Parent Constraint
Changes the parent of a constraint from a point in space to a goal object.
This tool is useful for constraining a constrained object to another. For example, you can constrain two things rolling down a hill together.
You need to create a constrained
RBD object before you can use this tool.
Using Parent Constraints
Click the
Parent Constraint button on the Rigid Bodies tab.Select the constraint to change parent and press Enter to confirm your selection.
Select the new goal object and press Enter to confirm your selection.

Moving a Parent Constraint
Click the
Dynamics Select Mode button on the selector and handle controls toolbar.Click
the constrained object in the scene view.Click
the
Dynamics Select Mode button and turn on the Dynamics Modifiers checkbox.
Click
the constraint you want to edit and press Enter to display the transformation handles.
Switching to the dynamics level
Click the
Dynamics Select Mode button on the selector and handle controls toolbar.Click
the constrained object in the scene view.
