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メディア授業とは，メディアを利用して遠隔方式により実施する授業の授業時数が，総授業時数の半数を超える授業をいいます。
メディア授業により取得した単位は，卒業要件として修得すべき単位のうち60単位を超えないものとされています。
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This course teaches mechanical drafting techniques through lectures and practical exercises. Students will learn the essential rules for creating technical drawings that comply with international standards. Key topics include how to specify tolerances and surface characteristics on drawings to meet design functions and requirements. Through hands-on practice, students will gain a solid understanding of mechanical drafting fundamentals by creating technical drawings of various mechanical components, such as bolts, nuts, and gears. By the end of the course, students will challenge themselves with the drafting of a complex mechanical device: a gear pump.
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Develop a proper understanding of the rules of mechanical drawing based on international standards (JIS) and acquire the ability to accurately represent design intentions, such as tolerances and surface characteristics, in technical drawings. Students will also learn to interpret and communicate the information conveyed in drawings correctly.
Gain the skills to calculate, analyze, identify errors, correct, and represent critical design information, such as planar features, geometric tolerances, and gear modules, following drafting principles. Furthermore, students will learn to decompose three-dimensional shapes into two-dimensional drawings with manufacturing considerations and assess for completeness and accuracy.
Cultivate an interest in everyday mechanical devices, such as automobiles, bicycles, and vacuum cleaners, and deepen their enthusiasm and motivation for mechanical engineering by understanding how specialized knowledge in the field translates into tangible products through drafting.
Understand the potential impacts and outcomes of insufficient, unclear, or misleading technical drawings, and develop a mindset to create clear, accurate, and easily understandable drawings that convey correct information effectively.
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The course begins with lecture sessions to understand the principles of mechanical drafting in compliance with international standards (JIS). This is followed by practical exercises where students apply the learned drafting methods through hands-on drawing practice.
Mechanical drafting involves numerous rules, such as the process of converting three-dimensional objects into two-dimensional representations, methods for expressing design functions, and techniques for specifying tolerances and surface characteristics. While mastering these concepts requires time and effort, students can progress step by step.
To ensure success, active participation in both lectures and exercises is essential. Make sure to attend regularly and engage fully in the practical sessions to avoid falling behind.
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第1回
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Orientation, explanation of JIS Mechanical Drawing Method (terminology, lines, etc.)
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Students will learn the basic terminology, types and meanings of lines used, and drafting methods based on JIS in the classroom.
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第2回
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third angle projection
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Students learn about the third-angle projection method, which represents a three-dimensional object as a two-dimensional object, in the classroom, and practice drafting it through drawing exercises.
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第3回
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Projection diagram, section diagram, omission method, inertia diagram method
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Students learn how to represent the interior of an object as a cross-section and how to abbreviate objects, and then draw them through drafting exercises.
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第4回
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Projection diagram, section diagram, omission method, inertia diagram method No.2
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Continue from the previous week.
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第5回
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dimensioning
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How should we fill in the dimensions necessary to represent the shape? The students will learn how to fill in the dimensions necessary to represent a shape in a classroom lecture, and then draw a shape through drafting exercises.
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第6回
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Dimensional tolerances, normal tolerances, geometric tolerances
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How should the tolerances allowed for dimensions be expressed? What is the geometric positional relationship? The students will learn about these questions in class, and then draw them through drafting exercises.
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第7回
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Surface Property Symbols and Material Symbols, etc.
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How can surface properties such as roughness of an object's surface be expressed? The students will learn how to describe surface properties such as surface roughness of an object in a classroom lecture, and then draw a drawing through drafting exercises.
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第8回
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Surface Property Symbols and Material Symbols, etc. No. 2
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Complete the previous week's drawings.
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第9回
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Machine parts ① Screws
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How should hexagonal bolts, nuts, and threaded holes be represented? The students will learn how to represent hexagonal bolts, nuts, and threaded holes in classroom lectures, and then draw them through drafting exercises.
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第10回
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Welding Symbols and Material Notation
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Students will learn about joints and welding methods when joined by welding, and how to describe the material of an object in lectures and exercises.
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第11回
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Machine parts (2) Gears, bearings, etc.
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Students will learn how gears and bearings are represented in lectures and practice in exercises.
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第12回
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Mechanical parts (3) Gear pumps
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Students will learn how to draw a machine consisting of multiple parts using a gear pump as a subject in lectures and practice in exercises.
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第13回
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Mechanical parts ③ Assembly drawing of gear pump
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Students will learn how gear pumps function and how tolerances are designed and expressed in terms of function through lectures and exercises.
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第14回
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Learning from standard drawings in textbooks and advanced application exercises
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Applied drafting exercises will be conducted using standard drawings such as pulleys and shafts provided in the appendix.
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第15回
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Learning from standard drawings in textbooks and advanced application exercises ver2
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Applied drafting exercises will be conducted using standard drawings such as gear systems provided in the appendix.
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第16回
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supplementary classes or lectures
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Applicants will be notified.
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※AL（アクティブ・ラーニング）欄に関する注
・授業全体で、AL（アクティブ・ラーニング）が占める時間の割合を、それぞれの項目ごとに示しています。
・A〜Dのアルファベットは、以下の学修形態を指しています。
【A：グループワーク】、【B：ディスカッション・ディベート】、【C：フィールドワーク（実験・実習、演習を含む）】、【D：プレゼンテーション】
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A: 20% B: 30% C: 50% D: --%
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Evaluation will be based on the completeness and submission of the required drawings. Attendance is treated as a disqualifying condition.
Students will receive a failing grade if they have four or more unexcused absences or if any of the mandatory drawings are not submitted.
Attendance:
Disqualifying condition
Class attitude and participation:
Disqualifying condition
Quizzes and mandatory assignments:
60%
Challenge assignments and homework:
40%
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（注）ルーブリックとは、評価水準である「尺度」と、尺度を満たした場合の「特徴の記述」で構成される評価指標のことを言います。
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備考
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This book is a good guide for those who need to refer to the JIS standards for actual drafting.
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備考
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This book is a good guide for those who need to refer to the JIS standards for actual drafting. The following reference books do not need to be purchased, but the School of Engineering Library has several copies available for those who wish to learn more about applications.
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Drawings based on international standards function as a kind of "language" that conveys not only shapes but also accuracy and design functions. Drafting rules are as important as grammar in language, so let's learn how to use them correctly.
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Mechanical drawing method, standard drawing method, JIS, international specifications, dimensional tolerances, geometric tolerances, surface properties, mechanical part drawings, practical instructors
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| (貧困)あらゆる場所のあらゆる形態の貧困を終わらせる。 |
| (飢餓)飢餓を終わらせ、食料安全保障及び栄養改善を実現し、持続可能な農業を促進する。 |
| (水・衛生)すべての人々の水と衛生の利用可能性と持続可能な管理を確保する。 |
| (エネルギー)すべての人々の、安価かつ信頼できる持続可能な近代的エネルギーへのアクセスを確保する。 |
| (持続可能な都市)包摂的で安全かつ強靱（レジリエント）で持続可能な都市及び人間居住を実現する。 |
| (持続可能な生産と消費)持続可能な生産消費形態を確保する。 |
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Basic Training on Mechanical Drawing 2, Machine Design
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Koga at yamaguchi-u.ac.jp
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