Extrusion is a type of manufacturing constraint. It is similar to a single draw constraint, but the profile of the resulting shape maintains a constant cross-section along the draw direction.

Due to the nature of the extrusion process, there will always be a hole in extruded parts, so the No Hole option in the microdialog is not available. Extrusion constraints are valid for optimization but not analysis.

Apply an Extrusion Constraint

Select the Extrusion tool and click on a design space to apply an extrusion constraint.

  1. On the Structures ribbon, select the Draw Direction tool on the Shape Controls icon.

  2. Click the Extrusion tool on the secondary ribbon.

  3. Click on a design space to apply an extrusion constraint.
    A microdialog appears, along with a set of three orthogonal planes. The active plane is shown in blue.
  4. Select a plane to orient the extrusion draw direction.
  5. Right-click and mouse through the check mark to exit, or double-right-click.
Tip: You can also right-click on a design space in the modeling window or in the Model Browser and choose Shape Controls > Extrusion from the context menu.

Extrusion Examples

Figure 1. Design Space

Figure 2. Optimized Shape with Extrusion Applied