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Mounting Boss

The Mounting Boss PropertyManager appears when you create a new mounting boss fastening feature.

The PropertyManager controls these properties:


  • Select a face . Select a planar or non-planar face on which to place the mounting boss. The software creates a point (where you select the face) in a 3D sketch.

    To position the mounting boss, do one of the following:

    • Edit the 3D sketch, then dimension the point.

    • To place the mounting boss at an exact predefined location, before or after you create the boss, create a sketch with a point at the desired location, then select that point for Select a face .

You cannot edit the point during feature creation.

  • Select Direction (non-planar faces only). Set a direction for the boss. If not specified, the boss is placed normal to the face at the selected point. Click Reverse Direction if necessary.

  • Select circular edge (optional). Select a circular edge to position the center axis of the  mounting boss.

The projected center of the circular edge must intersect the face where the mounting boss is positioned.


Mounting boss position before selecting circular edge

Position after selecting circular edge


  • Enter boss height. Sets the boss parameters.

  • Select mating face. Activates the Mating face box and deactivates the Boss height box.

  • Mating face . Select a face to which you mate the top of the boss. The boss height is automatically calculated. If you change the height of the mating face, the boss height changes too.

    You can mate the boss to a face that does not contact the boss. For example, the mating face and the boss can be side-by-side.

    In the image, the mating face is the bottom of the lid (transparent). The boss height is automatically calculated based on the mating face. The green highlighted edges show the mating face meeting the boss. The mounting pin penetrates the lid.


  • Select a direction vector.  Select a direction vector to position one fin. Other fins position themselves automatically around the boss. Click Reverse Direction if necessary.


No draft


 Fin width sets the thickness at the base of the fin, before applying draft.

Fin length is measured from the center of the boss.

  • Number of fins .


  • Equally spaced. (Available for two fins only.) Creates a 180 degree angle between the two fins. This option is useful for corner bosses. Clear this option to select a direction vector that defines the second fin's orientation.

Equally spaced selected.

Equally spaced cleared.

Select a face or edge to define the orientation of the second fin.

Mounting Hole/Pin

  • Pin. Creates a mounting pin.

  • Hole. Creates a mounting hole.



  • Enter diameter. Activates the Hole/pin diameter box.


  • Select mating edge. Activates the Mating edge box and deactivates the Hole/pin diameter box.

  • Mating edge . Select a mating edge to automatically define the diameter.

    In the images, the edge of the selected hole automatically determines the pin diameter

Pin diameter before selecting a mating edge

Pin diameter after selecting the mating edge shown


Manage a list of favorites that you can reuse in models.

  • Apply Defaults/No Favorite . Resets to No Favorite Selected and the default settings.

  • Add or Update a Favorite . To update a favorite, edit the properties, click , and enter a new or existing name.

  • Delete Favorite

  • Save Favorite

  • Load Favorite . Click this option, browse to a folder, and select a favorite.

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