Extrude

To extrude planar objects into 3D objects, on the Geometry toolbar click Extrude (). You can also right-click the Geometry or a Work Plane feature to add this from the context menu. Then enter the properties of the extrude operation.

General

From the Extrude from list, select Faces to extrude planar faces from the 3D geometry. Select the faces that you want to extrude in the Graphics window. They appear in the Input faces list. All selected faces must lie in the same plane. Alternatively, from the Extrude from list, select Work plane to extrude objects from a work plane. In the Work plane list, select the work plane to extrude from. Select the objects that you want to extrude in the Graphics window. They appear in the Input objects list.

Select the Unite with input objects check box to unite the input objects with the extruded objects. Clear the Unite with input objects check box to keep the extruded objects separate from the input objects.

Click the Active button to toggle between turning ON and OFF the Input objects selections.

Distances from Plane

Specify one or several distances in the table. These determine the height above the work plane or planar faces for the top of each layer. The Reverse direction check box reverses the direction of the extrusion.

If you extrude several layers, remove the interior boundaries by clearing the Keep cross-sectional faces check box.

The direction arrow that appears in the Graphics window indicates the length of each extrusion distance.

Scales

For each layer, specify a length scaling factor for the top of the layer relative to the work plane object or planar faces.

Displacements

For each layer, specify a displacement vector for the top of the layer in the work plane’s coordinate system, or the local coordinate system defined by the first face to extrude. The first face is the face with smallest face number in the geometry object that comes first in the geometry sequence.

Twist Angles

For each layer, specify a rotation angle for the top of the layer around the work plane’s normal vector or the normal vector of the first face to extrude. The first face is the face with smallest face number in the geometry object that comes first in the geometry sequence.

Polygon Resolution of Edges

This setting determines how accurately the edges in the extrusion direction are represented.

Selections of Resulting Entities

If you want to make the resulting entities contribute to a cumulative selection, select a cumulative selection from the Contribute to list (the default, None, gives no contribution), or click the New button to create a new cumulative selection (see Cumulative Selections).

Select the Resulting objects selection check box to create predefined selections (for all levels — objects, domains, boundaries, edges, and points — that are applicable) in subsequent nodes in the geometry sequence. To also make all or one of the types of resulting entities (domains, boundaries, edges, and points) that the resulting objects consist of available as selections in all applicable selection lists (in physics and materials settings, for example), choose an option from the Show in physics (Show in instances if in a geometry part) list: All levels, Domain selection, Boundary selection, Edge selection, or Point selection. The default is Domain selection, which is suitable for use with materials and physics defined in domains. For use with a boundary condition, for example, choose Boundary selection. These selections do not appear as separate selection nodes in the model tree. Select Off to not make any selection available outside of the geometry sequence.