Marble run

This marble features a wheel which acts as the lift to bring the marble up. Though the track is quite simple, there is actually a few slopes before the u-turn. Therefore, this design is fascinating to watch and print. Hope you like it. This design also requires a motor, please purchase one here:Motor: https://e.tb.cn/h.Tnhz1NarBQxspNt?tk=KuGIeUZ1J3N