Scale: 1/87 (H0)Printing technique: resin print / optional FDMDesign: portal Weilburg Southyou can see the real object here:https://commons.wikimedia.org/wiki/File:Weilburg_-Tunnelensemble_S%C3%BCdseite%28004%29.JPGModel size (main portal): X:188,6 Y:61 Z:159Additional wall: X: 46 Y:73 Z: 57Printer (minimal printing area): Photon Mono XNote: The print files do not contain supports, which should only be added only inside the tunelThere is no need to add supports outside the tunnel interior, neither in the resin option nor in the FDM option.Note: the distance of the tracks on a double-track line is scaled differently than in reality due to sharper curves. One way to run two tracks in the portal model may be to set the portal slightly higher than the tracks. In the case of FDM printing, you can easily rescale the portal model. In case of resin printing, you can rescale model, but you will need larger printer then Mono X (eg. Photon M3 max).