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.
It is recommended that at least one assembly component is either fixed,
or mated to the assembly planes or origin. This gives a frame of reference
for all other mates, and helps prevent unexpected movement of components
when mates are added.
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
A fully defined component does not have a prefix.
You cannot fix or float an instance in a
To fix or float an assembly component:
component in the graphics area or the component’s name in the FeatureManager
In assemblies with
multiple configurations, select This Configuration,
or Specified Configurations.
You can also control in a
table whether the position of a component is fixed or floating.
Components in An Assembly