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2 track tunnel - for R4-R5 radius curves

SKU: 1061.R45.L80
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H0 scale reproduction (1:87) of an internal tunnel for double track railway lines suitable for the pair of curves with radius R4-R5 (internal radius of 543 mm and external radius of 605 mm) with distance between tracks of 62 mm. It is possible to use radius of similar curves with a tolerance of approximately 10%.
It is to be combined with the corresponding gantry for R4-R5 curves (initial code 1060.R45).

Each tunnel is 8 cm long and it is possible to extend it with other elements of the same type.
It makes no difference whether it curves left or right and is suitable for both lines with and without catenary.

It is equipped with an upper hole to facilitate the insertion of a possible anchoring system for the overhead line.

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

Finishing of bioPLA tunnels

Tunnel H0 finish
The tunnel is supplied in a single piece, it does not require assembly. It can be assembled to the portal or to other items of the same type. Use cyanoacrylate glue for fast and resistant fixing.

Surface preparation
Give it a light sanding with 180/240 grit sandpaper and possibly a second pass with a finer grit. With the piece clean and dry, you can use a spray putty to even out the surface and eliminate streaks from the print.
Alternatively, a light layer of plaster and vinyl glue can be applied to the inside of the tunnel. To be sanded once dry.

Painting can be done with opaque acrylic colours. A dark gray color is recommended.
Subsequent passes can be carried out with various highlighting techniques to highlight flows of water and moss in order to dirty and make the painting less uniform.

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