Animated arrow particle not following curve path

Support Particles and Physics Simulations
1

Hi,
I’m currently trying Force Field + Curve Guide, an arrow as a particle and a 3D Bezier curve as a path. The Dynamic Rotation is enabled. Mean radius of the curve is 0.
I followed this video https://www.youtube.com/watch?v=O0Zfjdf21X0&list=PLVxOhKOaKOC7ZpjtFQEyjzOukvhXoV0U4&index=1.

The problem is, the arrow does not follow the curve. From time to time it has random direction. On the picture you can see first three arrows from the left that they are OK. Another two arrows are rotated.

Any idea where the problem could be?

I’m also working with a simple Follow Path constraint as an alternative, but FF+CG seems like a more appropriate tool to me.

HB

FF_Curve_guide_Particles_Not oriented
FF_Curve_guide_Particles_Not oriented1312×680 57.7 KB

2

can be different reasons. Best would be, if you provide a blend file

3

I figured it out myself and that’s why I’ll answer.
The problem was in the Bézier curve. I drew it quite freely and therefore the particles also moved quite freely.
Subsequently, I drew curves always with one constant axis (usually the z axis, Numpad 7). When I needed to move a point on the curve along the x or y axis, I also set the third axis constant (Numpad 1,3).
It also helps to reduce the size of the emitter and have a 90° angle between the emitter and the curve.