Gravitrax compatible spiral staircase

thingiverse

This thing is a modular, stackable spiral staircase designed specifically for use with the Gravitrax marble-run system. When printed and placed along your track, it allows the marble to travel downwards bouncing on each step with a very satisfying sound. The staircase is engineered to be inserted into a basic tile at the bottom and hooked to any "rail-receiving" tile on top. The smallest possible setup is achieved by simply connecting the bottom and top parts, resulting in a 1cm-down 60 degree turn. Each module lowers the marble 1cm and turns it 120 degrees clockwise. Photos show examples of a 7cm and 4cm staircase. Check out the videos in the "Post-Printing" section to see it in action: https://youtu.be/Ysgy85aRfzc! If you make this, it would be awesome to see your creations! **Note:** I am not affiliated with Ravensburger or Gravitrax; this design is compatible with their system and provides functionality the stock parts do not. I create these projects just for fun, but if my designs enhance your Gravitrax experience, consider tipping me - it would be greatly appreciated!