It's successful because it "thinks big" about every aspect of machining parts of this size. Giant wind turbines have become symbols - symbols of a new age of alternative energy sources. The tall, slender towers and sleek, symmetrical rotor blades embody the hopes of energy consumers looking for a cleaner, safer, more sustainable means of generating electricity. Painted white as a cloud and shaped as simply as a three-petaled flower, wind turbines evoke a vision of benign, inexhaustible power for homes, schools and businesses. In fact, wind turbines are highly complex mechanical structures of immense size. The newest turbine designs reach almost 300 feet in height and have blade rotor diameters that exceed 300 feet. Many of the main components are large castings with features that require hundreds of hours of precision machining. One machine shop that has become a specialist at providing this service is Magna Machine Co. in Forest Park, Ohio, a northern suburb of Cincinnati.