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 # stretch\_free\_boundaries

 Last update: 29.04.2026 

<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
>>> result = surf_utils.stretch_free_boundaries(face_zonelet_ids, params)

```