Marble Course

A marble course for your regular type marbles. Supports are needed, but shouldn't be very hard to remove. This is fully designed in Tinkercad. Comes with 3 printable marble sizes. (separate files). It features a spiral and a small tunnel in the course. If the marble doesn't fit, either scale it up or use a smaller ball. It also has two slots to hold your marbles, and yes this model is signed. 

As of 11/15 I have uploaded a V2, Marble Course V2.