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PRESENTATION
ON AUTOCAD
BY-
H
AR
SH
K
H
ATAN
A

SIX WEEKS INDUSTRIAL TRAINING PROJECT
ON AUTOCAD
Submitted To : Submitted By :
Electrical Department , Harsh Khatana
Government polytechnic manesar .
230070900050

OUTLINE
 Introduction
 Latest Version
 AutoCAD Screen
 Way to provide command.
 How it Works
 Co-ordinate system.
 Toolbars
 Some 2D command.
 3D Modeling
 Some 3D Commands
 Isometric view.
 Project work
 Benefits of AutoCAD.

INTRODUCTION
 The Word AutoCAD is made up of two words “Auto(logo of company)”and CAD
“(computer aided design)”.
 AutoCAD is 2D and 3D modeling software.
 It is developed by Autodesk company.
 Autodesk is an U.S.A based company.
 It is widely used in industry for 2D drawing and 3D modeling.
 In another way we can say that AutoCAD is a designing course , which is
performed by the help of computer.

VERSION OF AUTOCAD
 AutoCAD software was firstly launched by Autodesk company in Dec. 1982.
 It comes in India in 1988.
 The first version of AutoCAD was R1 after that R2,R3,R4…………… and so on.
 In 2000,Autodesk launched a version of AutoCAD 2000 after that 2001,2002……
so on.
 This time, we have the latest version of AutoCAD is 2014,which is launched on
27th
march 2013.
 Latest version is easy to use and over come the difficulties of old version.

WAY TO PROVIDE COMMAND
1.
2.
3.

HOW AutoCAD WORKS
 There is a co-ordinate system used in AutoCAD.
 Every drawing shows its co-ordinate.
 In above next slide the line shows its co-ordinate that is ( 9,6 ) and (-10,-4).
 There is so many commands like copy, move ,rotate ,mirror in 2D, path
array , rectangular array, polar array & more.
 Different types of drawing can be made in the same time by using a
command that is LAYER.
 Using line , arc , circle , rectangle , ellipse & polygon , so many drawing of
different type can be made.

CO-ORDINATE SYSTEM
 Every thing that we draw in AutoCAD is exact.
 All object drawn on screen is based on simple X-Y co-ordinate system.
 In AutoCAD it is known as world co-ordinate system (WCS).
 We are drawing a line, so we have two points A(-10,-4) and B(9,6). As shown in
figure.

The UCS and WCS
 The AutoCAD world is 3 dimensional. However, if we want to draw a 2d object,
such as a plan or a section, we will use only 2 dimensions (x and y).
 WCS (world coordinate system) is the imaginary plane that is parallel to the
ground. It is the default coordinate system.
 Modifications made to the World Coordinate System (WCS) result in a User
Coordinate System (UCS). It is the plane that you work on. It enables the user to
draw 3 dimensional objects.
 To create a new UCS, type ucs on the command window, then say New and specify
3 points on your new UCS plane.

DRAW TOOLBAR AND MODIFY TOOLBAR :
Following image shows two very basic tool bars, these will be heavily
used as you progress towards the end of your drawing. You can access
these tool bars under Home tab.
As we move cursor over any tool in the tool bar a tooltip appears
stating the name of that tool. And if we further wait for about three
seconds, it turns into a brief description about that particular tool. As
shown by the following image.
For more details we can press F1 key. Now I am going to draw a
simple object. My purpose is to introduce you with the Line, Circle,
Offset, Erase, Move, Fillet and Chamfer commands. But first let us
decide about unit system, we are going to use.

DIMENSION TOOLBAR :
AutoCAD provides a whole range of dimensioning tools which can be used to
quickly dimension any drawing without the need for measurement.
Dimensioning in AutoCAD is automatic; lines, arrows and text are all taken
care of by the dimension commands. AutoCAD dimensions are special blocks
which can easily be edited or erased as necessary.
AutoCAD provides lots of control over the way dimensions look. Using a system
similar to text styles, dimension styles allow you to design dimensions so that
they look just the way you want them to.
We can use the following dimensional commands like
The Linear Dimension, The Continue Dimension Command, The Baseline
Dimension Command, The Aligned Dimension Command, Changing the Text, The
Radial Dimension Commands, Angular Dimensions, Annotation with Leaders,
Editing Dimensions, The Dimension Edit Command etc.

