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Engineering Drawing ME 111 1-0-3-
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Instructors: Dr. Sreeja P. (CE),
Dr. S. Senthilvelan (ME) and
Dr D. Sharma (ME)
Course Credits
- 1-0-3-
- 1: One lecture per week. However, we need more lectures per week for better understanding of this course
- 0: No tutorial
- 3: one lab of three hours
- 5: Total credits for this course
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Course Information
- Lectures
- FN (D slot) Division I by Dr. S. Senthilvelan (ME) and
Division II by Dr. Sreeja P. (CE)
- Lecture scheduleLecture scheduleLecture scheduleLecture schedule: Monday: 11-11:55AM, Thursday: 9-9:55AM, Friday: 10-10:55AM
- VenueVenueVenueVenue: Lecture Hall – L1 (Div I ), and L2 (Div II)
- AN (D1 slot) Divisions III by Dr. D. Sharma (ME) and
Division IV by Dr. Sreeja P. (CE)
- Lecture scheduleLecture scheduleLecture scheduleLecture schedule: Monday: 2-2:55PM, Thursday: 4- 4:55PM, Friday: 3-3:55PM
- VenueVenueVenueVenue: Lecture Hall – L1 (Div III), and L2 (Div IV)
- Lecture slides
- On moodle under “Mechanical Engineering”.
- The course name is “Engineering Drawing 2014” and password is“ed2014”.
- For first two weeks only, the slides will also be available at “http://shilloi.iitg.ernet.in/~dsharma/me111.html” (^) 3
Lab Sessions
- Drawing halls: 1205 and 1206, Core 1
- Tables in both drawing halls will be arranged with registration number on it.
- Details of seating arrangement will be uploaded on http://shilloi.iitg.ernet.in/~dsharma/me111.htm l (^4)
FN Lab session (9-12noon) AN Lab session (2-5PM)
ME111 (L8) ME111 (L3)
ME111 (L6) ME111 (L1)
ME111 (L9) ME111 (L4)
ME111 (L7) ME111 (L2)
ME111 (L10) ME111 (L5)
A new machine, structure, product must exist in the mind of the engineers before it can become a reality.
- Original concept or idea is usually placed on paper or as an image on a computer screen and,
- Communicated to others by way of the graphic language in the form of freehand sketches.
- These free hand sketch are followed by other, more exact, sketches as the idea is developed more fully. The engineer must understand how to read and write in the graphic language
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Engineers must be able to create idea sketches, calculate
stresses, analyze motions, size parts, specify materials and
production methods, make design layouts and supervise
the preparation of drawings and specifications that will
control the numerous details of product manufacture,
assembly and maintenance
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Drawing is a graphic representation of:
- a real thing,
- an idea or,
- a proposed design for later manufacture or construction.
Graphic representation:
- Artistic: to express aesthetic, philosophic or other abstract ideas
- Technical: to represent the design of objects to be built or constructed
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Early Technical Drawing
Leonardo’s Canon Foundry 1500 AD
Water lifting device 1488 Design for a Flying Machine^14
- For any product design or development, graphical language is always required with technical knowledge - Today the intimate connection between engineering and science, and the universal graphic language is more vital that even before
- Artistic talent is no longer a prerequisite to learning the fundamentals of the graphic language. - Instead today’s graphics student needs the same aptitudes, abilities and computer skills that are needed in science and engineering courses
- A well trained engineers must be able to make and read correct graphics representations of engineering structures, designs and data relationships. - Understand the fundamental principles or the grammar of the language and be able to execute the work with reasonable skill
What Engineering Students Should Know?
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- Students will learn the meaning of neatness, speed, and accuracy for the first time in a drawing course. These are basic and necessary habits for every successful engineer
- The ability to think in three dimensions
- Learning to visualize objects in space, to use the constructive imagination is one of the principal values to be obtained from a study of the graphic language
What Engineering Students Should Know?
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Syllabus: Importance of engineering drawing; Conventions and standards: ISO; Scales; Curves; Orthographic projections: points, lines, planes and solids; Sections of solids; Isometric projections; Development of surfaces; Intersection of solids
Texts: N. D. Bhatt, Engineering drawing, Charotar Publishing, 50th^ Edition, 2011 Dhananjay A. Jolhe, Engineering Drawing, Tata McGraw Hill, M. B. Shah and B. C. Rana, Engineering Drawing, 2nd^ Ed., Pearson Education,
References: T E French, C J Vierck and R J Foster, Graphic Science and Design,4th^ Ed., McGraw Hill, W J Luzadder and J M Duff, Fundamentals of Engineering Drawing,11th^ Ed., PHI, K Venugoapl, Engineering Drawing and Graphics,5th^ Ed, New Age International,
Engineering Drawing ME 111 1-0-3-
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50 % Lab sessions
20 % Mid-semester exam (20th^ September 2014)
30 % End-semester exam (08th^ and 09th^ November 2014)
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Weightage
Normalization a. Group wise for lab sessions. b. Session wise for end semester exam.
Lab sessions
- Common questions will be discussed in the lecture.
- Sheets will be graded out of 100 marks.
Lab No Topic 1 Lettering, Dimensioning and Engineering Curves: Parabola, Ellipse Hyperbola, Cycloids and Involutes 2 Scales: Plain, Vernier and Diagonal scales 3 Orthographic projections: 4 Projection of straight lines I: Lines inclined to any one of the plane 5 Projection of straight lines II : lines inclined to both HP and VP., traces 6 Projection of solids I : Projections of solids in simple positions 7 Projection of solids II: Solids inclined in to one and both the planes 8 Sections of solids : Section of standard solids and True shape Section of standard machine elements 9 Development of surfaces : Development of standard solids full and sectioned solids 10 Isometric projections : Isometric projections of simple solids, simple and complex positions
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Lead Grade Sheet
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Prerequisite For Engineering Drawing
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Prerequisite For Engineering Drawing
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Prerequisite For Engineering Drawing
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Basic Strokes
Straight Slanted Horizontal Curved
1 1 2
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“ I ” letter “ A ” letter 1
2
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4 5
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“ B ” letter
Examples
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Height and Width of Letters
- BIS (SP 46: 2003) has recommended the heights of letters as:
- 1.8 mm, 2.5 mm, 3.5 mm, 5 mm, 7 mm, 10 mm, 14 mm and 20 mm.
- Large-sized letters are used for main titles and headings,
- Medium-sized letters for subtitles and important notes and
- Small-sized letters for dimensions and general notes.
- The height-to-width ratio varies from letter to letter. Most of the letters follow the ratio 7 : 5 or 7 : 6.
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Vertical Capital Letters and Numerical 33
Vertical Lowercase Letters
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Graphic Language in Engineering Drawing
“Engineering drawing” or “blueprint” uses llinesines to
represent the featuresfeatures of an object.
Features of an object are surfacesurface (include planeplane ) and
edgeedge.
Surface Edge
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Lines
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Lines
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