Ключевые слова: 3d printer, 3d printing, adult education, biodegradable, class, coils, course, creative, design studio, designers, expertise, industrial design, industrial design engineering, inservice training, lithographic, lithography, new technology, office, plastics, polymer, prototyping, rapid prototyping, refresher course, skills, spools, supplementary, teaching, technology, thermoplastics, training, wire, workshop,