Foundations of Mechanical Accuracy by Wayne R Moore – 1970

A landmark reference work on precision engineering published by Moore Special Tool Company, this 1970 manual explores the fundamental principles required to achieve extreme accuracy in manufacturing and metrology. The text is organized around four core pillars of mechanical accuracy: Geometry (establishing flat surfaces, straightedges, and squareness verification), Length Standards (linear measurement methods, gauge blocks, and international standardization), Division of the Circle (angular measurement and precise rotational geometry), and Roundness (spindle accuracy, concentricity, and hole geometry). The manual provides extensive guidance on universal measuring machine operation and techniques, detailed analysis of cast iron properties—particularly Meehanite and its dimensional stability—and the critical effects of temperature and humidity on precision work. Historical coverage traces the development of metrology instruments, jig borers, and ruling engines used in optical diffraction grating manufacture. An introduction by Dr. George R. Harrison of MIT establishes the theoretical context. This comprehensive technical reference contains 357 pages of detailed diagrams, illustrations, and engineering explanations essential for machinists, toolmakers, metrologists, precision engineers, and anyone working in high-tolerance manufacturing or quality control.