Spiral Marble Run with Motor (USB)

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4260565.

One more useless Marble Run Machine.

Things that you need:

1. Motor with Gearwheel 15rpm DC 3-5V
2. 2 Pin ON-OFF Switch
3. Any power source like USB charger
4. Some wires
5. (optional) Steel Balls D=10 mm
6. (optional) 2 Pin Connector Male Female

Instead of Steel Balls you can print Marbles on your printer.

<iframe width="560" height="315" src="https://www.youtube.com/embed/YfiTbpwWWzI" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>