Machine Design & Drawing 2

Course title

A0008000

	FUTAI Nobuyuki
	SAWA Takekazu
	SHIRAI Katsuaki
	TANGE Manabu
and more...
	IMAI Tatsuhiko
	KURIYAMA Fumio
	HOJO Keiji

Course description

To design a machine, one must determine structural members and their combined movement and forces by calculations based on theories in mechanical engineering. However, one must learn from the structure, function, machining, assembly methods, maintenance, etc., of machines developed by our many predecessors.
This course aims to review the rules of mechanical drawing and improve skills in drafting and modeling with 3D CAD software through practical design exercises. It also aims to acquire related knowledge, such as machine elements, machining methods, and machine materials, through designing actual machines.

Purpose of class

Acquisition of the rules of mechanical drawing specified in JIS, improvement of drafting and modeling skills, acquisition of knowledge of machine elements, machining methods, and machine materials.

Goals and objectives

To understand third angle projection and drawing rule of mechanical elements.
To learn machining and fabrication and calculate strength.
To read complicated drawings.
To learn how to design a mechanical system with 3D cad and spreadsheet software.

Relationship between 'Goals and Objectives' and 'Course Outcomes'

	Drawings/Reports	Midtem Exam	Final Exam	Total.
1.	10%	5%	1%	16%
2.	20%	3%	2%	25%
3.	20%	2%	2%	24%
4.	30%	0%	5%	35%
Total.	80%	10%	10%	-

Evaluation method and criteria

Requirement: Drawings/Reports 80%, Midterm exam 10％, Final exam 10%.
The distribution of each assignment: 20% for flanges, 30% for gear reducers, and 30% for jacks.

The final examination score is 60% or more, and the total score of the assignments must be 60% or more to pass the examination.

Criteria for 60% understanding:
The student should have a general understanding of the fundamentals of drafting and design methods, and be able to draw by the drafting methods. The student should be able to write logical reports containing mathematical and numerical formulas in general.

Language

Japanese

Class schedule

	Class schedule	HW assignments (Including preparation and review of the class.)	Amount of Time Required
1.	Introduction / Flange 1 - Mechanical Design with 3D CAD - CAD software setup, Basic 3D modeling	Review the lecture and conduct the drawing exerice	140minutes
2.	Flange 2 Tolerances: fitting (review) Surface roughness and edge tolerances Dimensioning, annotating, and completion of the drawing	Review the lecture and conduct the drawing exerice	140minutes
3.	Introduction: gear reducer 1 Intro to gear trains and reducer design One-feature (1F) modeling and assembly	Review the lecture and conduct the drawing exerice	140minutes
4.	Gear reducer 2: Design and keys and keyholes, Selection of bearings 1F modeling and assembly (cont'd)	Review the lecture and conduct the drawing exerice	140minutes
5.	Gear reducer 3: Part modeling and drawing	Review the lecture and conduct the drawing exerice	140minutes
6.	Gear reducer 4: Part modeling and drawing (cont'd)	Review the lecture and conduct the drawing exerice	140minutes
7.	Gear reducer 5: Completion of the drawing Mid-term Exam	Review the lecture and conduct the drawing exerice	140minutes
8.	Introduction/ car Scissor Jack 1 Material selection and strength evaluation Mechanism design	Review the lecture and conduct the drawing exerice	140minutes
9.	Car Scissor Jack 2 Design of screw rod, bracket, and pins. Design of arm, and handle. Completion of design report. 1F modeling and assembly	Review the lecture and conduct the drawing exerice	140minutes
10.	Car Scissor Jack 3 1F modeling and assembly (cont'd)	Review the lecture and conduct the drawing exerice	140minutes
11.	Car Scissor Jack 4 Part modeling and drawing	Review the lecture and conduct the drawing exerice	140minutes
12.	Car Scissor Jack 5 Part modeling and drawing	Review the lecture and conduct the drawing exerice	140minutes
13.	Car Scissor Jack 6 Part modeling and drawing (cont'd)	Review the lecture and conduct the drawing exerice	140minutes
14.	Car Scissor Jack 7 Completion of the drawing Final Exam	Review the lecture and conduct the drawing exerice	140minutes
Total.	-	-	1960minutes