Spiral Marble Run 02

This time the number of spirals is increased to 4, and 90% of the rubber band's power can be used. Spiral Marble Run 01：https://makerworld.com/en/models/878520Boost 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.