Creating Face-Face Fillets

You can create a face-face fillet between faces without intersection or with more than one sharp edge between them.

The fillet surface is obtained by rolling a sphere between the selected surfaces. The sphere radius must be larger than the distance between the selected elements.

This task shows you how to:

Before you begin: Create a 3D shape containing two surfaces.

Create a Face-Face Fillet

You can create a basic face-face fillet by two faces.

  1. From the Refine section of the action bar, click Face-Face Fillet .
  2. In the Faces to fillet box, select two or more surfaces.
  3. In the Extremities list, select any one of the extremities option that is the relimitation mode.


    • Straight: no tangency constraint is imposed at the connecting point between the fillet and the initial support, generating sometimes a sharp angle
    • Smooth: a tangency constraint is imposed at the connection between the fillet surface and the support surfaces, thus smoothing the connection
    • Maximum: the fillet surface is limited by the longest selected edge
    • Minimum: the fillet surface is limited by the shortest selected edge

    (Refer to Creating Bitangent Shape Fillets)

  4. In the Radius box, enter a radius value if you are not satisfied with the default one.

    This value must be greater than 0.

  5. Select the Conic parameter check box to vary the section of the fillet.
    Note: For a parameter comprised between or equal to:
    • 0.5: the resulting curve is a parabola.
    • 0 and 0.5: the resulting curve is an arc of an ellipse.
    • 0.5 and 1: the resulting curve is a hyperbola.
  6. Click Preview.


  7. You can select theTrim support elements check box to relimit the support elements and assemble them to the fillet.
  8. Click OK.

    The faces are filleted. This fillet is indicated in the tree.



    Important: The selection of the feature prevails over the selection of the sub-element. To select a sub-element, you need to apply the ''Geometrical Element'' filter in the User Selection Filter from the App Options panel.

    To access the App Options panel, from the Tools section of the action bar, select App Options .

    For further information, refer to 3DEXPERIENCE Native Apps.

Limit Elements

While creating the fillet, you can limit it by selecting an element that intersects it completely in the Limiting element box prior to selecting the trimming element.

  1. Select the edge to be filleted and key in the radius.
  2. Click Preview then More>>.
  3. In the Limiting element(s) box, select the either a plane or a surface.

    For further details, refer to the Limit Fillets section in Creating Edge Fillets.

Hold the Curve

Instead of entering a radius value, you can use a "hold curve" to compute the fillet. Depending on the curve shape, the fillet radius value is then more or less variable.

Important: If the Conic parameter check box is selected, the Hold Curve and Spine boxes are unavailable. Conversely, if the Hold Curve or Spine boxes are selected, the Conic parameter check box is unavailable.

  1. In the Faces to fillet box, select faces as shown below and click More>>.


  2. In the Hold Curve box, select a curve.

    The curve must be sketched on one of the selected faces.

  3. In the Spine box, select a spine.

    You can select a sketch.

    The spine provides a better control of the fillet.

    The spine can be a wireframe element or a Sketcher element.

    To compute the fillet, the app uses circles contained in planes normal to the spine. It is then possible to control the shape of the fillet.



  4. Preview the fillet:


  5. Repeat the operation and select Sketch.3 as the spine:


  6. Click OK to create the fillet.


    For more information, see 3D Modeling:3D Modeling Core: Part Design User's Guide.

Fillet Volumes

You can create a face-face fillet to volumes.

  1. Click Face-Face Fillet .
    The Face-Face Fillet Definition dialog box appears.
  2. In the Faces to fillet box, select two or more faces.
  3. In the Radius box, enter the radius value.

    Here, the radius is set to 10mm.

  4. Click Preview.


  5. Click OK to create the fillet volume.


    Important: The Extremities list and the Trim support check box are unavaliable, they cannot be used with volumes.