You can create new faces by automatically stitching any gaps between free edges. Stitching gaps allows you to replace small faces, fillets, or chamfers that you previously deleted. The operation to stitch gaps is stored as a feature of the part; therefore, you can use the Model Tree to delete the stitch and revert to the original part. For more information, see “What is stitching?,” Section 66.3.
To stitch faces:
From the main menu bar, select Tools
Geometry Repair.
Abaqus/CAE displays the Geometry Repair Tools dialog box.
Tip:
You can also stitch faces using the 
tool, located with the repair tools in the Part module toolbox. For a diagram of the repair tools in the toolbox, see “An overview of repair techniques,” Section 66.2.
From the dialog box, select Stitch.
From the warning dialog box that appears, click OK.
If desired, specify a stitch tolerance from the prompt area for the stitching operation. Abaqus/CAE will stitch only gaps smaller than the tolerance value that you specify.
If you want to select the edges for the stitching operation individually, toggle on Pick edges, click mouse button 2, then specify the edges you want to select.
Tip: You can select edges individually, specify an existing set that includes edges, or select edges using the angle method. For more information about selecting geometry in the viewport, see “Selecting objects within the current viewport,” Section 6.2.
If you have finished repairing the part, you should check its validity by clicking mouse button 3 on the part in the Model Tree and selecting Update validity from the menu that appears.
