Use the Weight setting to control the level of activity of the constraint and create constraint “blends”. The default Weight value is 100%, meaning that the constraint is fully active.
A weight value of 50% indicates that the affected constraint is half as active, and a value of 0% would makes the constraint completely inactive.
A. 0% weighting (the constraint is inactive) B. 50% weighting C. 100% weighting
For example, if you set the weight for a Position constraint at 50%, the position of the constrained object is halfway between its original position and the position of its source object.
The Weight value can also be animated or used in a Relations constraint.