11 August 2018
- Last edited 11 August 2018
This looks like a heart, since it has an aorta. What is your simulation goal. What wall thickess would you use to hollow out. If it is a CT image, the wall thickness would be visible in the image and a surface of the interior wall could have been made.
There is a warning message about increasing the size of the model by orders of magnitude. I'm still waiting for that to finish.
The problem you will face is that the resulting solid will have many more than the 300 faces that the Student license limit allows. I am fortunate to have two computers, one with a full license and another with the Student license.
You need to bring the STL file into another CAD system, not SpaceClaim, and convert it to a solid using shrinkwrap-like methods in that CAD system to replace hundreds of facets with a single b-rep curved surface, and a collection of those surfaces, but < 150, will define the outside surface. When you hollow out the interior, the number of surfaces will double. Each surface counts as a face.