TA 101: Technical Arts 2015-16 II Dr. Prishati Raychowdhury Department of Civil Engineering IIT...
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![Page 1: TA 101: Technical Arts 2015-16 II Dr. Prishati Raychowdhury Department of Civil Engineering IIT Kanpur Office: FB 336; Phone: 6692 E-mail: prishati@iitk.ac.inprishati@iitk.ac.in.](https://reader037.fdocuments.net/reader037/viewer/2022102801/5697c02a1a28abf838cd7fd9/html5/thumbnails/1.jpg)
TA 101: Technical Arts2015-16 II
Dr. Prishati Raychowdhury
Department of Civil EngineeringIIT Kanpur
Office: FB 336; Phone: 6692E-mail: [email protected]
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Why to learn Technical Art? Can you describe this object in words to someone so
that they can manufacture it?
Diesel Engine Block (4-Cylinder)
Not easy!
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A Machine
www.excelfibre.com, www.rijo42.co.uk, blog.pactapp.com
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A Toy
http://www.ebay.com/gds/Ride-on-Toy-Train-Buying-Guide-/10000000178706250/g.html
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A Building
P. K. Kelkar Library, IITK
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A Bridge
Howrah Bridge
http://www.thousandwonders.net/Howrah+Bridge
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A Bridge
Golden Gate Bridge
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A Dam
Hoover Damhttp://wall.alphacoders.com/big.php?i=553442
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Urban Infrastructure
https://www.flickr.com/photos/fangwei/8288204632/
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DESIGNERS may have been a single person or a team of few
Design had to be COMMUNICATED to those building it (BUILDER/MANUFACTURERS)
COMMUNICATION could have been possible only through ‘SKETCHES’ or ‘DRAWINGS’
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Goal of Engineering Drawing• To convey all the required information that will allow
a manufacturer to manufacture a product
A good drawing should..• Include information about a product on its geometry,
dimension, material, finishing, and any other details necessary to produce the object
• Be unambiguous, complete, suitable for duplication, language independent, and conforms to standards
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History of Technical Drawing Monge was a French mathematician
and served as the Minister of the Marine during the French Revolution
He was the inventor of descriptive geometry (or Technical Drawing/ Drafting)
Pictures, sketches were used to communicate but there were no uniformity
Architects, builders, engineers, designers had difficulty in understanding figures
Monge formalized the TECHNICAL DRAWINGS, what we know as ORTHOGRAPHIC PROJECTIONS
Gaspard Monge (1746-1818)
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TA 101: Course Objective
To learn the fundamentals of Technical Drawing in THEORY and PRACTICE using:
Free hand sketchingDrafting with help of hand-held drafting toolsComputer Aided Drafting (AutoCAD)
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When and Where?
• Lecture: T 3-4 pm, L-7Th 2-3 pm, L-7
• Lab: M-Th 10 am – 1 pm, Northern lab, Drawing hall
o The class has been divided into twelve batches B1 to B12 (~35 each)
o Check DoAA web-site (or OARS) for your batcho Each batch has a tutor (faculty/Ph.D. student) and two
teaching assistants (M.Tech/PhD/Dual-Degree students)o Tutor is your first contact person
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Tutors
SL. No.
Section Tutor Dept Email Tel. Office Location
1 Ms. Nidhi Sharma AE [email protected]
2 Mr. Subhabrata Koley AE [email protected]
3 Mr. Sarthak Sambit Singh AE [email protected]
4 Mr. Yasar Arafath AE [email protected]
5 Dr. Mukesh Sharma CE [email protected] 7759 WLE 3026 Dr. Tarun Gupta CE [email protected] 7128 FB 3107 Dr. Ashu Jain CE [email protected] 7411 FB 3158 Dr. Ashish Dutta ME [email protected] 7562 FB 3389 Dr. Ishan Sharma ME [email protected] 6152 NL 102
10 Dr. B L Sharma ME [email protected] 6173 FB 35611 Mr. Rahul Oarath ME [email protected]
12 Dr. Amritanshu Sriwastava CE [email protected]
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Course Outline
Week Lecture Lab Assignments Home Assignments1 Lettering and construction None None
2 Orthographic projections Lettering and construction None
3 Orthographic projections with dimensioning Orthographic projections Lettering and construction
4 Isometric views and projection Orthographic projections with dimensioning Orthographic projections
5 Pictorial views Isometric views and projection Orthographic projections with dimensioning
6 Missing views and lines Pictorial views Isometric views and projection
7 Sectional views Missing views and lines Pictorial views
8 Perspective views Sectional views (AUTOCAD) Missing views and lines
9 Lines and planes 1 Perspective views Sectional views
10 Lines and planes 2 Lines and planes 1 Perspective views
11 Auxiliary views Lines and planes 2 Lines and planes 1
12 Intersection of solids Auxiliary views Lines and planes 2
