Surface Offset

Surface Offset offsets a surface along its surface normals. You may need to reverse the surface normals to get the offset you want. Surface offset is an approximate operation.

To use Surface Offset:

1. Select Construct tab > Surfaces panel > From 1 Surface > Offset to display the Surface Offset dialog.
2. Select Create new surface(s) to create a new surface or Modify existing surface(s) to trim the selected surface.
3. Optionally enter a name in the Surface name field. This field is available only if Create new surface(s) is selected.
4. Select a surface from the Surface list, or click the Pick surface button and select it in the graphics window.
5. Enter the offset distance in the Offset field.
6. Enter a Tolerance. This determines the accuracy of the offset.
7. Click Preview to display a preview of the surface in the graphics window.
8. Click OK.