Object Data tab. There you will find a field called Path Animation (Figure
8.3).
Figure 8.3 - Path Animation
Change the Frames option to the amount you want to use for the
animation. If you are using the default animation length with an End in
frame 250, you can repeat the same value in the Frame field. It will use
the entire range of your Timeline.
To break the Follow Path animation, you can select the object following
the curve and press ALT+P. Choose the "Clear Parent" option, and the
object stops following the curve.
Tip: Be careful not to create a Circle from the Mesh group instead of the
Curve. The Circle from the Mesh group doesn't support the Follow Path
animation.
8.2 Creating animation loops