Tutorial on how to use Mayas built in IKblend feature to switch between IK and FK on a limb, plus how to setup your own IK/FK switch by using seperate IK and FK limbs to drive a bound limb. This tutorial covers how to animate the weight of orient constraints on and off, how to add custom attributes to objects, and how to use Set Driven Key to have the attribute drive the weight of constraints. Uses Maya 2011.