Hi all!!

I am doing mates in an assembly, and I am having some problem with centering one part on another. If you see the attached picture, I am trying to center the small green part on the larger brownish part. I have made Plane 2 that goes through the center of the hole en the brown part (the hole is of course placed on the center :^)

Now, I would like to mate the center of the green part with Plane 2.

Can annyone help with that - or even if you know of a smarter way of mating the center of a part with the center of another part, I would gladly hear about it!

Thanks in advance,

BR Thomas