NO

It’s possible to move ArmControl so that the mechanical arm fully extends to a straight position or orients itself to other positions that you don’t necessarily want. You can limit the range of motion of the arm to ensure that the IK system poses in a predictable manner.

In the following section, you limit the motion for the IK system as follows:

Lock the translation of the control object (ArmControl) so that it can only move in Y and Z.

By locking the X channel so it cannot be selected or modified, the arm will not be able to move from side to side.

Lock the rotations on the swiveling base for the arm so it only rotates about its Y axis, and not about its X or Z axes.

http://download.autodesk.com/us/maya/2011help/index.html

Milestone~ I’m in the process of editing the rig of the robot arm.