Preparing both rough sketches and detailed work with CADD systems. Performing calculations for materials and weight limitations. Communicating with architects and engineers, and incorporating knowledge gained into drawings. Preparing, reviewing and redrafting alongside the engineering team. Draftsmen, or draughtsmen, convert ideas into detailed technical drawings and sketches to provide blueprints for machines and buildings. Becoming a draftsman can be a good career option for professionals who enjoy being creative and have strong designing skills.