Creating an Edge Fillet Using a Spine

You can create a variable bi-tangent circle edge fillet on an edge or consecutive edges that do not have any tangency continuity.

The propagation along the edge(s) can be done smoothly when selecting a spine along which an arc of circle is slid. Cutting the resulting fillet surface by a plane normal to the spine would result in a circle of the specified radius value.

Using this type of radius may help solve twisted fillets created when using any other type of fillet.

Before you begin: Create a 3D shape containing a surface with a sharp edge.
See Also
Creating Edge Fillets Using Variable Radii
Creating Bitangent Shape Fillets
Reshaping Corners
  1. In the Edge(s) to fillet box, select the edge(s) to be filleted.
  2. From the Refine section of the action bar, click Edge Fillet .
    The Edge Definition dialog box appears.
  3. Click Preview.
    The fillet is previewed on the geometry.

  4. Change the radius value to 50mm.


  5. Click More>> to expand the Edge Fillet Definition dialog box and select the Circle Fillet option.
  6. Select the line as a spine.


  7. Click OK to create the edge fillet.
    The surface (identified as EdgeFillet.xxx) is added to the tree.

    The same operation without selecting the Circle Fillet check box would have led to the following fillet:



Important:
  • You can use any curve as a spine, provided it covers all selected edges, i.e. it is longer than the set of selected edges.
  • In some cases, fillets may be overlapping. Trim ribbons lets you solve this by trimming the fillets where they overlapping. For further information on this option, refer to Creating Edge Fillets.
  • Click More>> to display further options:
    • The edge that should not be filleted (see Creating Edge Fillets).
    • The Blend corner(s) option (see Reshaping Corners).