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เนื้อหาย่อ : A workbook on engineering drawing was prepared to accompany "The Fundamentals of Engineering Drawing" textbook by Assoc. Prof. Staporn Suprichakorn. The aim of the book is to fulfill students' skill in writing a working drawing, pictorial sketching and interpreting a drawing. Most of the problems are taken from several textbooks on engineering drawing; however, they are redrawn using format suggested in the textbook. This workbook contains 10 chapters:- lettering, using traditional drawing instruments, applied geometry, orthographic writing, dimensioning, section view. threaded fasteners, assembly drawing, pictorial sketching and interpreting engineering drawing. Practicing can be done by using traditional drawing tools or freehand sketch. For the latter case, a sheet with rectangular grid is provided to help student to draw lines or curves. The problems are arranged on a page sequence that will facilitate the students who prefer to make a drawing on this workbook. However. students can work on a separated paper or on any commercially available CAD software. The author has put a technical note on some problems. These notes aim to help students understand the difference between engineering drawing and artist picture. The engineering drawing has a purpose of transferring information from designer via graphic and word languages to the manufacturer clearly and concisely. Therefore, it should be drawn by following the common rules that can be understood worldwide. The author would like to acknowledge Assoc. Prof. Dr. Chairote Kunpanitchakit, Assoc. Prof. Staporn Suprichakorn and Assist. Prof. Dr. Pairod Singhatanadgid for their kindly helps in correcting the manuscript, as well as giving many useful suggestions. The author would like to thank Mr. Nopparat Katkhaw for preparing and correcting several problems in the chapters on orthographic writing, section. and assembly drawing. Lastly, the author would like to acknowledge the mechanical engineering department for a financial support in publishing this book.