More about Shafts

You can revolve a 2D profile around an axis to create a shaft feature. This topic provides you with the information you need to create a shaft.

The following are discussed:

Related Topics
Creating Shafts

Shaft Definition Dialog Box

This section describes the various options available in the Shaft Definition dialog box to create a shaft.

Thick Profile and Thin Shaft

Selecting the Thick Profile check box expands the dialog box, giving you access to the Thin Shaft options. These options allow you to add thickness to both sides of the profile used to create the shaft.

In the example below, the shaft is created using the Thick Profile option. Selecting this option opens the whole Shaft Definition dialog box, which lets you then define Thickness 1 and Thickness 2.



Initial profile

Resulting shaft

The profile is previewed in dotted line. Thickness has been added to both sides of the profile.



Important: The Thin Shaft capability does not allow you to extrude networks.

Neutral Fiber:

The Neutral Fiber option adds material equally to both sides of the profile. The thickness defined for Thickness 1 is evenly distributed to each side of the profile.

Merge Ends:

The Merge Ends option attaches the profile endpoints to adjacent geometry (axis or if possible to existing material) as illustrated below:

Initial profile



Resulting shaft

The profile has been attached to the axis.



Using Thick Profile you can create shafts from open profiles but you cannot use the Merge Ends option.

About Profiles/Surfaces

This section provides information on the profiles/ surfaces used to create a shaft.

Profiles

You can:


  • Create shafts from sketches including several closed profiles. These profiles must not intersect and they must be on the same side of the axis.
  • Define whether you need the whole sketch, or sub-elements only. For more information, see Using the Sub-Elements of a Sketch.
  • Use open profiles in geometrical sets provided you create a thin solid.
  • Change the sketch by clicking the box and by selecting another sketch in the geometry or in the specification tree.
  • Use any of these creation contextual commands available from the Selection box:


    • Insert Wireframe > Create Sketch: For more information, see Sketcher User's Guide: Creating a Positioned Sketch.
    • Insert Surfaces > Create Fill: Creates fill surfaces between the boundary segments. For more information, see Generative Shape Design User's Guide: Creating Surfaces: Creating Fill Surfaces.

    • Insert Operations > Create Join: Joins surfaces or curves. For more information, see Generative Shape Design User's Guide: Performing Operations on Shape Geometry: Joining Surfaces or Curves.
    • Insert Operations > Create Extract: Generates separate elements from non-connex sub-elements. For more information, see Generative Shape Design User's Guide: Performing Operations on Shape Geometry: Extracting Geometry: Extracting Elements. If you create any of these elements, the application then displays the corresponding icon in front of the box. Clicking this icon enables you to edit the element.

  • If you have chosen to work in a hybrid design environment, the geometrical elements created on the fly via the contextual commands mentioned above are aggregated into sketch-based features.
  • You can also edit your sketch by clicking the icon that opens the Sketcher workbench. Once you have done your modifications, the Shaft Definition dialog box reappears to let you finish your design.
  • If you execute the Shaft command with no profile previously defined, just click the icon and select a plane to access the Sketcher workbench, then sketch the profile you need.
  • You can use wireframe geometry as your profile and axes created with the Axis System command. For more information, see Generative Shape Design User's Guide: Using Tools: Defining an Axis System.

Surfaces

You can create shafts by selecting a surface as illustrated in this example:



About Axes

You need to define a axis while creating a shaft.

You can select axes from the geometry area, not from the specification tree. Additionally, keep in mind the following recommendations:


  • When the selected sketch both contains a profile and an axis, the latter is selected by default as the revolution axis.


  • You can select an axis belonging to a plane distinct from the profile plane. Just make sure that the axis does not intersect the profile.


  • Contextual commands creating the directions you need are available from the Selection box:


    • Create Line: For more information, see Generative Shape Design User's Guide: Creating Wireframe Geometry: Creating Lines.
    • X Axis: The X axis of the current coordinate system origin (0,0,0) becomes the axis.
    • Y Axis: The Y axis of the current coordinate system origin (0,0,0) becomes the axis.
    • Z Axis: The Z axis of the current coordinate system origin (0,0,0) becomes the axis.

    If you create any of these elements, the application then displays the corresponding icon in front of the Selection box. Clicking this icon enables you to edit the element.