2009

NOTE The icon’s position has no effect on the constraint’s behavior.
To attach objects to the prismatic constraint:
1 Create the Prismatic constraint and the objects to connect using it.
2 On the constraint’s Properties rollout, click the Child pick button and
then, in one of the viewports, select the object to use as the child.
This attaches the constraint to the body at the body’s pivot point. The
constraint's sliding axis is aligned to the Z axis of the object.
3 If you do not want to assign a second body to the prismatic constraint,
turn off the Parent check box, if necessary.
4 If the constraint is to be two-bodied, make sure Parent is on and then
use the Parent pick button to set the parent for the constraint.
To create the constraint and attach objects in a single step:
■ See the
Scripts on page 4103 topic.
To change the Prismatic constraint positions and rotations for the bodies:
1 With the constraint selected, open the Modify panel.
2 In the modifier stack open the constraint’s sub-object list.
3 Access the sub-object level corresponding to the object whose attachment
point you want to move: Child Space or Parent Space. If the constraint
is single-bodied, Parent Space represents the world attachment position
and rotation of the constraint axes.
4 The space, represented by a pair of axes, the larger of which represents
the sliding axis, becomes active in the viewport and can be moved or
rotated using the Move or 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, Child Space moves with it.
5 To realign the constraint space to the child body, reattach the object to
the Prismatic constraint, or choose the Align To Child Body option.
To limit the movement of the child body along the sliding axis:
1 With the constraint selected, open the Properties rollout.
Constraints | 3983