How To: Set up and manipulate action constraints in Blender

This Blender tutorial discusses how to set up action contraints, where you can use a bone to control things like finger curl/expand, or something more advanced, like facial expressions. Whether you're new to the Blender Foundation's popular open-source 3D computer graphics application or are a seasoned digital artist merely on the lookout for new tips and tricks, you're sure to be well served by this free video software tutorial from the folks at CG Cookie. For more information, including step-by-step instructions, take a look!