Instructional Workbook for Drafting

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Contents Chapter 1: Instruments & Equipment Pages 1-1 through 1-15 Chapter 2: Lettering Pages 2-1 through 2-4 Chapter 3: Measuring with the Scale Pages 3-1 through 3-7 Chapter 4: Line Conventions Pages 4-1 through 4-5 Chapter 5: Geometric Constructions Pages 5-1 through 5-14 Chapter 6: Dimensioning Pages 6-1 through 6-11 Chapter 7: Drawing Techniques Pages 7-1 through 7-8

This Instructional Workbook for Drafting is a comprehensive drafting workbook designed to teach the basic drawing techniques common to all areas of drafting. This learning tool can be used in conjunction with any other standard drafting text or with no text at all. Each of the 64 pages is selfinstructing and self-explanatory. All instructional worksheets incorporate current American National Standards Institute drafting standards (ANSI Y14.5M) and are clearly illustrated with easy-to-understand examples of each drawing method shown. The exercises in this workbook have been prepared especially for a beginning course in mechanical drawing, be it in a junior or senior high school, technical school, or college. Most material usually contained in classroom lectures and other technical drafting texts is clearly illustrated and explained in this instructional workbook. The drawing exercises contained on the instructional worksheets are designed to help the beginning drafter develop a basic understanding of the principles of graphic communications and the proper use of drafting instruments. These exercises enable students to demonstrate their knowledge of the material by applying the drafting concepts and techniques they've learned. Clear and concise instructions appear near the top of each worksheet. At the end of every chapter you will find A-size title block sheets containing questions and drawing problems that can be used to evaluate the student drafter's understanding of the content contained therein. Answers to all practice exercises appear in a separate instructor's guide. After the instructional worksheets have been checked by the instructor, they can be kept by each student in a notebook or binder for future reference. If desirable, the students can later bind all sheets together (or just bind the title block sheets) and add a cover page to retain a collection of their work. Use the workbook cover (front and back) as a cover page if you like. Students using this workbook may advance at their own pace, doing so as quickly, neatly, and accurately as possible. The instructor may wish to supplement this instructional information with class demonstrations and other course work.

Instructional Workbook for Drafting Authored by: Illustrated by: Published by:

Paul Wallach and Dan Hearlihy Robin L. Beard Hearlihy 1002 E. Adams, P. O. Box 1747 Pittsburg, KS 66762 866-622-1003

Copyright 2004 by Hearlihy. All rights reserved. Printed in the United States of America. The publisher permits the bearer to right to make multiple copies of the back cover (inside and outside) and one transparency only of each page of this workbook for overhead projector use in the classroom. For no other reason may any part of this publication be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher.

An A-size title block sheet is printed inside the back cover of this workbook. This title block can be copied and used by the student who finds it necessary to redraw a problem. (Or, all exercises can be done on vellum overlaid on top of these title block copies.) The copied title block can also be used for additional problems assigned by the instructor. You are also welcome to make as many copies as you like of the outside back cover. It shows a chart the bears the current ANSI and ISO symbols, drawn full size. All symbols can be scaled directly from this chart. Students are encouraged to read all instructional material carefully and consult the various drafting reference books available in the classroom or library if necessary to overcome an area of difficulty. The instructor is present to provide guidance and explanations and to evaluate the student drafter's progress. It is important that the student drafter read correctly, comprehend thoroughly, and execute completely each task identified in all units. The importance of properly following directions cannot be overemphasized. On every page there is a place for the drawing number. Use your own system to number these sheets or use the page number as shown in the lower right-hand corner. Though the order of progression in which the chapters and worksheets are completed may be changed to better suit your needs, it is not recommended. This workbook is designed so that teachers can make transparencies of each page. All problems and instructional information are contained with a 9-3/4" x 9-3/4" area so the entire image can be seen when projected on a 10" x 10" overhead projector. The transparencies are also great for use as overlay keys when correcting all exercises. Just consult the teacher's guide for the correct answers to the problems and add them to the transparencies. Please do no reproduce these sheets in any way other than to make multiple copies of the back cover (inside or outside) and one set of overhead transparencies. It is unlawful to do so. Through the introduction of this workbook, we are trying to offer quality instructional materials at a reasonable price. Thank you for respecting our attempts to do so.

– Paul Wallach and Dan Hearlihy