Essentials of Drafting: A Textbook on Mechanical Drawing and Machine Drawing (Classic Reprint)

The evening technical school has been rapidly developing during recent years. From a makeshift it is coming to occupy a field distinctly its own. The ambitious man attending an evening technical school is fully the equal of his brother at the day technical school and his worth is being increasingly reaU zed. The foundation subjects mathematics, mechanics, and drawing require particular attention in evening courses, where the time may be somewhat limited and the needs of the student varied. This book has been prepared forO hio Technical Drawing School students as part of a technical com-se. Progress in engineering work of any kind depends upon an intimate knowledge of mechanical drafting as the language of the engineering world. I ts possibiU ties must be understood. The mere drawing of lines and more or less copying of exercises or sketching from a few models is far from the purpose of a drawing course. The value of drawing as one of the working tools to be treasured and used during a lifetime in the most useful of professions, engineering, should be realized. It is as an aid in the study, and later use of engineering knowledge, that drawing finds its place. These preliminary remarks may serve to explain the makeup of the book. The actual handling of the instruments can best be taught by careful individual instruction of each student, after which false or awkward motions should be immediately corrected. Inefficiency in this respect is one of the most severe handicaps of many self-made draftsmen. The treatment of the various subjects is necessarily somewhat brief, as it is intended that personal instruction should be given in each subject. In the first studies the student is taught to represent each object in strict conformity to the laws of projection.
(Typographical errors above are due to OCR software and don't occur in the book.)

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