Ens 207 engineering graphics
This presentation is the property of its rightful owner.
Sponsored Links
1 / 15

ENS 207 engineering graphics PowerPoint PPT Presentation


  • 149 Views
  • Uploaded on
  • Presentation posted in: General

ENS 207 engineering graphics. Lecture 1: Introduction to engineering graphics. Information. Lecturer: Kemal Turan. Book. Engineering graphics with AutoCAD 2008 James D. Bethune PEARSON Additional material will be provided if necessary. Schedule

Download Presentation

ENS 207 engineering graphics

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Ens 207 engineering graphics

ENS 207 engineering graphics

Lecture 1: Introduction to engineering graphics


Information

Information

Lecturer: KemalTuran

Book

Engineering graphics with AutoCAD 2008 James D. Bethune PEARSON

Additional material will be provided if necessary.

  • Schedule

    • Tuesday 14:00 to 16:50 (Computer Lab F1.18)

  • Office : F1. 12

  • Email: [email protected]


Assessment

Assessment


Course objectives

Course Objectives

  • Develop the ability to communicate with others through the language of technical drawing and sketching.

  • Develop the ability to read and interpret engineering drawings created by others.

  • use of international standards for drafting.

  • Develop an understanding of 2D and 3D computer aided drafting.


Ens 207 engineering graphics

Effectiveness of Graphics Language

1. Try to write a description of

this object.

2. Test your written description

by having someone attempt to make a sketch from your

description.

can you easily understand that …?


Ens 207 engineering graphics

Geometric

construction

Line

types

Projection

method

Lettering

Basic Knowledge for Drafting

Word

language

Graphics

language


Standards

Drawing standards are used so that drawings transmit

the same meaning to everyone who reads them.

Standards

Standards are set of rules that govern how technicaldrawings are represented.


Ens 207 engineering graphics

USA

American National Standard Institute

ANSI

DIN

Germany

DeutschesInstitutfürNormung

International Standards Organization

ISO

Standard Code


Ens 207 engineering graphics

The language is known as “drawing” or “drafting” .

A drawing can be done using freehand, instrumentsor computer.

Composition of Graphic Language

Graphic languagein “engineering application” use

linesto represent the surfaces, edges and contoursof objects.


Ens 207 engineering graphics

Example

Freehand drawing

The lines are sketched without using instruments other than pencils and erasers.


Ens 207 engineering graphics

Example

Instrument drawing

Instruments are used to draw straight lines, circles, and curves concisely and accurately. Thus, the drawings are usually made to scale.


Ens 207 engineering graphics

Example

Computer drawing

The drawings are usually made by commercial software such as AutoCAD, solid works etc.


Drawing pencils

DRAWING PENCILS

High-quality drawing pencils help produce good quality technical sketches and drawings.

Hard

The hard leads in this

group (left) are used

where extreme

accuracy is required,

as on graphical

computations and

charts and diagrams.

The softer leads in this

group (right) are

sometimes used for

line work on

engineering drawings,

but their use is limited

because the lines are

apt to be too light.

Medium

These grades are for

general-purpose work in

technical drawing. The

softer grades (right) are

used for technical sketching,

lettering, arrowheads,

and other freehand work

on mechanical drawings.

The harder leads (left) are

used for line work on

machine drawings and

architectural drawings. The

H and 2H leads are widely

used on pencil tracings for

reproduction.

Soft

These leads are too

soft to be useful in

mechanical drafting.

They tend to produce

smudged, rough lines

that are hard to erase,

and the lead must be

sharpened continually.

These grades are used

for artwork of various

kinds, and for full-size

details in architectural

drawing.


Style of pencil

Style of Pencil

You might be surprised how much your drawings benefit from finding a style of pencil that suits your use. Soft pencils, such as HB or F, are mainly used in freehand sketching.

Choose a pencil that:

• Is soft enough to produce clear black lines, but hard enough not to

smudge (leke, mrlja) too easily.

• Is not so soft that the point breaks

easily.

• Feels comfortable in your hand.

• Grips the lead without slipping.


Standard sheets

STANDARD SHEETS

* May also be used as a vertical sheet size at 11" tall by 8.5" wide.


  • Login