Duplo Track Flex (vertical)

Inspired by the flexible (horizontal) rail and the fact that my son wanted to use his slide as a train track, I designed this vertical flex track. Unfortunately I didn't find a way to print the rail without a support, because otherwise the stability would be lost.

I printed the track at a 45 degree angle. This is I think optimal in terms of support and stability.

I am happy about comments and one or the other make.