13 Development of surfaces Intersection of solids Auxiliary views
14 Review Development of surfaces Intersection of solids
Total LA = 13 Total HA = 12Total Lecture = 27
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January 2016 CalendarMonday Tuesday Wednesday Thursday Friday Saturday Sunday
31 LECTURE 1
2.00-3.00 PM (L7)
1LECTURE 2
EXTRA CLASS 5 – 6 PM (L7)
2 3
4 5LECTURE 3
3.00-4.00 PM (L7)
6 7LECTURE 4
2.00-3.00 PM (L7)
8 9 10
11 12LECTURE 5
3.00-4.00 PM (L7)
13 14LECTURE 6
2.00-3.00 PM (L7)
15 16 17
18 19LECTURE 7
3.00-4.00 PM (L7)
20 21LECTURE 8
2.00-3.00 PM (L7)
22 23 24
25 26REPUBLIC DAY
27 28LECTURE 9
2.00-3.00 PM (L7)
29MAKE-UP LAB FOR TUESDAY BATCHES
30 31
LAB 1 (LETTERING AND CONSTRUCTION) 10.00 AM-1.00 PM
LAB 2 (ORTHOGRAPHIC PROJECTION) 10.00AM-1.00PM
LAB 3 (ORTHOGRAPHIC PROJECTIONS WITH DIMENSIONS)
LAB 4 (ISOMETRIC VIEWS AND PROJECTION) 10.00AM-1.00PM
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February 2016 CalendarMonday Tuesday Wednesday Thursday Friday Saturday Sunday
1 2 LECTURE 10
3.00-4.00 PM (L7)
3 4 LECTURE 11
2.00-3.00 PM (L7)
5 6 7
8 9 LECTURE 12
3.00-4.00 PM (L7)
10 11 LECTURE 13
2.00-3.00 PM (L7)
12 13 14
15 16 17 18 19 20 21
22 23 LECTURE 14
3.00-4.00 PM (L7)
24 25 LECTURE 15
2.00-3.00 PM (L7)
26 27 28
29
MID SEMESTER EXAMINATION
LAB 5 (PICTORIAL VIEWS) 10.00AM-1.00PM
LAB 7 (SECTIONAL VIEWES, AUTOCAD) 10.00AM-1.00PM
LAB 6 (MISSING LINES & VIEWS) 10.00AM-1.00PM
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March 2016 CalendarMonday Tuesday Wednesday Thursday Friday Saturday Sunday
29 1 LECTURE 16
3.00-4.00 PM (L7)
2
3 LECTURE 17
2.00-3.00 PM (L7)
4 5 6
7 8LECTURE 18
3.00-4.00 PM (L7)
9 10LECTURE 19
2.00-3.00 PM (L7)
11 12 13
14 15LECTURE 20
3.00-4.00 PM (L7)
16 17LECTURE 21 2.00-3.00 PM (L7)
18 19 20
21 22 23 24 HOLI
25 GOOD FRIDAY
26 27
28 29 LECTURE 22
3.00-4.00 PM (L7)
30 31LECTURE 23
2.00-3.00 PM (L7)
MID SEMESTER RECESS
LAB 8 (PERSPECTIVE VIEW) 10.00AM-1.00PM
LAB 9 (LINES AND PLANES 1) 10.00AM-1.00PM
LAB 10 (LINES AND PLANES 2) 10.00AM-1.00PM
LAB 11 (AUXILLIARY PLANE) 10.00 AM-1.00 PM
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April 2016 CalendarMonday Tuesday Wednesday Thursday Friday Saturday Sunday
1 2 3
4 5LECTURE 24
3.00-4.00 PM (L7)
6 7LECTURE 25
2.00-3.00 PM (L7)
8 9 10
11 12LECTURE 26
3.00-4.00 PM (L7)
13 14LECTURE 27 2.00-3.00 PM (L7)
15 RAM NAVAMI
16 17
18 19 20 MAHAVIR JAYANTI
21 22 23 24
25 26 27 28 29 30 31
END SEMESTER EXAMINATION
LAB 12 (INTERSECTION OF SOLIDS) 10.00AM-1.00PM
LAB 13 (DEVELOPMENT OF SURFACES) 10.00AM-1.00PM
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Important Note !!
• Tomorrow we have an extra class • Time: 5-6 pm• Venue: L-7
After each class, lecture notes will be posted in my homepage: http://home.iitk.ac.in/~prishati/TA101.htm
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Things you need to purchase
• The “Instruction Manual” containing general instructions, and lab and homework problems available at COPY POINT at Shopping Center
• The instruments and materials listed in the Instruction Manual
• Sketch-book for free-hand sketching and preparing solutions to lab & HW problems
(Noble Bookstore, Tarun Bookstore or Copy Point)
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Drawing Instruments• A good quality drafter• A large compass (150 mm), a bow compass with adjusting
screws (100 mm)• A large divider, a bow divider with adjusting screws (100 mm)• A pair of set squares: 45°-45°, 30°-60° (250 mm, 2.5 mm thick)• A protractor• A ruler, 300 mm (steel or hard plastic)• Good quality drawing pencils (2H, H, HB)• A sharpener, a good quality eraser, a clean soft cloth, and a
sticking tape• A notebook containing A4 size graph sheets, plain sheets, and
isometric grid sheets• Regular drawing sheets (A3 size)
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Drawing Instruments
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Drawing Pencils
SOFT
HARD
MEDIUM
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Drawing Sheets
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Important Note
• All labs on A3 DRAWING SHEETS (unless specified otherwise)
• All homework on A3 drawing sheets (unless specified otherwise)
• All sketches in TA101 Sketchbook
• GRID BOOK for proportional sketches
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Important Note Prepare well for the laboratory sessions in advance Sketch free-hand solution to the problems (use graph
sheet/sketch book) before going to the laboratory session
You need to submit this rough sketch along with your lab sheet at the end of each laboratory session (and this will carry weightage)
If you miss a lab for a valid reason (proper justification required), you can do a make-up lab with any other section on the same week
Once the solutions are posted, late submissions or make-up labs will NOT be permitted
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BookTEXT BOOKSFrench, T. E., Vierck, C. J., Foster, R. J., Engineering Drawing and
Graphic Design. Tata McGraw-Hill Edition, Fourteenth Edition, 2012.
