Surfaces in the repair environment

Use Intersect Faces to trim or break intersecting faces. Perform in conjunction with Extend Faces to ensure that faces intersect.

1. Open a file that contains surfaces.
2. If necessary, click the Repair Bodies command in the Surface panel and select the base body to create a repair body.
3. Double-click the repair body node in the browser to enter the repair environment.
4. On the ribbon, click Repair tabModify panel Intersect Faces.
5. Choose one of the following methods to select surfaces:

   	Trim: Click Trim, and then select two intersecting faces or bodies, making sure to select the area you want to keep. Surfaces are trimmed to the intersection.
   	Break: Click Break, and then select two intersecting faces or bodies. The surfaces are split at the intersection. All are placed in the same browser group.

   NoteIf more than two surfaces intersect, only two are trimmed at one time.
6. Continue to click Trim or Break and select surfaces in the graphics window.
7. When finished, click Done.

Sometimes surface edges do not match on a translated part. To stitch a body into a solid, the edges must match. Use Extend Face to lengthen or match surface edges.

1. Open a file that contains surfaces.
2. If necessary, click the Repair Bodies command in the Surface panel and select the base body to create a repair body.
3. Double-click the repair body node in the browser to enter the repair environment.
4. On the ribbon, click Repair tabModify panel Extend Faces.
5. In the graphics window, click a surface edge to extend. At the selection point, a line extends to preview the distance the face extends.
6. Enter a distance in the dialog box.
7. Click Apply, and continue selecting edges to extend.
8. When finished, click Done.

In some instances, a translated region may require editing. Reasons include the following:

• A surface is translated with trim going the wrong way.
• A loop meant for the outer edge is used as the inner edge.
• The natural border of the surface is used as the outer edge.
• The surface contains a hole that must be removed.
• The region includes a self-intersecting loop.

Inner and outer regions can be repaired on faces. Only inner regions can be repaired on a quilt.

1. Open a file that contains surface geometry.
2. If necessary, click the Repair Bodies command in the Surface panel and select the base body to create a repair body.
3. Double-click the repair body node in the browser to enter the repair environment.
4. On the ribbon, click Repair tabModify panel Edit Regions.
5. In the graphics window, click a face to repair. The selected face is highlighted.
6. Click regions in the face to keep. Filled holes are not planar but follow the contours of the underlying surface.
7. Click Done. The selected regions are retained while unselected regions and unneeded loops are removed.

1. Open a file that contains surfaces or solids.
2. If necessary, click the Repair Bodies command in the Surface panel and select the base body to create a repair body.
3. Double-click the repair body node in the browser to enter the repair environment.
4. On the ribbon, click Repair tabModify panel Reverse Normal.
5. Click one:
   • Select Individual Face to flip a face within a body.
   • Select Lump or quilt to flip.
6. In the graphics window, click one or more surfaces on a single body.
7. A temporary arrow is displayed in the graphics screen, showing the current normal direction. For a closed shell (solid), a green arrow indicates what the system determines as the proper direction.
8. Click Apply. The selection is reversed, and the new direction is shown.
9. Continue to select surfaces to flip. When finished, click Done to quit.