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But don't go too deep
5 inches tall
Double-wide tunnel opening cross-section dimensions: 5
4 inches wide (1
Double-wide Tunnel for HO Scale Train Model Trains But don't go too deepA simple 3D printed plastic tunnel for an HO scale train track. Variations: Straight variations are straight, and their length is the listed number. The curved variations list the degrees of a circle they cover, and the radius is the radius of the curved track. For example, '15" radius, 30 degrees' means that each piece covers 30 degrees of a circle, meaning that 3 of them make a 90 degree turn. The radius of the circle that would be made by these
