1
$\begingroup$

I saw a video of unusual mechanisms, and I'm trying to replicate a section of the animation. In the animation video from 00:15sec it has 2 mechanical gears with the teeth perfectly inter combined when they rotate. By my animating gears(teeth) collide when they rotate. I'd like some information, which method to get it correctly animated.

https://www.youtube.com/watch?v=s91uk2CEkZE

enter image description here

My ones start off good, but as it rotates its obvious the teeth collide.

enter image description here enter image description here

I have included the Blender file with the animation.

Improve this question
$\endgroup$

1 Answer 1

Reset to default
2
$\begingroup$
  1. delete all animations except the animation of the circle.
  2. delete the copy rotation constraint
  3. on frame 1 move the gears like this

enter image description here

then i -> rotation (add rotation keyframe)

  1. then move to frame 2 and adapt the rotation of that right gear manually
  2. add rotation keyframe again
  3. in timeline a (select all) -> shift-E -> linear extrapolation
  4. change to graph editor

enter image description here

and now carefully check the next frames if it still fits, if not just move that one keyframe on frame 1 up or down so that it fits

enter image description here

--- update

wrong:

enter image description here

right:

enter image description here

here you see the effect difference between starting at 0 or negative:

enter image description here

Improve this answer
$\endgroup$
5
  • $\begingroup$ Hi there Chris, thanks for the help. I've misunderstood one of your steps, the animation is almost correct, but somewhere I have made a mistake. I followed your instructions, can you please check out the file and tell me what I have done wrong. <img src="https://blend-exchange.com/embedImage.png?bid=R2SAAJ8Z" /> $\endgroup$
    – blender breath
    Commented May 22, 2023 at 10:53
  • $\begingroup$ gear1 should start for z-rotation negative to positive, if the z-rotation starts at 0, it doesn't rotate relative to gear2. $\endgroup$
    – Chris
    Commented May 22, 2023 at 11:53
  • $\begingroup$ i updated my answer $\endgroup$
    – Chris
    Commented May 22, 2023 at 12:00
  • 1
    $\begingroup$ Appreciate you help, thanks! $\endgroup$
    – blender breath
    Commented May 22, 2023 at 23:19
  • $\begingroup$ you are welcome $\endgroup$
    – Chris
    Commented May 23, 2023 at 8:57

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .