AutoCAD

1. i
AutoCAD

2. OUTLINE
 Introduction
 History
 Giving commands
 Object snap
 Zooming and panning
 Drawing 2D shapes
 Drawing 3D shapes
 Editing
 UCS
 The AutoCAD Advantage
 The Disadvantages of AutoCAD
 References

3. Introduction
 AutoCAD is a commercial software application for 2D and
3D computer-aided design (CAD) and drafting — available
since 1982 as a desktop application and since 2010 as a
mobile web- and cloud-based app marketed as AutoCAD
360.

4. History
 AutoCAD was derived from a program begun in 1977 and
released in 1979 called Interact CAD, also referred to in
early Autodesk documents as MicroCAD, which was
written prior to Autodesk's (then Marinchip Software
Partners) formation by Autodesk cofounder Mike Riddle.
 The first version by the AutoDesk Company was
demonstrated at the 1982 Comdex and released that
December.
 The 2016 release marked the 30th major release for the
AutoCAD for Windows. The 2014 release marked the
fourth consecutive year for AutoCAD for Mac.

5. How do we give a command?
 Command line
 Toolbars
(view/Toolbars)
 Drop-down menus
You can pick any one(s) that you are comfortable with.

6. What is OSNAP?
 Osnap (Object Snap) settings make it easier to
select a 2d object’s points
 Endpoint
 Midpoint
 Perpendicular
 Center
 İntersection
 Osnap will be active when
AutoCAD is expecting you to
pick a point on the working area
 Type osnap on your
command window:

7. Zooming...
 You will need to zoom in and out while drawing with
AutoCAD. This doesnt change your objects or UCS,
only the way you see your working space. This can be
done in many ways:
1. Scroll bars
2. Typing z or zoom in your command window.
 All
 Center
 Dynamic
 Extents
 Previous
 Scale
 Window

8. Lets draw a LINE:
 remember that AutoCAD recognizes an object by
its coordinates. You will need two given points to
draw a line.
 You can start at a random point on your WCS for
your FIRST POINT, but you should specify the
coordinates of your SECOND POINT.
(x1,y1,z1)
(x2,y2,z2)

9. Lets draw a LINE (2):
1. Hit F8 (ortho on)
2. Give the command
3. Specify the first point
4. Specify the second point in relation to the first
point
 Point the cursor to the left hand side. You will see that
the cursor snaps only to 0o
-90o
-180o
-270o
 Type 7 and hit enter
a b
7 units

10. What else?
 Rectangle: two diagonal lines
(pick first point, select the second one with
relation to the first. @5<-33)
 Circle/Arc: center and radius
 Polygon: specify the number of edges
and length of a side
A small tip: you can use the EXPLODE command for the tool to
split the object into its components or lines
a
b
a
d
d

11. Editing…
 COPY
 MOVE
 MIRROR
 ARRAY
 SCALE
 STRETCH

12. More editing…
 STRETCH
 EXPLODE
 OFFSET
 ROTATE
 ERASE

13. Polyline (pline)
 The PLINE command creates a chain line with
multiple vertexes and straight or circular
segments between the vertexes
 Draw a closed shape with the pline command:
 Then type PEDIT (polyline edit) on the
command line and see what you can do with it:
Enter an option [Close/Join/Width/Edit
vertex/Fit/Spline/Decurve/Ltype gen/Undo]:
Try Width and Spline

14. Hatching
 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.
Alternatively it could be used to make an area of a drawing stand
out.
 You will pick:
 Pattern
 Scale
 Angle
 points

15. We can create solids by extruding as well
 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

16. 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.

17. AutoCAD Advantage
 Removal of Data Translations
 SolidWorks / Solid Edge / Inventor Compatibility
 Industry Standard Translators
 Reduced Training Time/Cost
 Rapid Product Advancements

18. Disadvantages of AutoCAD
 Line
 Limited File Formats
 Color, Fill and Texture
 Non-Parametric

19. References
 www.google.com
 www.wikipedia.com
 www.studymafia.org

20. Thanks