6 model

Free

Scaleable Tree Support Marble Run - Figure 8 Style

Printables

Free

easy to print marble run track!

Printables

Free

Mablevator, Keychain

MyMiniFactory

Free

Wall-Mounted Modular Marble Run – No Screws

Printables

Free

Hilbert Curve Marble Track

Thingiverse

Free

Fully Customizable, 3D Printed Marble Track

Thingiverse