I would like to loop an expression-driven animation without using sim (pops or sopsolver), is that possible?

I have attached a file as example and I would like the sphere when reach the last point in the line, go back to the 0 point and repeat the same motion in a loop.

I know how to do that in pops but I am looking for one more procedural way without sim when changes can be made in real time.

It may sounds simple but is tricky for me.

cheers

Why don't you use TimeWrap SOP ?
It's so simple !

Joker386
Why don't you use TimeWrap SOP ?
It's so simple !

it works like a charm, sometimes in the answer is in your tab key. thanks