HELP! Particle loop through tunnel with TyLooper?

[ADN]

I attached the file by private message.

We really just need the particles to follow the path without leaving the tube.

We have tried with TyLooper and with various events, and something always fails us.

Let's see if you could guide us a little.

Really we only need the physics for the collision between particles. Collision with the tube is not necessary as long as the path is followed.

I think it should be simpler than how we have created them.

Thank you very much.