To Reverse Normal Direction (Repair and Construction)
You can reverse the normal direction of a translated face or body.
Open a file that contains surfaces or solids and enter the repair or construction environment.
On the ribbon, do one of the following:
Click Repair tabModify panel Reverse Normal.
Click Construction tabSurface panel Reverse Normal.
Click one:
Select Individual Face to flip a face within a body.
Select Lump or quilt to flip.
In the graphics window, click one or more surfaces on a single body.
A temporary arrow is displayed in the graphics screen, showing the current normal direction. For a closed shell (solid), a green arrow indicates what the system determines as the proper direction.
Click Apply. The selection is reversed, and the new direction is shown.
Continue to select surfaces to flip. When finished, click Done to quit.