The document discusses AutoCAD 2021 and provides instructions for its use. It begins with an introduction to AutoCAD as 2D and 3D modeling software developed by Autodesk. It then covers AutoCAD's screen and interface, coordinate systems, toolbars, basic 2D commands, dimensions, 3D modeling commands like extrude and presspull, and benefits such as accurate drawing and easy editing. The document serves as a tutorial for using AutoCAD's various functions.

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BHAGALPUR COLLEGE OF ENGINEERING
Autocad 2021
Autocad 2021
Name: KumarGaurav
Branch: MechanicalEngineering
RollNo: 19253
RegNo: 19102108042

2. OUTLINE
Introduction
Latest Version
AutoCAD Screen
Way to provide the command.
How it Works
Co-ordinate system.
Toolbars
Some 2D command
3D Modeling
Some 3D Commands
Isometric view.
Project work
Benefits of AutoCAD.
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3. INTRODUCTION
The Word AutoCAD is made up of two words Auto (logo of company) and CAD (computer-
aided design). AutoCAD is a 2D and 3D modeling software. It is developed by Autodesk
company. Autodesk is a U.S.A based company. It is widely used in the industry for 2D drawing
and 3D modeling. In another way, we can say that AutoCAD is a designing course, which is
performed with the help of a computer.
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4. VERSION OF AUTOCAD
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AutoCAD 2000
AutoCAD 2000i
AutoCAD 2001
AutoCAD 2002
AutoCAD 2003
AutoCAD 2004
AutoCAD 2005
AutoCAD 2006
AutoCAD 2007
AutoCAD 2008
AutoCAD 2009
AutoCAD 2010
AutoCAD 2011
AutoCAD 2012
AutoCAD 2013
AutoCAD 2014
AutoCAD 2015
AutoCAD 2016
AutoCAD 2017
AutoCAD 2018
AutoCAD 2019
AutoCAD 2020
AutoCAD 2021
(2020, March 25)
AutoCAD Version 1.0
(1982, December)
AutoCAD Version 1.2
AutoCAD Version 1.3
AutoCAD Version 1.4
AutoCAD Version 2.0
AutoCAD Version 2.1
AutoCAD Version 2.5
AutoCAD Version 2.6
AutoCAD Release 9
AutoCAD Release 10
AutoCAD Release 11
AutoCAD Release 12
AutoCAD Release 13
AutoCAD Release 14

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AUTOCAD SCREEN

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The UCS and WCS

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

8. The following image shows two very basic toolbars, and these will be heavily used as you
progress towards the end of your drawing. You can access these toolbars under the Home
tab. As we move the cursor over any tool in the toolbar a tooltip appears stating the name of
that tool. And if we further wait for about three seconds, it turns into a brief description of 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.
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DRAW TOOLBAR AND MODIFY TOOLBAR

9. 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.
AutoCAD provides a whole range of dimensioning tools that 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 that can easily be edited or erased as necessary.
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DIMENSION TOOLBAR
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.

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DRAWING DEPICTING USE OF DIMENSIONING

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HOW TO SET DRAWING UNITS
Type D on the command line and press enter. Click on the New button then select a name
for your dimension style and click on the Continue button.

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TEXT COMMAND IN AUTOCAD

13. Hatching is used to add shaded patterns to
objects and shapes within an Autocad
drawing.
Hatch patterns can be used to indicate a
material to be used, such as a concrete
hatch.
You will pick: Pattern - Scale - Angle - Points
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HATCHING IN AUTOCAD

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AUTOCAD COMMAND - Shortcut

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SOME 2D DRAWINGS MADE DURING THE AUTODESK AUTOCAD COURSE

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SOME 2D DRAWINGS MADE DURING THE AUTODESK AUTOCAD COURSE

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INTRODUCTION TO 3D
3D capabilities allow you to draw pictorial views such as isometrics, oblique views, and
perspectives. The views drawn with CADD have several 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

18. Solids contain the “mass properties” of 3D objects. You can use the Solids toolbar for readily
accessible objects
Box
Cylinder
Wedge, You can use the Boolean operations of more complicated shapes.
Union (join two solids)
Subtract (carve out the second solid from the first)
Intersection (only the common area)
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3D MODELING

19. SOME 3D OBJECT
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3D COMMANDS
PRESSPULL
Presspull can extend in the Z direction or be
set to taper or follow a path. You can extrude
an open or closed object to create a 3D surface
or solid.

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USE OF EXTRUDE COMMAND
If you “Extrude” a surface into the third dimension, you simply add a thickness in section. This
basically is same as creating a “solid” object . Extrude 5 units 5 units Extrude -4 units 4 units

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BENEFITS/USE OF AUTOCAD
1. Draw to Scale
2. Easy Layout and Viewing
3. Draw Accurately
4. Make Changes Easily and Reduce Risk of Error
5. Identify Design Problems
6. Calculate Material Quantities for Production
7. Store and Transfer Data Safely
8. Save Time and Money

22. THANK YOU
THANK YOU
HAVE A NICE DAY