Constraining individual axes (parent-child constraint)

You can have the source objects in a Parent/Child constraint affect only certain axes of a constrained object.

You can constrain an individual axis with the Parent Child constraint. For example you can have an object only parented on its Y-axis.

To constrain individual axes:

1. Double-click the Parent/Child constraint in the Scene browser to select it.
2. Open the Properties window. The constraint settings display.
3. Expand Constraint Axes and disable the X, Y, or Z axis for the desired translation effect you want to inhibit.
4. To reactivate the unconstrained axes, activate the option.