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I need help animating a train around a track.

I am making a PLTW Train in Onshape and need help running it around the track. Here is a link. https://cad.onshape.com/documents/c1426e6a74739e5b840fefd2/w/9a6a503e33f9812ef61f2123/e/1c575ea47a3320ad676b4b75
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Answers
When I animate parts along a path, I usually try to constrain the part to a single surface with no breaks (An example is posted here). This makes it easier, but may not have the distance per revolution you are looking for.