Use the FilletEdges command to create rounded edges on 3D solid objects. You can apply fillets to specified edges or to all edges of the specified faces and specify the fillet radius.
To apply fillets to specified edges, use one of these methods:
Specify edges one by one
Specify an edge tangent to an existing filletted edge
To apply fillets to all edges of one or multiple faces, use one of these methods:
Specify a point inside a face boundary
Specify an edge of a face to apply fillets to all edges. For any edge, you can specify one of the adjacent faces.