This one is borderline embarrassing... http://screencast-o-matic.com/watch/cIjqlvVk1R
I can't seem to figure out how to center features to other features. I figured the symmetry face relate would do it, but it doesn't seem to work for this application. I could use dimensions, but they wont scale properly as I edit the rest of the part.
Solved! Go to Solution.
Have a look at this video and see if it helps. http://screencast.com/t/KEmRGIyvu4G
You can create face relate relationships to honor the conditions you want.
Note that you do not need to create "all" the relations becasue live rules still "finds" the coplanar by axis.