About Trimming, Extending, or Sculpting Surfaces

Shape description is a collection of surface and solid modeling, analysis, and 2d and 3D sketch commands.

With these commands, you can design parts that are aesthetically pleasing by including complex geometric requirements that extend beyond simple prismatic shapes.

Shape description provides:

• Ability to create quality curves that can satisfy certain aesthetic conditions.
• Realistic previews before creation and editing.
• Commands to examine the qualitative and quantitative measurements of the surface geometry, such as consistent wall thickness and curvature of surface geometry.
• Ability to maintain certain continuity requirements at surface boundaries.
• Model browsers that clearly identify feature relationships.

Sculpt command

Use the Sculpt command to add and remove material from an existing solid body, or to create a new solid body based on untrimmed surface geometry. Sculpt works on a wide range of geometry in a surface or mixed surface and solid environment.

You can select surfaces and work planes as bounding geometry for the sculpt operation. In addition, Sculpt implicitly uses existing faces of solids to designate possible boundaries. Sculpt cannot fill or add material in infinite space. Therefore, the surfaces, together with any pre-existing part, must create a closed, water-tight region.

Tips for using Sculpt

• While sculpting, change appearances on key surfaces to distinguish them from others.
• Unlike split and stitch operations, surfaces used for sculpting need trimming to share common edges. Also, surfaces are not required to overlap fully other surfaces that define the boundary.
• By default, sculpt features consume input surface features such as stitched, extruded, or revolved surfaces. Consumed features are nested and indented below the consumer to show the dependency on that feature. In the browser, you can right-click and then select Consume Inputs to change the consumption status.

Extend command

In the Extend command, you make surfaces larger in one or more directions.

When you select the method to terminate the extension, it is a good practice to use Distance termination extent when possible. If the model changes and you terminated on a specific face that no longer exists, you must recreate the extension. By specifying a specific distance, the extension remains intact.

Trim command

In the Trim command, you select a cutting tool to remove surface areas.

If you select a curve as a cutting edge that does not fully intersect the face, it extends automatically. A surface that does not fully intersect the surface extends automatically.

If edits to the cutting tool or the surface bodies selected to be trimmed change how the cutting tool intersects the bodies, the trim recomputes

If edits cause the cutting tool to intersect new surface bodies that did not exist in the initial selection set, those surface bodies are not trimmed.