Define a Curve marker (see documentation on 'Markers on Curves'). A constraint between this marker and your part so they move together (spherical is usually what you want).
Then create a body motion which uses the B1 (x-axis) of the curve marker (the x-axis will always point tangentially to the curve).
Define a Curve marker (see documentation on 'Markers on Curves'). A constraint between this marker and your part so they move together (spherical is usually what you want).
Then create a body motion which uses the B1 (x-axis) of the curve marker (the x-axis will always point tangentially to the curve).
