# Constant Animation and Path Issue

**URL:** <https://forum.kirupa.com/t/constant-animation-and-path-issue/160111>\
**Category:** design\
**Created:** [August 23, 2005, 2:32pm UTC](https://forum.kirupa.com/t/constant-animation-and-path-issue/160111 "2005-08-23T14:32:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Fargate](https://avatars.discourse-cdn.com/v4/letter/f/dbc845/32.png) [@Fargate](https://forum.kirupa.com/u/Fargate)\
**Post date:** [August 23, 2005, 2:32pm UTC](https://forum.kirupa.com/t/constant-animation-and-path-issue/160111/1 "2005-08-23T14:32:50Z")

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Ok, so what I have is a flatened torus which makes a ring and on it I’ve placed 3 spheres. The problem is how would I get the spheres to orbit the ring at a constant speed.You could just do it in say 10 frame tweens but that would be tedious and there is no way to keep the displacement constant. I’ve attached an image to better illustrate what I mean here. Any help would be greatly appreciated :).

Thanks,

Fargate

[![](http://img356.imageshack.us/img356/6110/orbit4qo.th.jpg)](http://img356.imageshack.us/my.php?image=orbit4qo.jpg)