I am trying to work on a model that has symmetrical typology, but the head is asymmetrical. I selected two opposite sided faces, then selected Mesh>Set Topological Axis. Every time i do this i get the error, “Symmetry not found. Select two adjacent faces which are opposite sides of the topological axis.” I then tried doing this to a box and i get the same error message.

I've always gotten that error when I try that. I'm sure theres a way around inside of mudbox. For me switching to Zbursh Fixed the issue...

oh my never encountered that...I usually have my models symmetrical when working with it though.

The key there is "Adjacent". You need to select two faces - one on each side of the center of symmetry that are touching each other. If that doesn't work, there's probably something about your topology that's not symmetrical.

doh! thanks man that did the trick.

i also get that even with simmetrical meshes and still no simmetry, god this program has given me so many headaches...