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The Vent PropertyManager appears when you create a new vent fastening feature. You must create a sketch of the vent that you want to create, then set the vent options in the PropertyManager.

The PropertyManager controls these properties:


  • Select sketch segments for boundary  . Select sketch segments to form a closed profile as the outer vent boundary. If you pre-select a sketch, its outer entities are used as the boundary.

    You can create a vent of any shape.

Geometry Properties

  • Select a face . Select a planar or non-planar face for the vent. The entire vent sketch must fit on the selected face.

  • Draft Angle . Click Draft On/Off to apply draft to the boundary, fill-in boundary, plus all ribs and spars. For vents on planar faces, draft is applied from the sketch plane.

  • Draft inward.

  • Neutral Plane (For non-planar faces only). Select a starting plane (remains fixed) from which the draft is applied. This can be the same plane as the sketch plane.

  • Fillet Radius . Sets the fillet radius, which is applied to all intersections between the boundary, ribs, spars, and the fill-in boundary.



No fillets


  • Show preview.

Flow Area

  • Area (in square units). Total available area inside boundary. This value remains fixed.

  • Open area (as percentage of total area). Open area inside boundary for air flow. This value updates as you add vent entities. Draft, fillets, ribs, spars, and the fill-in boundary reduce open area.


  • Select sketch segments for ribs.

  • Depth of ribs.

  • Width of ribs.

  • Offset from surface. Offsets all ribs from the surface. Click Reverse Direction if necessary.


You must create at least one rib before you can create spars.

  • Select sketch segments for spars.

  • Depth of spars . Sets the depth of all spars.

  • Width of spars . Sets the width of all spars.

  • Offset from surface. Offsets all spars from the surface. Click Reverse Direction if necessary.

Fill-In Boundary

  • Select sketch segments for fill-in boundary . Select sketch entities that form a closed profile. At least one rib must intersect the fill-in boundary.

  • Depth of fill-in boundary .

  • Offset from surface. Offsets the fill-in boundary from the surface. Click Reverse Direction if necessary.


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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