Fundamentals of Engineering Graphics

GOOD MORNING STUDENTS

FUNDAMENTALS OF ENGINEERING GRAPHICS

DRAWING INSTRUMENTS * DRAWING SHEETS * COMPUTER AIDED DRAFTING & MODELLING * DRAWING PROCESSES

METHODS OF DRAWING & NEEDS

S.No.

Method Needs

1 Free Hand Sketching Drawing Sheet, 4 Instruments

2 Manual Drafting Drawing Sheet, 15 Drawing Instruments

3 Computer Aided Drafting Drawing Sheet, Computer, Software. Printer

4 Computer Aided Modelling Computer, Software

DRAWING INSTRUMENTS

DRAWING INSTRUMENTS * DRAWING SHEETS * COMPUTER AIDED DRAFTING & MODELLING * DRAWING PROCESSES

METHODS OF DRAWING & NEEDS

D R A _ I N G _ O A R D

D R A _ T E _ F R E N C _ C _ R V E S

S _ A L E / R _ L E R T E M P L A _ E / S T E N C _ L

S _ T S Q _ A R E F A S T E N _ _ S

P R O T R _ _ T O R _ E N C _ L

P R O _ I R C _ E _ R A S E _

C O M P _ S _ S H A R P E N _ R

D _ V _ D E R D _ S T _ R

INSTRUMENTS

INSTRUMENTS

INSTRUMENTS

INSTRUMENTS

INSTRUMENTS

INSTRUMENTS

INSTRUMENTS

INSTRUMENTS

INSTRUMENTS

INSTRUMENTS

INSTRUMENTS

INSTRUMENTS

INSTRUMENTS

INSTRUMENTS

INSTRUMENTS

INSTRUMENTS

DRAWING SHEETS

DRAWING INSTRUMENTS * DRAWING SHEETS * COMPUTER AIDED DRAFTING & MODELLING * DRAWING PROCESSES

DRAWING SHEET

DRAWING SHEET

DRAWING SHEETPaper Size in mm Use

A0 841 x 1149 Cinema Posters

A1 594 x 841 Flip Charts, Newspapers

A2 420 x 594 Engineering Drawings, Flip Charts

A3 297 x 420 Local Posters, Engineering Drawings

A4 210 x 297 Letters, Printouts, Common Purposes etc.

A5 148 x 210 Note Pads

A6 105 x 148 Bills

A7 74 x 105 Index Cards

A8 52 x 74 Playing Cards

DRAWING SHEET

A4, A6, A2 A4, A5, A3

COMPUTER AIDED DRAFTING & MODELLING

DRAWING INSTRUMENTS * DRAWING SHEETS * COMPUTER AIDED DRAFTING & MODELLING * DRAWING PROCESSES

COMPUTER

P4 PROCESSOR1 GB RAM40 GB HARD DISK DRIVE17 inch MONITOR

SOFTWARE

AutoCADSolid WorksSolid EdgeCollabCAD

Think3

PLOTTER/PRINTER

DRAWING PROCESSES

DRAWING INSTRUMENTS * DRAWING SHEETS * COMPUTER AIDED DRAFTING & MODELLING * DRAWING PROCESSES

PROCESSES

LAYOUT - MARGINS & TITLE BLOCK LINE TYPES & TYPES OF LINES LETTERING & NUMBERING DIMENSIONING SCALE

_______ IS LONG_______ IS SHORT

INTRODUCING BIS

1. IS 10711 – 2001: Technical products Documentation – Size and lay out of drawing sheets

2. IS 9609 (Parts 0 & 1) – 2001 :Technical products Documentation – Lettering.

3. IS 10714 (Part 20) – 2001 & SP 46 – 2003: Lines for technical drawings.

4. IS 11669 – 1986 & SP 46 - 2003 : Dimensioning of Technical Drawings.

5. IS 15021 (Parts 1 To 4) – 2001: Technical drawings- Projection Methods.

Margins are available for all sheets from A0 to A8 for both portrait & landscape orientations

A4 Sheets in Portrait Orientation will be used for our drawings

The minimum margin size for A4 sheets is 10 mm

IS 10711 – 2001

MARGINS

20 m

m

10 mm

10 mm

10 m

m

IS 10711 – 2001

MARGINS

TITLE

BLOCK

The title block is a rectangular block normally placed in the bottom right of the drawing sheet to provide the following information

the name of the company or organization the title of the drawing the drawing no.the scalethe signature or initials of the approving officer

IS 11665 – 1985

120 mm

50 m

m

IS 11665 – 1985

TITLE

BLOCK

120 mm

KVCT Roll No. Name

Experiment Title

Ex. No.1

Sheet No.1/2

Scale1 : 1

Date30.08.2010

60 mm 60 mm

20 mm

20 mm

10 mm

30 mm IS 11665 – 1985

TITLE

BLOCK

IS 10714 – 1983

MARGIN LINEOBJECT LINECENTRE LINEPROJECTION LINEDIMENSION LINELEADER LINEHIDDEN LINESECTION LINEGUIDE LINE

TYPES

OF

LINES

TYPE DESCRIPTION APPLICATION PENCIL

Continuous Thick

Object Lines or Visible Edges, Margins

HB

Continuous Thin Dimension Lines, Leader Lines, Projection LinesGuidelines

2H

Short Dashed Hidden Lines or Invisible Edges

H

Long Chain Thin Centre Lines or Lines of Symmetry

2H

Long Chain Thick at Ends & Thin elsewhere

Cutting PlaneSection Lines

2H

IS 10714 – 1983

LINE

TYPES

LETTERING & NUMBERING

The writing of titles, sub titles, dimensions, notes & other important particulars is called lettering & numbering

Lettering should be by single stroke Gothic Letters

Lettering & Numbering – Vertical & Inclined

Lettering & Numbering – Type A & Type B

Height of Lettering

Spacing

Correct Use of LettersIS 9609 – 1983

I AM ________________

IS 9609 – 1983

I LIKE KVCT. IT IS GOOD

I HAVE TO PAY RATHNAVEL 1000 RS.

LETTERING & NUMBERING

DIMENSIONING

IS 11669-1986IS 10718-1983

40 mm

80 mm

The art of indicating dimensions on the drawing to define geometric characteristics such as lengths, breadths, heights, diameters, location of holes etc.

IS 11669-1986IS 10718-1983

DIMENSIONING

DIMENSION VALUES

DIMENSION LINE

PROJECTION LINE

ARROW HEAD

LEADER LINEIS 11669-1986IS 10718-1983

DIMENSIONING

IS 11669-1986IS 10718-1983

DIMENSIONING

IS 11669-1986IS 10718-1983

DIMENSIONING

IS 11669-1986IS 10718-1983

METHODS OF PLACEMENT OF DIMENSIONS

Aligned SystemUni Directional System

Types of DimensioningChain Dimensioning

Parallel DimensioningProgressive DimensioningCo-ordinate Dimensioning

Combined DimensioningEqual Dimensioning

DIMENSIONING

SCALES

DEFINITION

SCALESFull ScaleReducing ScaleEnlarging Scale

STANDARD SCALES

RF

THANKS &

TEST