[nikosb]

I am trying to mesh a cube domain around a sphere with multizone method. I read in the STEP file into the DesignModeler and it consists of 6 parts as shown below



I select all parts and form a new part. I then load it into the Mesh and create the Multizone mesh. Here is a section view



When I read it into Setup I get a bunch of interior parts/surfaces. One the interior parts is shown in green color below



Is it possible to create a geometry and mesh without any interior parts? What would be the correct way of doing it?