DRAWING DEPICTING USE OF
DIMENSIONING

HOW TO SET DRAWING UNITS:
To set the drawing units, go to the drop down window at the top let side of the
AutoCAD 2013 screen labeled as Format or just press Alt + o key to do so. And
from this menu select units. A pop up window will appear that will set our
drawing units as shown below.

BLOCK MAKING:
So, setting up a Block looks like this:
First, we select all the objects that we want to add to the block and type in
Block in the AutoCAD Commands window, and hit "Enter"
The window that pops up will prompt us for a
number of fields, but the most important is
"Name". For example "School Chair". There will
be three options for handling objects. The first is
"Retain" - this is effectively using the "Group"
command to group all objects into one "thingy"
for manipulation. Convert to Block gets rid of all
the separate instances that make up the object,
but makes it a block. "Delete" is really horribly
misnamed. It converts the object to a block, and
then deletes it from the current drawing - but it's
still loaded up and ready to be replicated
throughout the drawing.

Insertion of Blocks
To insert a saved block, go to the Insert menu, then Blocks, and select the name
of the saved block you want to include; it'll appear at the point that you last
clicked with the mouse. When the Block Definition window is opened, you can
click the button by the words "Base Point" and define the default position in the
drawing for inserted blocks to appear, which can be a real time saver. You
should also make sure that the units selected from the drop down menu match
the units you're doing your drawing in; it's generally going to match by default,
but it's the first place to look when you're tweaking something that's not
working.

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SOME 2D DRAWINGS MADE DURING THE
AUTODESK AUTOCAD COURSE :
 By Use Of Circle Command (c) (ttt)

 HOOK DRAWING BY MIX 2D COMMANDS

Introduction to Isometric
Drawings :
The most common type of pictorial drawing used in the drafting industry is the isometric
drawing. . This supplement focuses on tools and drawing aids that help you create 2D
isometric views that look 3D, as if the object tilts toward you. However, a 3D model
provides a better way to display isometric views, for most applications. AutoCAD and Its
Applications—
Advanced describes how to construct 3D models.The term isometric means equal (iso)
measure (metric). An isometric drawing has no perspective, and therefore edges that
are equal in length are drawn equal in length. The angles between the three principle
planes and edges of an object
are equal. The vertical edges of an object are parallel to each other and form measurable
isometric lines 90° from horizontal. The horizontal edges of an object are parallel to
each other and form measurable isometric lines 30° from horizontal. All other lines are
non isometric lines.
Circular features appear elliptical in an isometric drawing. The Isocircle option of the
ELLIPSE tool, allows you to construct isometric circles and arcs easily. Isometric text
uses a speciﬁc obliquing angle and rotation depending on the plane and drawing
application.
 To go to Isometric mode :
 Type Snap and right click.
 Next Again right click then Go to Styles - Select isometric
 Then again Right click .
 And we are ready to work in isometric plane

SOME ISOMETRIC DRAWINGS MADE
DURING THE AUTODESK AUTOCAD
COURSE :

ISOMETRIC DRAWING OF KITCHEN :

INTRODUCTION TO 3D:
3D capabilities allow you to draw pictorial views such as isometrics, oblique
views and perspectives. The views drawn with CADD have a number of
advantages as compared to views drawn on a drawing board. The views drawn
with CADD are very accurate and provide a lot of flexibility in terms of editing
and display. You can rotate a model on the screen just like an actual model, and
display views from different angles. CADD provides special 3D functions that
allow you to create 3D drawings that are true representations of an actual model.
These drawings can be viewed from any angle just like a physical model. That is
why 3D CADD drawings are called 3D models.
The major distinction between a 2D drawing and a 3D model is that a 2D
drawing is defined only with two coordinates (X and Y). A 3D model is defined
with three coordinates (X, Y and Z). The Z-coordinate determines the height of
an object. To make a 3D model, you need to consider all the objects of the
model in 3D space and enter the X, Y and Z coordinates for all drawing objects.

SOME 3D DRAWINGS MADE DURING THE
AUTODESK AUTOCAD COURSE

BENEFITS/USE OF AUTOCAD
 Quickly create designs.
 Improved quality over hand drafting.
 Easily modify.
 More Accuracy.
 Easy to transfer.
 Long time save.

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