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3 If you do not want to assign a second body to the Hinge, turn off the
Parent check box if necessary.
4 If the Hinge is to be two-bodied, repeat step 2, using the Parent pick
button to set Parent for the Hinge.
To create a Hinge and attach objects in a single step:
■ See the Scripts on page 4103 topic.
To change the Hinge positions and rotations for the bodies:
1 With the Hinge helper object selected, open the Modify panel.
2 In the modifier stack open the sub-object list for the Hinge.
3 Access the sub-object level corresponding to the object whose hinge axes
you want to move: Child Space or Parent Space. If the Hinge is
single-bodied, Parent Space represents the world attachment position
and rotation of the axes.
4 The space, represented by a pair of axes, the larger of which represents
the hinge axis, the smaller of which is used to specify limits, becomes
active in the viewport. It can be moved and rotated using the Move and
Rotate tool respectively. The space maintains its position and rotation
relative to its corresponding object. For example, if you move or rotate
the child body, the Child Space moves with it.
5 To reset the axes to their default alignment, reattach the objects to the
Hinge or click the Align Spaces To > Child Body button.
3970 | Chapter 16 reactor