7 Cool Marble Machines Everyone Should See 🟡 Gadgetify
Here is another cool marble machine that puts on a mesmerizing show as you let balls roll through it. This 3D Printed Marble Mountain uses 0.25 inch metal balls. It is made of PLA. It has two lifts and two paths for marbles to go down.
More gadgets like this: here
Starsofthecity is selling this marble model on Etsy.
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