I did mesh a 1/4 of my solid, then did 2 mirrors, just like shown down there:
Than the 2 mirrors so i can have the whole solid:
I was exporting the file to another software to simulate, Abaqus.
I did a simple test, the program identified that, and i get that warning
"There are 4 unconnected regions in the model."
And then the result of the simulation:
So, that leads me to believe that the mirror tool is not bonding the whole solid, how can i fix that?