track railway lines suitable for the pair of wide curves with radius R6-R7 (internal radius of 396 mm and external radius of 430 mm) with standard distance between tracks of 33.6 mm. It is possible to use radii of similar curves with a tolerance of approximately 10%.
Portal entrance widened to allow circulation even for longer carriages. Suitable for both lines with and without catenary.

3D printed with FDM technology in ecological dark gray PLA material, it is supplied to be painted.

Possibility of choosing between a brick or stone cladding.

The product is designed to be combined with the tunnel code 1261.R67.R15 for straights and the respective accessories such as the side containment walls code 1263.

Finishing of bioPLA portals

Assembly
The portal is supplied in a single piece, it does not require assembly. When assembling to other related items, use cyanoacrylate glue for a quick and resistant fixing.

Surface preparation
Remove any surface burrs and lightly sand with 180/240 grit sandpaper and possibly a second pass with a finer grit. With the piece clean and dry, it is recommended to use a spray putty to even out the surface and eliminate print streaks. Make several light, quick passes until you are satisfied with the uniformity of the surface. Be careful not to overdo it so as not to lose the details of the surface texture. Alternatively, you can also use liquid chalk or thick paint applied in several coats.

Painting
Subsequent painting can be done with opaque acrylic colours.
I recommend using at least two basic colors to bring out the three-dimensionality of the surface: one for the bricks/stones and the other to use between the interstices of the same.
There are two techniques that can be used:
1. Apply a first coat of uniform and covering color with the color you want to obtain in the raised parts (bricks or stones). When dry, apply the second very diluted color (the one you want to obtain between the gaps) and dab with a sponge or absorbent paper only on the raised surface to remove excess colour. Give more passes until you are satisfied.
2. Apply a first coat of diluted color (whatever you want to obtain between the gaps).
When dry, apply the second color by dabbing very lightly on the raised surface with a sponge. Give more passes until you are satisfied.
Subsequently, other colors can be given with the dry brush technique or with spotting powders to give the product a more lived-in and less uniform appearance.

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