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You can create a surface in your model that represents a smooth transition between two unrelated surfaces. Surfaces can be defined as faces or sets of faces of solids/surfaces. The surfaces do not necessarily have to share edges or intersect. When creating a surface (hereinafter referred to as a fillet surface), the "rolling a ball" method and the method of moving a plane section along an orientation line are used.

The section of the rounding surface can have the form of a circular/elliptical arc, a conical curve, or a spline — depending on the conditions of mating with the specified surfaces.

Rounding surface (mating conditions specified)

Sometimes it is required to build a rounding surface without sag and tangency (type 'chamfer'). The mating conditions are not specified in this case and the rounding surface is actually built as ruled surface by two curves.

Rounding surface (mating conditions are not specified)

The shape and position of the fillet surface's lateral edges are adjustable. The constructed fillet surface can be used to trim the original surfaces and stitch them together into a single surface.

See Also

Building a rounding surface

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