I want to perform structural analysis on a plank I am designing for my engineering design course. Unfamiliar with SolidWorks, I constructed the model in Rhino. I performed analysis on all objects of the Rhino model showing that there are no exposed edges (all polysurfaces are closed). In addition, I set my model tolerance to .00001 so each object in my model should be airtight. However, when I import my model in to solid works, solid works is treating the model as if it were a single object, showing many errors due to "unmerged" object faces. I do not want to import this model as a single object, I want to import the model with each object as its own entity to analyze the structure appropriately. Is there an efficient way to do this?