TA 101N TA 101N TA 101N TA 101N Engineering Graphics Engineering Graphics 2010 2010-11 11-II II Dr. Ashu Jain, Professor Dr. Ashu Jain, Professor Department of Civil Engineering Department of Civil Engineering Department of Civil Engineering Department of Civil Engineering IIT Kanpur, Kanpur 208 016 IIT Kanpur, Kanpur 208 016 R N R N FB307 Ph FB307 Ph 7411 7411 Room No. Room No. - FB307; Phone FB307; Phone – 7411 7411 E-mail: [email protected]mail: [email protected]
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TA 101NTA 101NTA 101NTA 101NEngineering GraphicsEngineering Graphics
20102010--1111--IIII
Dr. Ashu Jain, ProfessorDr. Ashu Jain, ProfessorDepartment of Civil EngineeringDepartment of Civil EngineeringDepartment of Civil EngineeringDepartment of Civil Engineering
TA101: Engineering GraphicsTA101: Engineering Graphics• The course will consist of two lectures, one
di i h d l b i kdiscussion hour, and a lab session per week.• Since it is a practice-oriented course, you are
encouraged to attend all classes, labs, and submitencouraged to attend all classes, labs, and submit all HWs.
• Utilize Discussion hour effectively to clarify d b ifdoubts, if any.
• The class has been divided into fourteen (14) sections F1 to F14 (~35 each)sections F1 to F14 (~35 each).
• Check DoAA web-site for your section.
TIME TABLETIME TABLELectures
Mondays & Fridays
10:00 - 10:55 L7
TB101 TB112Discussions Wednesdays 10:00 - 10:55
TB101-TB112TB201-TB202
Mondays: F1 F2 F3 14:00 17:00
Laboratory
Mondays: F1, F2, F3 14:00 - 17:00
Drawing Halls
Tuesdays: F10, F11, F12 14:00 - 17:00
W d dSessions Halls
Wednesdays:
F4, F5, F6, F13, F14 14:00 - 17:00
Thursdays: F7 F8 F9 14:00 17:00
•• If a laboratory session falls on a holiday, the lab may be held If a laboratory session falls on a holiday, the lab may be held
Thursdays: F7, F8, F9 14:00 - 17:00
either on Friday or on Saturday of the same week in either on Friday or on Saturday of the same week in consultation with the tutor.consultation with the tutor.
PurchasePurchase• The “Instruction Manual” containing general g g
instructions, and lab and homework problems available at COPY POINT-Shop C. p
• The instruments and materials listed in the “Instruction Manual”.Instruction Manual .
• Sketch-book for free-hand sketching and preparing solutions to lab & HW problemspreparing solutions to lab & HW problems.
BooksBooksTEXT BOOK[1] F h T E Vi k C J F t R J G hi S i d D i[1] French, T. E., Vierck, C. J., Foster, R. J., Graphics Science and Design.
McGraw-Hill Book Company New York, Fourth Edition, 1984.
REFERENCE BOOKS[1] Luzadder, W. J., Duff, J. M., Fundamentals of Engineering Drawing,
Prentice-Hall India, New Delhi, Eleventh Edition, 1983.[2] Bethune, J. D., Engineering Graphics with AutoCAD, Prentice-Hall,
Englewood Cliffs, First Edition, 1995.[3] Bhatt, N. D., Elementary Engineering Drawing, Charoter Publishing, [ ] y g g g g
id ( h h )Mid Sem-I Exam: 16% (Note the change)Mid Sem-II Exam: 16% (Note the change)S % ( g )End Sem Exam: 48% (Note the change)Note: HWs will be due in the discussion hour of the same week In case of aNote: HWs will be due in the discussion hour of the same week. In case of a
holiday, HW may either be submitted during the lab session of the same week, or at tutor’s office/mailbox the following day (Thursday), or at tutor’s office/mailbox on a mutually convenient day.tutor s office/mailbox on a mutually convenient day.
List of TutorsList of TutorsS. No. Name of Tutor Dept. Contact Section
1 Prof P K Bas dhar CE FB335; 7029; pkbd F141 Prof. P. K. Basudhar CE FB335; 7029; pkbd F142 Prof. S. K. Chakraborty (1/2) CE WSII; 7173; chakra F33 Prof. Purnendu Bose CE WLE304; 7403; pbose F44 Prof. Priyanka Ghosh CE FB309; 7022; priyog F55 Prof. Debajyoti Paul (9455 51 1378) CE WLE303; 6169; dpaul F116 Prof. Shivam Tripathi (1/2) CE WS-II/6; 6709; shiva F37 Prof. Ashish Dutta ME FB338; 7562; adutta F128 Prof Bishakh Bhattacharya (6617 7509) ME NL101 Vibr Lab; 7824; bishakh F98 Prof. Bishakh Bhattacharya (6617, 7509) ME NL101 Vibr Lab; 7824; bishakh F99 Mr. Ravi Dalmeya/Rituparno Datta ME 9336 44 5245; rdalmeya/rdatta F7
10 Ms. V. Sudarkodi ME 9936 33 5510; sudar F211 Prof. Kunal Ghosh AE AE15; 7072; kunal F1012 Prof. D. Yadav AE AE18; 7951; dy F113 Prof. R. Kitey AE AE14; 7060; kitey F814 Mr. Arun Kumar (9598 75 6767) AE 7847; arunkumr F1315 Ms. P. M. Balwantrao (Combustion Lab) AE 6086; manishap F615 Ms. P. M. Balwantrao (Combustion Lab) AE 6086; manishap F6
AcknowledgementsAcknowledgements• Professor Purnendu BoseProfessor Purnendu Bose• Professor Vinod Tare• Professor Mukesh Sharma
P f Vi K G t• Professor Vinay K. Gupta• Professor C.V. R. MurtyProfessor C.V. R. Murty
List of Drawing InstrumentsList of Drawing Instruments• A good quality drafter• A large compass (150 mm) a bow compass with adjusting screws (100 mm)• 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 protractorA protractor• A scale, 300 mm (steel or hard plastic)• Good quality drawing pencils (2H, H, HB)• A sharpener, good quality eraser and a clean soft cloth, and a sticking tapeA sharpener, good quality eraser and a clean soft cloth, and a sticking tape• A notebook containing A4 size graph sheets, plain sheets, and sheets for
isometric drawing• Regular drawing sheets
• STAPLER!
