Deleting Elements when Blending Edges

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In the cases when blend surface completely overlaps other topological entities, two ways of processing the operation are possible depending on condition of the Delete Elements checkbox. This checkbox is located in the bottom part of the General Parameters section in the Parameters window (independently of Edges, Vertices, Boundary and Trimming tabs).

If the checkbox is disabled, the system retains all overlapped elements, while trimming or extending blend surface if necessary.

If the checkbox is enabled, the system deletes all overlapped elements, leaving the blend surface only.

BlendEdges_Parameters_DeleteElements

BlendEdges_DeleteElements6

BlendEdges_DeleteElements7

Blend surface
does not fully overlap blind holes

In result Delete Elements option doesn't delete anything

BlendEdges_DeleteElements8

BlendEdges_DeleteElements9

Blend surface fully overlaps blind holes,
but does not fully overlap protrusion

In result Delete Elements deletes holes but does not delete protrusion

BlendEdges_DeleteElements10

BlendEdges_DeleteElements11

Blend surface fully overlaps both blind holes and protrusion

In result Delete Elements
deletes both holes and protrusion

BlendEdges_DeleteElements01

BlendEdges_DeleteElements2

Blend surface fully overlaps both ends
of through hole

In result Delete Elements deletes hole

BlendEdges_DeleteElements02

 

BlendEdges_DeleteElements4

Blend surface fully overlaps only one end
of through hole

In result Delete Elements should be disabled to create a blend. Otherwise the system will throw an error