DOCUMENT RESUME ED 320 025 CE 055 213 AUTHOR Schertz, Karen TITLE Basic Drafting. Revised. INSTITUTION Mid-America Vocational Curriculum Consortium, Stillwater, Okla. PUB DATE 90 NOTE 1,017p.; Revision of ED 219 653-654. AVAILABLE FROMMid-America Vocational Curriculum Consortium, 1500 West Seventh Avenue, Stillwater, OK 74074 (order no. 302001: $45.50). PUB TYPE Guides - Classroom Use - Guides (For Teachers) (052) EDRS PRICE MF07 Plus Postage. PC Not Available from EDRS. DESCRIPTORS Classroom Techniques; *Computer Assisted Design; Construction (Process); Course Content; Curriculum Guides; *Drafting; *Entry Workers; Equipment; Industrial Arts; *Job Skills; Learning Activities; Learning Modules; Lesson Plans; *Orthographic Projection; Postsecondary Education; Secondary Education; Skill Development; Teaching Methods; Test Items; Units of Study ABSTRACT This introductory module on drafting includes the technical content and tasks necessary for a student to be employed in an entry-level drafting occupation. The mottle contains 18 instructional units that cover the following topics: introduction to drafting; tools and equipment; supplies and materials; sketching; scales; drawing format; lettering; lines; reproduction; geometric consi.ructions; orthographic views; auxiliary views; sectional views; axonometrics; obliques; perspectives; dimensioning; and tolerancing. Each instructional -nit follows a standard format that includessome or all of th?se eight basic components: performance objectives, suggested activities for teachers and students, information sheets, assignment sheets, job sheets, visual aids, tests awl answers to tests, and assignment sheets. All of the unit components focuson measurable and observable learning outcomes and are designed to be used for more than one lesson or class period. A list of tools, materials, and equipment; 37 references; and instructional/task analyses are also included. (KC) *******************************************************A*************** * Reproductions supplied by EDRS are the best that can be made * * from the original document. * *********************************************************************** ,, BASIC DRAFTING .= U.S. DEPARTMENT OF EDUCATION "PERMISSION TO REPRODUCE THIS ucabonal Research and Improvement Office of MATERIAL IN MICROFICHE ONLY EDU ORAL INFORMATION CENTEERIC')RESOURCES HAS BEEN GRANTED BY 8 his document has been reproduced as received from the person or Organization ongmating it C Mmor changes have been made to improve reproguthon quabty Pants°, view oe opinions stated untfusdocu- ment do not necessarily represent official TO THE EDUCATIONAL RESOURCES OE.. Position or policy N......e l INFORMATION CENTER (ERIC)." CN t) 'c %4.1 V BEST COPY AVAILABLE 90007195 2\ \Catalog # 302001 North Dakota South Dakota 3 BASIC DRAFTING Revised by Karen Schertz Drafting/CADD Technology Department Coordinator Boulder Technical Education Center Boulder, Colorado Edited by Mary Kellum Curriculum Specialist Developed by 41!? The Mid-America Vocational Curriculum Consortium, Inc. Board of Directors Ann Masters, Nebraska, Chairman Sylvia Clark, Texas, Vice-Chairman Donna Brookhart, Colorado, Parliamentarian Bruce Simpson, Arkansas Janet Huss, Iowa Carol Fagan, Kansas David Poston, Louisiana Harley Schlichting, Missouri Ron Mehrer, North Dakota Ann Benson, Oklahoma Larry Nelson, South Dakota Jim Steward, Executive Director 90.007195 4 Catalog # 302001 ©1990 by the Mid-America Vocational CurriculumConsortium, Inc. All rights reserved. No part of this book may be reproduced in any form or by any means without written permission from the publisher. Printed in the United States of America by the Oklahoma Department of Vocational-TechnicalEducation Stillwater, OK 74074 Mid-America Vocational Curriculum Consortium,Inc. 1500 West Seventh Stillwater, Oklahoma 74074-4364 5 BASIC DRAFTING TABLE OF CONTENTS Unit I: Introduction to Drafting 1 Unit II: Tools and Equipment 59 Unit III: Supplies and Materials 129 Unit IV: Sketching 177 Unit V: Scales 229 Unit VI: Drawing Format 289 Unit VII: Lettering 331 Unit VIII: Lines 375 Unit IX: Reproduction 419 Unit X: Geometric Constructions 455 Unit XI: Orthographic Views 547 Unit XII: Auxiliary Views 669 Unit XIII: Sectional Views 771 Wilt XIV: Axonometrics 859 Unit XV: Obliques 925 Unit XVI: Perspectives 967 Unit XVII: Dimensioning 1005 Unit XVIII:Tolerancing 1115 o 6 iii FOREWORD Basic Drafting is the first volume is a series of instructional materials on drafting developed by the Mid-America Vocational Curriculum Consortium (MAVCC). This publication is designed to include the technical content and tasks necessary for a student to be employed in an entry-level drafting occupation. Additional instructional materials have been developed for