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Missing faces


The Missing Faces tool automatically detects and fills missing faces on an object. This tool should be used to find missing faces on imported designs.

Use the FillClosed tool to fill faces when you know where the edges of the new face should be. Use the Missing Faces tool to identify missing faces and fill them automatically or choose which missing faces you want created.

As a precaution, if your design includes any open edge loops, first be certain that the loop(s) are not simply imported parts that may have been designed as a surface body with open regions.

To find missing faces

  1. Click Missing Faces in the Solidify group on the Repair tab.

    The tool will automatically detect and highlight missing faces, as shown in the image above.

  2. Select the object(s) you want to change:

  3. Set the following options:

  4. Use the controls in the Navigate ribbon group to view each problem one at a time before you fix it.
  5. Click the Complete tool guide.

    SpaceClaim creates a new face using the method you selected in the Options panelClosed.

Tool guides

The following tool guides help step you through the process:


The Select Problem tool guide is active by default. This tool guide allows you to select problem areas that are automatically found by the tool.

The Select Geometry tool guide allows you to select edges between faces that were not automatically found. Hold Ctrl to select multiple edges or box select in the design area.

The Exclude Problem tool guide allows you to exclude areas from selection and fixing.

The Complete tool guide creates new faces in areas that are highlighted.


The following options are available in the Options panelClosed:

Minimum angle

The minimum angle between all neighboring edge pairs in the potential missing face edge loop.

Minimum distance

The minimum distance between all of edges in the potential missing face edge loop.


Fix the missing face by extending neighboring faces until they intersect.


Fix the missing face by creating a new face through the bounding edges of neighboring faces.

Faces with a high level of detail on a boundary may have one or more short edges. To make a smooth patch on a boundary, short edges are automatically removed when patching.

Try both

Fix the missing face by extending neighboring faces. If that does not work, SpaceClaim will attempt to fill by creating a patch.

Allow multiple faces

Fix a hole in the surface with two or more missing faces.>

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