Duplo train elevation piece

Brick duplo compatible elevation piece that can be used to make spirals (with the curved tracks) or just straight bridges (with straight tracks). Each piece increases the height by exactly one duplo brick height per track, so it's easy to build the supporting towers. 12 pieces makes a full circle, which becomes very stable. I used generic PLA. Anything should work, but recommend doing a test print with one first to make sure the standard bricks clutch well, otherwise may need to tune printer