Have you wondered how something was manufactured? Do you want to learn what it takes to turn your design into a finished product at scale? This course introduces a wide range of manufacturing processes including machining, injection molding, casing, and 3D printing; and explains the fundamental and practical aspects of manufacturing at scale. For each process, 2.008x explains the underlying physical principles, provides several examples and demonstrations, and summarizes design for manufacturing principles. Modules are also included on cost estimation, quality and variation, and sustainability. New content added in 2020 includes multimedia examinations of product disassembly and select updated lecture videos. Together, the content will enable you to design a manufacturing process for a multi-part product, make quantitative estimates of cost and throughput, and recognize important constraints and tradeoffs in manufacturing processes and systems. The course concludes with a perspective on sustainability, digitization, and the worldwide trajectory of manufacturing.