
Create the curves needed to define the surface. These curves are typically at the edges of the adjacent surfaces.

On the geometric construction ribbon, click More in the Geometric Construction box.
The Select Geometric Construction dialog box displays.

Select SurfByBlending and click OK.

Select the first curve.

Select the surface adjacent to the curve.

Select the second curve.

Select the surface adjacent to the second curve.

Continue select curves and surfaces, up to five pairs, until a closed contour of curves is formed.
A preview of the surface displays.

Click Continue.
Temporary geometry displays in the graphic view and as SurfByBlending in the Geometric Construction Explorer.

If needed, create additional geometric constructions.

Click Close to return to the main command ribbon.
The geometric constructions are not created and saved to the model until you click Finish on the main command ribbon to create the model object.