Creating a Basic Functional Surface

You can create a basic functional surface and specify the functions related to it without creating a template or instantiating it.

Before you begin:
  • You must be an author to perform this task.
  • Open a 3D shape representation.
  1. From the section of the action bar, click Functional Surface Creation .
  2. In the Functional Surface dialog box, under Characteristics, enter the name and specify the functions related to the surface.

    Note: You can define functions using Data Setup.

    The name can be modified by both a leader and an author when instantiating. The functions can be modified only by a leader.

  3. Under Geometry:
    1. Select the required surfaces to define the functional surface template.
    2. From the Feature type list, select the type of feature if not automatically computed.

      Click to specify the geometry canonicity and its feature of size. When you specify the canonicity or feature of size and the selected feature type is not applicable, an icon appears for invalid feature type. You can select the valid feature type proposed in the Feature type list.

    A preview appears in the dialog box.
  4. Under (Size), Form, Surface Texture, select the required options to define the intrinsic geometrical tolerance specifications and the possible failures caused due to poor tolerance management.

    When the functional surface geometry is invalid, the size, form, and roughness annotations becomes invalid and the mask appear on their nodes.

  5. Under Positioning Constraint(s):
    1. From the list, specify one of the following constraints:

      • P(L): Applies the positioning constraints with least material condition
      • P(M): Applies the positioning constraints with maximum material condition
      • O(L): Applies the orientation constraints with least material condition
      • O(M): Applies the orientation constraints with maximum material condition
      • PO(L): Applies positioning and orientation constraints with least material condition
      • PO(M): Applies positioning and orientation constraints with maximum material condition
      • NoPos: Does not apply any positioning or orientation constraints
      • More: Applies the position and orientation constraints to the specific surfaces based on the set in type (primary, secondary, and tertiary). You can also select the Favorable clearance check box to consider the favorable clearance.

    2. From the list, select the mechanical junction with respect to which the selected constraint is to be applied.
  6. Under More Characteristics, in the Description box, enter the description about the functional surface.