2009

The endpoints now coincide.
13 Drag the time slider again.
The particle path remains similar to that of the Helix for the entire
duration of the animation. With other setups, you might need to use
different values for Influence %, and for paths with tight twists and turns,
you might need to increase Accel Limit as well.
You might be wondering why you didn't simply replace the default Speed
operator with the Speed By Icon operator. To see why not, try this:
14 Go to frame 100, open Particle View, and click the Speed 01 operator's
icon to turn it off. Play the animation.
The entire particle path is offset from the Helix, so it's difficult to tell
how closely it follows the latter's curves.
15 Try adjusting the Speed By Icon's Accel Limit and Influence % setting to
get the particles to follow the helical path more closely.
It's not easy. You get more reliable results using the Speed operator to set
the initial speed, and then Speed By Icon to set the particle path.
Particle Flow | 2881