Adobe ACROBAT 3D Manual page 564

Cross section settings
The following options appear when you choose Cross Section Properties from the Cross
Section pop-up menu on the 3D toolbar:
Alignment
To change the alignment, select whether the cross section applies to the x, y, or z axis.
Click Align To Face to align the camera to the face of the selected part.
To understand how each axis divides the 3D model, select an axis and then drag the
Offset slider back and forth. To view the results, you may need to select Enable Cross
Section and move the Cross Section Controls palette away from the 3D model.
Show Intersections
Indicates where the cutting plane slices the 3D model. Specify a different color, if desired.
Show Cutting Plane
Displays the transparent field that cuts the 3D model. Specify a different color and
opacity, if desired.
Align Camera With Cutting Plane
Rotates the 3D model so that it's level with the cross section's cutting plane.
Flip
Reverses the cross section. For example, if the top half of the model is cut off in the cross
section, clicking Flip displays the top half and cuts off the bottom half.
Offset
Determines how much of the 3D model is sliced. Drag the slider left or right.
Tilt
Determines the angle of the cutting plane. Drag the Tilt sliders left or right.
After you adjust the cross section settings, you may want to create a view so that
you can return to that cross section later. (See Creating and managing 3D views.)