2009

4 The corresponding point becomes active in the viewports and can be
moved using the Move tool.
The attachment point maintains its position relative to its corresponding
object. For example, if you move the child object, its space, and hence
its attachment point, moves with it. The attachment point doesn't have
to actually be on either object.
5 To reset the attachment point to the child object’s pivot, reattach the
objects to the constraint, or click the Align Spaces To > Child Body button.
To limit the rotation between the attached objects:
1 With the constraint selected, open the Properties rollout.
2 In the Constraint Type group, choose Limited.
By default, the child body can rotate a total of 90 degrees around each
axis relative to the parent during the simulation: 45 degrees clockwise
and 45 degrees counterclockwise.
3 You can then choose which limits to display around the Parent Space
constraint axis by turning on each one's check box.
4 If you then change the limits, the limit display updates to reflect your
changes to help you choose appropriate values. Upon simulation you
can see that the rotation between the objects has been limited.
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