This is Montana Infinitum at La Feria Chapultepec Magico in Mexico City, Mexico (formerly Magnum Force at Flamingo Land in Malton, England), from NoLimits Roller Coaster Simulation (it's called 3er Looping in the game). It was the world's first roller coaster with 3 vertical loops. This track comes with the game. I did not make this model and I haven't printed it.To find out how to export tracks from NoLimits to .stl, look at my post on http://forum.themeparkstudio.com/index.php?topic=108.0