I Have been using blender to make/modify objects for 3D printing and now I thought I would try some animation.

I am trying to start the camera moving along a path starting at frame 40. From frame 1 to 40 it moves via key frames with loc. Starting at frame 40 I would like the camera to follow a circle path for a couple of iterations.

How do start / stop the influence of the path at specific frames.

I in my googling have seen mention of a start/stop but I am not seeing in properties/constraints. I see noting to control the constraint in the dope sheet or the NLA editor. (Which I just discovered)

  • 1
    $\begingroup$ You can animate the influence slider at the bottom of the constraint.. (hover over it and press I to insert keyframes). Is that what you want? $\endgroup$
    – gandalf3
    Sep 2, 2014 at 5:42
  • $\begingroup$ Ok, that helps. Now where does/should that gem exist in the wiki? I see the influence animating but the camera does not move sigh. $\endgroup$
    – Frobbit
    Sep 2, 2014 at 6:28
  • $\begingroup$ There are so many reasons that might happen.. Here's a .blend with it working: pasteall.org/blend/31333 As for the wiki, see the many pages on animation: wiki.blender.org/index.php/Doc:2.6/Manual/Animation $\endgroup$
    – gandalf3
    Sep 2, 2014 at 6:35
  • $\begingroup$ The reason was too much experimenting... I fixed it by removing and adding a new camera. Now how do I actually delete the old messy camera from the blend file?, do not answer here... I will ask a new Q if I cannot figure it out. $\endgroup$
    – Frobbit
    Sep 2, 2014 at 8:26

1 Answer 1


This can be done by animating the influence slider at the bottom the the constraint.

Most interface elements in blender can be keyframed by pressing I while hovering over them.

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