What is 3D printing? Otherwise known as rapid prototyping, this process creates a real object from a digital 3D model. Inexpensive desktop 3D printers are making it easy for anyone to design and make original objects for diverse purposes including aerospace components, interior design, medicine and art. Come see the library's brand new MakerBot Replicator 2 printer, touch samples and ask questions. Teens and adults can also sign up to be trained to use the printer.