Drawing PencilsDrawing Pencils
HARD
MEDIUM
SOFTSOFT
Drawing SheetsDrawing Sheets
Let Us StartLet Us StartWhat is Engineering Drawing?• An art (TA!)• A language
School - Basic LanguageCollege – Foreign Language
A ‘ d l ’ i hi hl d l d t f• A ‘word language’ is a highly developed system of communication.
• Can you describe a picture or an object in words to someone y p jso that s/he can manufacture it?
For example this object?For example this object?
It i littl diffi lt!It is a little difficult!
How can these be manufactured or
constructed?
A ToyA Toy
Urban InfrastructureUrban Infrastructure
Urban InfrastructureUrban Infrastructure
MachinesMachines
Reliance petroleum refinery at Jamnagar
A Satellite
Engineering DrawingEngineering DrawingWhat is an Engineering Drawing?
M f i i b d i & f• Means of communication between designer & manufacturerAerospace engineer & aircraft manufacturing industryDesign civil engineer & construction industryM h i l i & f i dMechanical engineer & car manufacturing company and so on…
• The end goal of an engineering drawing is to convey all the required information that will allow a manufacturer/contractor to
f t / t t th d i d d t/b ildimanufacture/construct the designed product/building.• An engineering drawing simply consists of ‘lines’ and ‘words’. • An engineering drawing can be either a ‘free-hand drawing’ (for
preliminary designs) or a ‘final drawing’ prepared for manufacturers using ‘drawing instruments’ or a ‘computer’ nowadays.
ill l b h i hi• You will learn both in this course.
Engineering DrawingEngineering Drawing• The end goal of an engineering drawing is to convey all the
required information that will allow a manufacturer torequired information that will allow a manufacturer to produce/manufacture the designed product.
• An engineering drawing includes information about a product on its geometry, dimension, material, finishing, and otheron its geometry, dimension, material, finishing, and other details necessary to produce/construct the object.
• An engineering drawing must be unambiguous, complete, suitable for duplication, language independent, and conforms p , g g p ,to standards.
• The object dimensions on a drawing may either be enlarged or reduced using an appropriate scale. Scale must be mentioned g pp pon every drawing sheet.
Drawing ScalesDrawing Scales• A drawing scale is represented as m:n, where ‘m’ is the
dimension on the drawing sheet and ‘n’ is the dimension of the object in real life.
• For example, if 1 mm on drawing represents 10 cm in real life then the scale is represented as ‘Scale 1:100’.
• Scales may either be ‘Enlarged’ or ‘Reduction’• Scales may either be Enlarged or ReductionEnlarged Scales: 50:1, 20:1, 10:1, 5:1, or 2:1Reduction Scales: 1:2, 1:5, …………….1:10,000, , ,
While DrawingWhile Drawing
No CalculatorsNo FormulasNo TrigonometryNo TrigonometryOnly Instruments
Lines & LetteringLines & Lettering• Since an engineering drawings consists of ‘lines’ and
‘l i ’ ill b l ki h fi‘lettering’, we will start by looking at them first.• ‘Lines’ represent the shape of an object in the form of either
an edge, a surface, or contours of the object.an edge, a surface, or contours of the object.• ‘Lettering’ is used to describe the size and other information
necessary to manufacture the designed object. • Lines & lettering along with certain symbols, abbreviations,
and standard practices collectively make the complete description of an object on an engineering drawingdescription of an object on an engineering drawing.
Types of LinesTypes of Lines
Object & Hidden LinesObject & Hidden Lines
Object LineObject LineHidden Line
Center LinesCenter Lines
Center Lines
Construction LinesConstruction Lines
ConstructionLines
(Light)(Light)
LetteringLettering• Lettering is an essential component of an engineering
d i I i d f h ddrawing. It is done free-hand. • Lettering should be legible, uniform (size & spacing), done
rapidly (free hand), follow standard strokes (varies forrapidly (free hand), follow standard strokes (varies for left/right hander), requires continued and careful practice.
• While lettering, acute angle strokes of pencil are recommended. It helps in exerting uniform pressure and also prevents the sheet from tearing.
• Use of guidelines is recommended only initially EventuallyUse of guidelines is recommended only initially. Eventually, you should be able to write neatly and uniformly without the use of guidelines.
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