Since
animation-constraint blending lets you transform the constrained channels
of a driven object, you must lock the constrained channels that you
want strictly influenced by the target objects.
After
transforming a constrained object, you can retain its new translation,
rotation, and/or scaling by reapplying Maintain Offset from
the Modify Constrained Axis Options window.
This prevents the constrained object from snapping back to its original
translation, rotation, and/or scaling when its target objects are
transformed.
To
blend animation and constraints on the same object
Animate
and constrain the same object.
Edit
and key the pairBlendWeight attribute
to animate the amount of influence the constraint and keyframe animation
have on their target object. See
Blend Weights in the Channel Box.
To
blend set driven key animation with constraints
Apply
set driven keys and constraints to the same object.
Edit
and key the Blend ConstraintTypen channel
on the constrained/driven object’s transform node to animate the
amount of influence the constraint and driver have on their constrained/driven
object.