Boundary Surfaces

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The boundary surface feature allows the creation of surfaces that can be tangent or curvature continuous in both directions (all sides of the surface). In most cases, this delivers a higher quality result than the loft tool.

To create a boundary surface feature:

  1. Open Features\BoundarySurface.sldprt.
  2. Click Boundary Surface (Surface toolbar) or Insert, Surface, Boundary Surface.
  3. Under Direction 1:

    1. Select the edge shown for Curves.

      2. Edge <1> is listed under Direction 1.

    2. Select the other edge shown.

      3. Edge<2> is listed under Direction 1. A preview appears.

       
      Select the edges at approximately the same point to prevent twisting. You can also right-click in the graphics area and select Flip Connectors.

    3. Select Edge<1> and select Curvature to Face in Tangent Type as a constraint. Repeat for Edge<2>.

      4. The edge callouts update to show the Curvature To Face curvature constraint. The boundary surface is now curvature continuous along both edges in Direction 1.

  4. Under Direction 2:
    1. Select one of the 3D sketch curves for
      Curves.

      2. The SelectionManager appears with the
      Select Open Loop tool active.

    2. Click the pushpin so the SelectionManager remains available.
    3. Click .

      4. Open Loop<1> is listed under Direction 2.

    4. Select the other 3D sketch curve and click .

  5. Click in the PropertyManager.
     
    Direction 1 and Direction 2 are fully interchangeable. You could have selected the 3D sketch curves for Direction 1 and the edges for Direction 2 and had the same results.

See Boundary Surface in the help.

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