Spiral Marble Run 01

This time I designed a unique marble run. It does not require hardware parts, but only a rubber band. Combined with the elasticity of the rubber band, the marbles have “rocket-like” speed. This is the first version. When the maximum pulling force is reached, the energy of the marbles is not completely consumed. The second generation and more advanced versions will be launched later. Please continue to pay attention.Boost MeThank you for your support！Description：Suitable for 14mm diameter bambu standard marbles.（ZB001）No hardware required, just a rubber band.The diameter of the rubber band should not be too large, 4-6 cm is enough.The supports have been manually set in the 3mf file. Try not to change them. If you accidentally set them to automatic supports, the supports at the rightmost turning track will be difficult to remove.Two silicone stickers with a diameter of 10mm and a thickness of 2mm can be pasted on two opposite places so that the ball can roll smoothly into the starting po