Set up the Intersect tool

1. Choose Surface Edit > Create CurvesOnSurface > Intersect ❒.

   When you intersect two surfaces, you can choose which on which surfaces the curves-on-surface are created:

   • To create curves-on-surface on the surfaces on both surfaces when you intersect them, set Create Curves on Surface to Both.
   • To only create curves-on-surface on the surfaces on the first surface, set Create Curves on Surface to On First Surface.
2. Because you want to select a number of planes first, choose Both. This will create curves-on-surface on the planes as well as the surface to be intersected.

Create curves-on-surface at the intersections between surfaces

1. Pick the plane surfaces.
2. Choose Surface Edit > Create CurvesOnSurface > Intersect .
3. Click a surface that intersects the picked planes.

   As you click, the tool creates curves-on-surface at the intersections.

   Troubleshooting trimmed surfaces