Marble Machine Modified Hilbert Curve

Marble Machine Modified Hilbert Curve

http://www.thingiverse.com/thing:987441
Spiral Marble Machine by tedkeys.

http://www.thingiverse.com/thing:853711
Marble Run Hilbert Curve by tedkeys.

Marble Run was modified to use the modular connection
to the gear box for the Spiral Machine.
Required a little sanding of the starting slope.
I am not a CAD expert, but it does work.