Home / Catia Help / Creating Tritangent Fillets in catia

Creating Tritangent Fillets in catia

The creation of tritangent fillets involves the removal of one of the three faces selected.This task shows how to create a tritangent fillet.
You need three faces two of which are supporting faces.Open the TritangentFillet.CATPart document.
  1. Click Tritangent Fillet x1.
    The Tritangent Fillet Definition dialog box appears.
  2. Select the faces to be filleted.
    x2 x3
  3. Select the face to be removed, that is the upper face. The fillet will be tangent to this face.
    This face appears in pink.


Optionally, click Preview to see the fillet to be created.

Limiting Elements

You can trim tritangent fillets to a plane, face or surface. To do so, expand the dialog box and click the Limiting element field.

  1. Select Plane.2 as the limiting element.
    An arrow appears on the plane to indicate the portion of material that will be kept. Clicking this arrow reverses the direction and therefore indicates the opposite portion of material.
  • Contextual commands creating the limiting elements you need are available from the Limiting element field:
    • Create Plane: see Creating Planes
    • XY Plane: the XY plane of the current coordinate system origin (0,0,0) becomes the limiting element.
    • YZ Plane: the YZ plane of the current coordinate system origin (0,0,0) becomes the limiting element.
    • ZX Plane: the ZX plane of the current coordinate system origin (0,0,0) becomes the limiting element.

    If you create any of these elements, the application then displays the corresponding icon in front of the Limiting elements field. Clicking this icon enables you to edit the element.

  1. Click OK.
    The faces are filleted. The fillet is trimmed to Plane.2. The creation of this fillet is indicated in the specification tree.


Interrupting Fillet Computations

In case you made a mistake when defining a fillet (wrong radius value for example), you can interrupt the feature computation launched after clicking OK, provided that the computation requires at least 5 seconds to perform.

When a computation exceeds 5 seconds, a progress bar appears and provides a Cancel option. To interrupt the operation, just click Cancel. This interrupts the process and then displays an Update Diagnosis dialog box enabling you to edit, deactivate, isolate or even delete the feature.

This capability is available for any types of fillet features you are creating or editing.

Multi-selecting three faces then clicking Tritangent Fillet  tells x1the application to remove the third face.

Leave a Reply

Your email address will not be published. Required fields are marked *