2009

Procedures
To create a spring:
■ Choose one of the above options, and then click in any viewport to add
the Spring.
NOTE The icon’s position has no effect on the constraint’s behavior.
To attach objects to the spring:
1 Create the Spring and the object(s) to connect using it.
2 If you do not want to assign a second body to the spring, turn off the
Parent check box on the spring's Properties rollout if necessary.
3 Click the Child pick button and then select the object to use as the child
object in one of the viewports. This attaches the Spring to the body at
the body’s pivot point.
4 If the spring is two bodied, repeat step 2, using the Parent pick button to
set the parent object for the spring.
To create the spring and attach the objects in a single step:
■ See the
Scripts on page 4103 topic.
To change the attachment positions for the bodies:
1 With the Spring constraint selected, open the Modify panel.
2 In the modifier stack, open the Spring’s sub-object list.
3 Highlight the option corresponding to the object whose attachment point
you want to move: Parent Space or Child Space. If the Spring is
single-bodied, Parent Space allows you to move the world attachment
position.
4 The appropriate space becomes active in the viewport 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 actually have to be on the object.
If you move the attachment points so that they're inside or beyond the
Spring rest length, you will see the attachment points represented by
Constraints | 3931