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A surface fillet creates a smooth blend between intersecting surfaces – a primary surface, and one or more secondary surfaces. The Fillet command creates one curve on each surface the fillet touches, following the curve of the intersection.
When a fillet surface is created, a surface curve is generated on each of the intersecting surfaces to mark the boundary of the fillet. This then allows you to use a Trim Surface (Edit menu) command to trim each surface to the edge of the fillet.
The cross section at any point along the fillet’s length is an arc of either:
Constant radius
Variable radius. Click here to view a radius that decreases along the length of the fillet:
The variable radius is defined by the Start Radius and End Radius parameters. Certain limitations apply to the accurate generation of fillets:
The surfaces must not be parallel or nearly parallel at any point along the fillet.
The fillet cannot take place around a tight corner, the radius of which is less than the fillet radius.
A fillet surface can be intersected, trimmed and filleted in the same way as any other surface type.
You can create a fillet surface using the Fillet (Surface menu) command.
The properties of a Surface Fillet can be altered using the Entity Data (Edit menu) command.