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 # stretch\_free\_boundaries

 Last update: 20.02.2026 

<a id="ansys.meshing.prime.SurfaceUtilities.stretch_free_boundaries"></a>

#### SurfaceUtilities.stretch\_free\_boundaries(face\_zonelet\_ids, params)

Stretch free boundaries of each zonelet.

- **Parameters:**
    
    **face\_zonelet\_ids**: Ids of face zonelets.
    
    **params**: Parameters to control stretch free boundaries operation.
- **Returns:**
    
    [`StretchFreeBoundariesResults`](ansys.meshing.prime.StretchFreeBoundariesResults.md#ansys.meshing.prime.StretchFreeBoundariesResults): Returns the StretchFreeBoundariesResults.
- **Return type:**
    
    [`StretchFreeBoundariesResults`](ansys.meshing.prime.StretchFreeBoundariesResults.md#ansys.meshing.prime.StretchFreeBoundariesResults)

### Examples

```pycon
&gt;&gt;&gt; result = surf_utils.stretch_free_boundaries(face_zonelet_ids, params)

```