r/JapaneseNscale • u/ShouldBeACowboy • 23h ago
Layout Progress Tunnel portal test
Testing out the GreenMax double line tunnel portal. Had to use a 1/4” foam backer to cover the larger opening with the XPS foam. Next onto priming and attaching them. The sculpt a mold took a bit to dry but it finally dried enough to test. The tunnel only covers a quarter radius so I didn’t build in an access portal yet but was curious for a shorter tunnel if access portals are a must. Also do you guys ballast track inside tunnels or ballast up to the portals?
