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Untrim Surface

(3D only) Used to:

  • Reverse the sense of trim boundaries in a B-spline surface or SmartSurface — that is, convert holes to surfaces and vice-versa.
  • Remove one or more trim boundaries (holes) from a B-spline surface or SmartSurface.

Where a trim boundary is shared by two faces, along an edge, no change is made.

You can access this tool from the following:

  • Ribbon: Modeling > Surfaces > Modify Surfaces
  • Toolbox: Modify Surfaces

Trim Boundary Sets the task to be performed.
  • Reverse — Reverse the sense of the boundaries.
  • Remove All — Remove all boundaries.
  • Remove One — Remove one boundary.