Prerequisite: ENGR 126 or equivalent. Focuses on mechanical design principles and practices in various specialized areas of mechanical/industrial drafting. Topics include bearings and shafts, gearing and cams, threads, fasteners, and springs. Introduces industrial dimensioning and tolerancing principles based on ANSI Y14.5M standards. Detailed representation is accomplished using two- and three-dimensional drawing techniques. Two class hours and four lab hours weekly.