shell features
Shell tool is a feature to create a thin wall in a solid product.
If we do not want to choose the face on the model, we can shell in the solid part,
If Shell we do have a problem, Error Diagnostics will appear on PropertyManager to help us diagnose the problem.
To make the features of the shell with a thickness:
Shell Click on the toolbar or Insert Feature, Features, Shell.
In PropertyManager, under Parameters:
Set the Thickness to adjust the thickness of the faces.
Select one or more faces in the area of graphics.
Click OK