Use the Create Surface from Skin tool to extract a surface from a skin.
The Skin tool extracts either the top or bottom surface of a thin solid for
performing a feasibility analysis.
From the FeasibilityPrepare ribbon, Extract Face tools, click
the Skin tool.
Select the top or bottom surface of a thin solid.
The selected surface is highlighted.
To add to the selection, hover over a surface and press Ctrl + left-click.
To extract the skin, left-click the highlighted surface.
The original thin solid is hidden and deactivated. The skin is created and can be
viewed in the Property Editor. A thickness is automatically calculated and assigned to
the part.
Tip: To delete the skin and restore the original thin solid, click the skin
while the Skin tool is active and press Delete. To reactivate the original thin solid, select View > Model Configuration. You cannot restore a thin solid from a skin once you close the
model.