Fixing the Position of a Component

You can fix the position of a component so that it cannot move with respect to the assembly origin. By default, the first part in an assembly is fixed; however, you can float it at any time.

In the Insert Component PropertyManager, you can select Only fix first component, Fix, or Float for component positions.
In an assembly, specify at least one assembly component that is either fixed, or mated to the assembly planes or origin. This component gives a frame of reference for all other mates, and helps prevent unexpected movement of components when you add mates.
  • A fixed component has a (f) before its name in the FeatureManager design tree.
  • A floating, under defined component has a (-) before its name in the FeatureManager design tree.
  • A fully defined component does not have a prefix.
You cannot fix or float an instance in a component pattern.

To fix or float an assembly component:

  1. Right-click the component in the graphics area or the component’s name in the FeatureManager design tree.
  2. Select Fix or Float.
  3. In assemblies with multiple configurations, select This Configuration, All Configurations, or Specified Configurations.
    You can also control in a design table whether the position of a component is fixed or floating. See Fixed or Floating Position in Configurations.