Straight track with a Vekoma style track for basic things like a station, blockbrake, brake, or lifthill. Printing straight track can improve these and keep them more uniform.
Use crosstie model for turns, drops, and inversions, using 1.75mm filament as rails, and 4mm tubing for the spine. https://www.thingiverse.com/thing:3334770
Vekoma_Straight_Track.stl | 95.8KB |