Is radial symmetry possible?

I want to know if it is possible to have an object be edited so that every vertex at x degrees is edited the same way. I’m trying to make gears and this would be really helpful.

Array modifier with a rotated empty set to be the object offset


If you use the sculpt mode there is radial symmetry available, but not for poly modelling

Attachments

radial.blend (96.8 KB)

I did a short tutorial on something similar to this, using the technique Richard describes, here:

[video]https://youtu.be/dGebrhCo9DU[/video]