mini marble machine: track #2

This is my mini marble machine. This thing is meant to be a desk toy. It has the ability to change out the run but as the release I don't have any more runs more runs are coming very soon.

watch the video: https://youtu.be/69QzGpryMXY

things your need:
ball: I'm using 4.6mm diameter steel BB (you need at least 4 of the BB)

Instagram: https://www.instagram.com/tabletop_robotics/
thingIverse: https://www.thingiverse.com/Tabletop_Robotics/about
google site: https://sites.google.com/view/tabletop-robotics