Driven by the Base Rig, the Animation and Automation Rig contains all the controls and complicated interactive elements of the rig. This stage forms the interface for animators to influence the models directly, allowing them to breathe life into these static objects. Additionally, this is the phase of rigging production where one can predefine and automate movements that are either specific, technical, or complex, and/or would just be overly tedious to animate manually. The bell is a very simple setup, as the controllers directly control the locators. Both the front and the rear budges include the same kind of setup. Each budge has three controllers and should be parented into a hierarchy. Adding an Expression Controller to an object allows to add expressions to the chosen transform. After the rigging is done, the budge wheels are really easy to produce.