To Work With Trimming Surfaces

Trim a Surface

1. Click Modeling tab > Surface panel > Surface Trim drop-down > Surface Trim.
2. Select the surface and press Enter.
3. Select the cutting curves and press Enter.
4. Select the surface areas to remove and press Enter.

   The selected areas are removed.

Trim a Surface to a Projected Curve

Use this procedure to use geometry that visually intersects a surface from the current view as a cutting edge for trimming.

1. At the Command prompt, enter SURFACEAUTOTRIM. Then enter 1.
2. At the Command prompt, enter PROJECTGEOMETRY.
3. Select the object to project onto the surface and press Enter.
4. Select a surface as the target and press Enter.

Restore a Trimmed Surface

Use this procedure to restore geometry that was trimmed using SURFTRIM.

1. Click Modeling tab > Surface panel > Surface Trim drop-down > Surface Untrim.
2. Select a visible part of the surface and press Enter.

   The trimmed areas are replaced.

Note: When you trim a surface multiple times, you may lose some of the original trimming edges. In this case, some untrim actions may not be possible.