2009

Table Of Contents
SelectSet attributeSelectFrame
key selectedArmControl W0: 1CargoBox parent-
Constraint
60
Platform W1: 0
key selectedArmControl W0: 1CargoBox parent-
Constraint
120
Platform W1: 0
key selectedArmControl W0: 0CargoBox parent-
Constraint
121
Platform W1: 1
To playback the animation using the playback controls
1 Click play on the TimeSlider playback controls to play back the animation.
The mechanical arm moves through the motion of the animation and
picks up and moves the cargo box to the new location.
2 Click stop on the TimeSlider playback controls to stop the playback.
You have completed this lesson.
Beyond the lesson
In this lesson, you completed the animation of a mechanical arm model that
picked up and moved a cargo box. You learned how to:
Construct a model hierarchy to provide relationships between the
components for posing and keyframing.
Construct a single chain skeleton to pose the arm model using Inverse
Kinematics.
It is common to create characters with multiple joint chains. For example,
two and four-legged characters would use multiple joint chain skeletons
to assist with posing their hierarchical structure. See Skeleton hierarchy in
the Maya Help. For a tutorial on creating a multiple chain skeleton see
Lesson 1: Skeletons and Kinematics (
Introduction on page 304).
Parent the components of the mechanical arm model into the skeleton
hierarchy.
Parenting is one method for combining a model into a skeleton hierarchy.
When using characters that have bending or deforming features a more
common technique is to use Skin > Bind Skin. For more information see
Beyond the lesson | 301