implementing "mesh/surface/stress/servo" using primitive walls

Submitted by rasoul on Sun, 10/13/2013 - 12:09

How can I implement "mesh/surface/stress/servo" using primitive walls?
I say this because in the "mesh/surface/stress/servo" command, we have to use "File Filename.stl", but I do not have any .stl file in my simulation and I control the simulation domain by primitive walls.

I am looking forward to hearing from you.