A Brio compatible roller coaster.

I designed it as an experiment to see how a 3D printed truss could work without needing support. It should be strong like a truss, although it uses more material due to maintaining a 45° angle.

The picture is it printed with ABS, but it should work with PLA.

Note: I made the file in inches, so it may show up very small if your program assumes incoming .stl files are in millimeters. Scale up by 2540% to get correct dimensions in millimeters.