checks out some 10/15mm railroad tracks for wargaming.
From Tabletop Terrain
ZIP File – $6.50 USD
A collection of 3Dprintable files that build a detailed vehicle. They have been designed to print easily, and to work with 28-32mm scale figures.
This vehicle can be used for systems like Games Workshop's Warhammer 40K and Warhammer 40K: Kill Team, Corvus Belli's Infinity, and many other sci-fi and post-apocalyptic games.