A simulation is a three-dimensional preview of your structure, constructed with help of your cells. It displays bars, faces, and STL elements of the multiplied cells, but does not take into account any bar profiles or face specifications. Solid areas are not displayed. The part is displayed in a transparent way, enabling a view on both its exterior shape and its interior structure.
If you have more than one set of volume data, all of them are included in the simulation and you can have several structures in the same position, allowing you to insert several structure cells in the same sections of parts.
When the simulation is displayed, Netfabb returns to the structure screen, where the following options are available in the tabsheet: