About this 3D model

This is a new extension for Gravitrax, well I haven't seen it so far although its quite simple. What you also need: Neodym Supermagnet ⌀ 10 x 5 mm Marbles 1.75mm filament as pin for the joint Simply assemble the parts as shown in the video, though in this version, you only need some 1.75mm filament to use as the pin for the hinge.