Students in this course learn the basic rules of mechanical drawing and the basics of machine elements and mechanical drawing for expressing such machine and elements as the foundation of a series of design courses. They also learn the basics of drawing with CAD, and deepen their knowledge about machine drawing, and working with 3D printers, machine tools, and the like, in order to acquire knowledge and skills, which will be a foundation of overall design courses.
Dimensional tolerances, Geometric tolerance, Fitting and related standards, Basics of drafting tools and CAD software. Basics of machine elements such as fastening element, shaft element, transmission element.
By the end of this course, students will be able to:
1. Explain the basics of Mechanical Engineering Design and drawing through hand-drawing, and 2D, 3D-CAD of various machine elements. Understand functions, mechanics, work methods, materials of machine elements and manufacturing method of mechanical components.
2. Understand how to use drafting tools and CAD software. Basic rules such as dimensional tolerances, geometric tolerance, fitting and related standards can be explained through practice drafting trace of basic machine elements such as fastening element, shaft element, transmission element.
This subject corresponds to the learning objective of "1. [professional ability] basic expertise".
Machine Drawing, Machine Elements
|✔ Specialist skills||Intercultural skills||Communication skills||✔ Critical thinking skills||✔ Practical and/or problem-solving skills|
Students will be split into 3 groups, and will work on 3 large challenges, one topic every 2 weeks. Each week, the instructor will lecture on the function of machine elements, writing drawings, and various suggestions. On that basis, students will use drafters and CAD software in the second half to do practical work on mechanical drawings. Students will generally complete them during class time, and revise them appropriately based on instructor evaluations. These topics will be counted towards grade evaluations.
|Course schedule||Required learning|
|Class 1||Third angle projection, Fitting, geometrical tolerance, dimensional tolerance.||Draw a third angle projection of simple three dimensional shapes. Learn fundamental rules for mechanical engineering drawing based on JIS standard.|
|Class 2||Learn the drawing method using CAD (Computer-aided drafting).||Examine basic rules for machine elements and mechanical engineering drawings.|
|Class 3||Fastening elements||Learn fastening elements such as screw and nut.|
|Class 4||Drawing for screw parts.||Make a mechanical engineering drawing of screw and nut.|
|Class 5||Shaft element||Learn dimensional tolerance for drawing of the shaft.|
|Class 6||Drawing of a shaft||Draw a mechanical engineering assembly drawing of the shaft and bearing.|
|Class 7||Sealing elements||Learn the function, form, material, and surface roughness on seal elements.|
|Class 8||Transfer elements||Learn functions, processing methods, and geometrical tolerance of gear as a power transmission device.|
|Class 9||Spur gear||Draw a mechanical engineering drawing of a spur gear by 2D-CAD.|
|Class 10||Packing gland||Draw a mechanical engineering drawing of a packing gland by 2D-CAD.|
|Class 11||Power transmission elements||Learn the function of a pulley.|
|Class 12||Technical drawing of a power transmission device||Learn the drawing method of 3D-CAD. And draw a mechanical engineering drawing of a pulley by 3D-CAD.|
|Class 13||Rapid prototyping||Learn relationships and cooperation between 3D-CAD and 3D printer and machining tools.|
|Class 14||Technical drawing of a power transmission device||Draw an assembly drawing of the crank mechanism by 3D-CAD.|
To enhance effective learning, students are encouraged to spend a certain length of time outside of class on preparation and review (including for assignments), as specified by the Tokyo Institute of Technology Rules on Undergraduate Learning (東京工業大学学修規程) and the Tokyo Institute of Technology Rules on Graduate Learning (東京工業大学大学院学修規程), for each class.
They should do so by referring to textbooks and other course material.
Basic mechanical design and drafting (in Japanese): Tsukada Tadao, Mathematical Engineering, Inc.
An auxiliary text (distribution)
Download from OCW-i. Printed materials will be provided if needed.
Class participation, Mechanical drawing practice, and Submission of assignments.
When using 3D-CAD software (Inventor), be sure to bring your own notebook PC with the following specifications.
* How to install Inventor
Please refer to the PDF manual of "Inventor Student Installation Manual".
Model: Laptop PC required. (Not tablet type)
OS: Windows 10 64bit required. (MacOS, LINUX not available)
CPU: Core i3 or higher. Equivalent AMD is also possible.
GPU: CPU integration is sufficient.
Memory: 8GB or more.
Storage: 250GB or more. SSD recommended.
・ Please note that those who forget to bring their notebook PCs cannot take the class.
・ If you cannot prepare the above PC, please contact the faculty by the second week of April.
・ Inventor is not supported on the Mac OS.
-If the installation of Inventor on your notebook PC fails, please contact the instructor (firstname.lastname@example.org) immediately by e-mail.
-The HDMI output is required. (Conversion with an adapter is also possible)
* For students belonging to the former department or other students who cannot afford a computer, please contact the instructor.