Excerpt from Notes on Mechanical Drawing: Introductory to Machine Design; Arranged for Students in the Lewis Institute
The T square should be slightly longer than the drawing board and without swivel head. One of good quality pear wood is quite satis factory but more elaborate ones can be had. The head of the T square is apt to swell from a true surface where it slides along the edge of the board. This may be corrected by occasionally scraping away the bowed part.
The compasses should be the large size supplied with pencil and pen legs and adjustable needle'point. Large dividers usually come with sets but are not very necessary. A set of bow instruments; bow dividers, bow pen and bow pencil, complete the necessary tools. The last two instruments may be' had combined in one instrument whose needle point remains stationary while the pen or pencil leg is twirled around it.
This instrument, well made, is, for small circles, preferable to the old type of bow instruments.
The pen usually called the right line pen should be about six inches long and with spring blade but no hinge.
The catalogs of makers of, and dealers in, drawing instruments offer considerable information regarding the construction and care of instruments.
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Paperback. Condizione: New. Print on Demand. This book provides a comprehensive guide to mechanical drawing, addressing the foundational principles and techniques essential for beginners in the field. The author emphasizes the crucial skills required for accurate and effective mechanical drawing, outlining industry-standard practices and drawing conventions. The book delves into the fundamentals of machine drawing, including instrument selection, drafting techniques, and dimensioning. It explores various drawing standards, such as the U.S. Standard for screw threads, and demonstrates conventions for nuts, bolts, and other mechanical components. Additionally, the book highlights the importance of neat lettering and clarity in mechanical drawing, addressing the nuances of title blocks, dimensioning, and line weights. Through a combination of theoretical knowledge and practical guidance, this book aims to equip aspiring mechanical drafters with the skills and understanding necessary to produce precise and professional drawings. Its comprehensive approach makes it a valuable resource for students, apprentices, and practicing drafters alike. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Codice articolo 9781334175084_0
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PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000. Codice articolo LX-9781334175084
Quantità: 15 disponibili