Creating a Diabolo

Diabolo enables you to include a seat surface onto a base surface.

This task shows you how to:

Before you begin:

  • You must have access to the Generative Shape Optimizer or Automotive Body in White Templates product.

  • Create a 3D shape containing two surfaces.

Create a Diabolo

You can create a diabolo on the base element.

  1. Click Diabolo in the BiW Templates toolbar.

    The Diabolo Definition dialog box appears.

  2. Select the Seat Surface.

    Warning: The seat surface must have a closed contour and belong to one domain.

  3. Select the Base Element.



  4. Select the Draft Direction.

    To define this direction, you can select either a plane, a line or an axis X, Y, Z. The draft direction is not mandatory: the default direction is the normal direction to the seat surface.

  5. Select the Draft Angle.

    There are three ways to define the draft angle under the following tabs:

    • Wholly defined: the draft angle is applied to all the edges of the seat surface boundary. In addition, you can also specify the angle by clicking Law. This law is applied along the seat surface boundary. The Law type that can be specified is Constant or Advanced.
    • G1-Constant: separate draft angles are applied to each set of edges continuous in tangency.
    • Location values: the draft angle is specified at different vertices along the seat surface boundary. The seat boundary should be continuous in tangency.

    The default draft angle value is 5 degrees.

  6. Click Preview.



  7. Click Reverse Direction to invert the orientation of diabolo.

    Important:
    • The Reverse Direction button is enabled only if there are multiple solutions possible to create the diabolo. If there is only one solution possible, this button is disabled.
    • You can also click the red arrow in the geometry to change the orientation.

  8. Click Preview again.



  9. Click OK.

    The diabolo (identified as Diabolo.xxx) is added to the specification tree.

    Diabolo with a 5 degrees as draft angle

    Diabolo with a 30 degrees as draft angle

Create a Diabolo on Volume

You can create a diabolo with a volume or a solid feature as the Base Element.

Here is an example with a volume.

  1. Click Diabolo .

    The Diabolo Definition dialog box appears.

  2. Select the Seat Surface.

    Warning:
    • The seat surface must have only one boundary and belong to one domain.
    • The seat surface should not completely cross the base element, otherwise an error message is issued.

  3. Set the volume as the Base Element.



  4. Click OK to create the diabolo on volume.