Watch GoJak motion test video.
A 1/24th scale version of a set of car dollies and rack. The dollies are fully functional with rolling wheels, spinning casters that they roll together with a articulated stop. They are inspired by a GoJak 6200. These are functional upon printing and move very easily.
These are plastic printed into a wax suspension, so, a little care in first getting them moving might be necessary. They have been printed so it should not be necessary.