(Original edition: McGraw-Hill Book Company New York, Fourth Edition, 1984 : Available in Library)
Bhatt, N. D., Elementary Engineering Drawing, Charoter Publishing, Anand, Thirty First Edition, 1990.
REFERENCE BOOKLuzadder, W. J., Duff, J. M., Fundamentals of Engineering
Drawing, Prentice-Hall India, New Delhi, Eleventh Edition, 1983.
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Grading Policy
Item Weight
Home assignment 10%
Lab assignment (including preparation) 25%
Mid-semester examination 25%
End-semester examination 40%
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Drawing Basics
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Types of Lines
Object/Dimension
Construction/Projection
Hidden
Centerline
Hinge line
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Object Lines and Hidden Lines
Object LineHidden Line
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Center Lines
Center Lines
Used to show centers of circles and arcs and to show the center of axis of circular or symmetrical forms
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Construction Lines
ConstructionLines
(Light)
IMPORTANT NOTE: Object lines and construction lines should always be distinguishable You may use H for object lines and 2H for construction lines You should NOT erase the construction lines after drawing (in this course)
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Lettering
‘Lettering’ is used to describe the size and other information necessary to manufacture the designed object
Principles of Lettering:• Each letter must be distinct• The vertical axes passing through all letters are parallel. No
slant!• Each letter is made up of a series of single strokes• Judging by the eye, the distance between the letters should
be approximately equal• Engineering lettering is commonly UPPERCASE• Use H Pencil for Letters and Number
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Lettering
• May use guiding lines initially– Eventually should avoid using guiding lines
A a
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Lettering: Acute Angle Stroke
Stroke the pencil in the acute angle direction. This will save the paper from tearing
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Lettering: Pencil Strokes
A
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Lettering: Pencil Strokes
![Page 42: TA 101: Technical Arts 2015-16 II Dr. Prishati Raychowdhury Department of Civil Engineering IIT Kanpur Office: FB 336; Phone: 6692 E-mail: prishati@iitk.ac.inprishati@iitk.ac.in.](https://reader037.fdocuments.net/reader037/viewer/2022102801/5697c02a1a28abf838cd7fd9/html5/thumbnails/42.jpg)
Lettering: Pencil Strokes
![Page 43: TA 101: Technical Arts 2015-16 II Dr. Prishati Raychowdhury Department of Civil Engineering IIT Kanpur Office: FB 336; Phone: 6692 E-mail: prishati@iitk.ac.inprishati@iitk.ac.in.](https://reader037.fdocuments.net/reader037/viewer/2022102801/5697c02a1a28abf838cd7fd9/html5/thumbnails/43.jpg)
Lettering: Pencil Strokes
![Page 44: TA 101: Technical Arts 2015-16 II Dr. Prishati Raychowdhury Department of Civil Engineering IIT Kanpur Office: FB 336; Phone: 6692 E-mail: prishati@iitk.ac.inprishati@iitk.ac.in.](https://reader037.fdocuments.net/reader037/viewer/2022102801/5697c02a1a28abf838cd7fd9/html5/thumbnails/44.jpg)
Why to take so much trouble?
• Drawings made in one country may be used for manufacturing parts or assembly in another country !
• Need for STANDARDS ! (BIS, DIN, JIS, ASTM …)
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Drawing a perpendicular
L
Q
L
Q
R
R1 R1
Point not on a line
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Perpendiculars to and from a line
Point on a line
LQ
R
R1 R1
R
LQ
C
A
M
R
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Arc tangents to lines and arcs
R1 R2
R1 + RR2 + R
R1 R2R – R1
R – R2
R
R
L
L‘R
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Line and angle bisectors
L
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Dividing a line into several segments
L
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Acknowledgement
• Prof. N. N. Kishore, ME• Prof. Anupam Saxena, ME• Prof. Ashish Dutta, ME• Prof. Vinod Vasudevan, CE• Prof. Tarun Gupta, CE• Mr. Ashwani Kumar, ME• TAs and Tutors of TA 101
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Wish You a Happy and Prosperous New Year..