Intersection

Calculating the curve of intersection between two surfaces is useful for surface trimming or to use as a curve for a 3D groove feature.

The intersection of two surfaces that meet is generally a 3D curve. You can create an intersection curve for most surfaces, except:

• Tangent surfaces, such as a surface and its fillet.

  

• Surfaces with a region of overlap.

  

To create an intersection curve:

1. Select Construct tab > Curves panel > From Surfaces > Intersection to display the Surface Intersection dialog.
2. Optionally enter a curve name in the Name field, or leave the default name.
3. Select the first surface in the Surface 1 menu or use the Pick Surface button to select it in the graphics window.
4. Add each intersecting surface in one of these ways:
   • Select the intersecting surface in the Intersecting Surfaces menu and click the Add button to add it to the Surface list
   • Click the Pick Surface button and select each surface in the graphics window.

   To remove a surface from the Surface list, select it and click the Delete item button.

5. Click the Preview button to see the intersection curve highlighted in the graphics window.
6. Click OK.