Mechanical Drafting, Pipe Drafting,Light Commercial Drafting, Electronic Drafting, Civil Drafting, and Architectural Drafting. These areas of specialization are supplements to Basic Drafting. This publication is a revision of Basic Drafting: Book One and Basic Drafting.Book Two. The revision is in response to the need to update the material and to incorporate computer-aided drafting as a basic tool for drafters. The success of this publication is due to:(1) teacher response that has helped place the MAVCC format in the forefront in competency-based vocational instructional materials and (2) the capabilities of the people who worked on its development.The technical writer, committee representatives, and curriculum specialist brought with them technical expertise and experience related to the classroom and to the trade. As thispublicationisused,itishoped that student performance and teacher effectiveness will improve.Every effort has been made to make this publication basic, readable, and by all means usable.Basic Drafting iswrittenin terms of student performance using measurable objectives. The instructional materials have been developed so that performancc objectives are identified, technical information anti tasks are written to accomplish those objectives, and criterion-referenced evaluation instruments are provided for unliorm measurement of student performance. As with any MAVCC publication, the teacher must take the instructional materials and. (1) localize to fit the community and industry needs, (2) personalize to meet each student's learning style and needs, (3) supplement to match your teaching methods, and (4) motivate. These areas have been left to the individual teacher who should expand and implement each area.Only then will Basic Drafting become a vital part of the teaching- learning process. It is the sincere belief of MAVCC and all those who worked on this publication that Basic Drafting will allow students to be better prepared to be effective members of the work force.If there is anything we can do to help this publication become more useful to you, please let us know. Ann Masters, Chairman Jim Steward Board of Directors Executive Director Mid-America Vocational Mid-America Vocational Curriculum Consortium Curriculum Consortium ACKNOWLEDGEMENTS Appreciation is extended to those individuals who contributed their time and talent to the revision of Basic Drafting. The cor.tents of this publication were planned and reviewed by the following members of the Mid-America Vocational Curriculum Consortium drafting revision committee. Lanny Auringer Rysavy Hartman, Associates Sioux Falls, South Dakota Charles B. Conine University of Arkansas at Little Rock Little Rock, Arkansas Doug Elting Davis, Senton, Stange, and Darling Lincoln, Nebraska Don Litton Boulder Technical Education Center Boulder, Colorado Dem Mogck Tvenge Associates Bismarck, North Dakota Willie Norris and Tri-County Area Vo-Tech School Danny Cowart Bartlesville, Oklahoma Steve Pierce Veenstra-Kimm West Des Moines, Iowa James Platt Architecture Six, Inc. Lake Charles, Louisiana Gary Thomas Martin-Marietta Denver, Colorado Special recognition is given to the authors of MAVCC's Basic Draining, Books Cne and Two upon which this revision is based.Their names are Ronald Davis, Bill Hill, and Bruce Yancey. Thanks are extended by the author to William Christy, a post-secondary drafting student at Boulder Technical Education Center, for his assistance with artwork, and to Leland Schertz for his continued support and understanding. Special appreciation is extended to Nancy Hilley for artwork revision and pasteup of this book and to the employees of the Graphics Division of the Oklahoma Department of Vocational-Technical .-4ucation for the phototyp9setting and printing of this text. Thanks are also extended to Mary Kellum, MAVCC Curriculum Specialist,for her assistance with the editing of this book, as well as the coordination of the project. vii USE OF THIS PUBLICATION Instructional Units Basic Drafting contains eighteen units of instruction.Each instructional unit includes some or all of the basic components of a unit of instruction, performance objectives, suggested activities for teachers and students, information sheets, assignment sheets, job sheets, visual aids, tests, and answers to the tests.Units are planned for more than one lesson or class period of instruction. Careful study of each instructional unit by the teacher will help to determine: A. The amount of materia! that can be covered in each ciass period. B. The skills which must be demonstrated 1. Supplies needed 2. Equipment needed 3. Amount of practice needed 4. Amount of class time needed for demonstrations C. Supplementary materials such as pamphlets or filmstrips that must be ordered