Auto CAD Civil Basic Intro

1. K.SOLAI RAJA.,B.E. (CIVIL)
DESIGN CADD ENGINEER
CADD CENTER DINDIGUL
AUTO CAD
64 Hr’s

2. Introduction to AutoCAD
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3. What is AUTOCAD
AutoCAD is a Software Application
Which Is Used To Design Draft 2D &
3D Drawings
CAD – Computer Aided Design
CADD - Computer Aided Design & Drafting
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Projections:
1.Orthographic Projections
2.Isometric Projections
3.Oblique Projections
4.Perspective Projections
Drawings:
2D Drawings
3D Drawings
Isometric Drawings
Perspective Drawings

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Orthographic Projection Isometric Projection
Oblique Projection
Perspective Projection

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Angle Projections:

7. HISTORY :
 The Interact CAD Package in 1970’s Developed by
MIKE RIDDLE.
 In 1982, JOHN WALKER to developed Cad
Software in California.
1984 – Auto Desk company has purchased from john
walker and release in the name of Auto CAD.
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CADD File Format:
*.dwg - AutoCAD Drawing
*.dws - AutoCAD Drawing Standards
*.dwt - AutoCAD Templates

8. CAD Advantages
Very high dimension accuracy.
Time, cost, money save.
Easy modification and draw.
Less error.
We can send Email.
We can create password.
Storage facility.
User friendly software.
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9. Users of CAD
CAD is used by:
Drafters
Designers
Engineers
Architectural
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Civil, Architectural
Mechanical, Electrical, Marine, Aeronautical,
Automobile, etc.,

10. ENGINEERING DRAWING
TYPES:
View based drawing.
Dimension based drawing.
Engineering language.
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11. UNITS
Decimel – mm, cm, m, km.
Engg & Architectural – inches, feets.
Scientific – light years.
Fractional – micro inches.
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Angle:
Decimal Degree, Deg/Min/Sec, Grads,
Radians, Survey Units
Precision:
Sets the number of Decimal places or
fractional size displayed for linear Measurement
Example: 0, 0.0, 0.00, 0.000

12. LIMITS
Limits Sets an Invisible boundary in the Drawing Area by
Specifying Lower left & Upper Right Corner of the
boundary
•Initial : 0,0.
•Secondary :
A0 - 841 x 1189
A1 - 594 x 841
A2 - 420 x 594
A3 - 297 x 420
A4 - 210 x 297
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Application Example:
A0, A1 - Technical Drawings, Posters
A2,A3 - Drawings, Diagrams, Large Tables
A4 - letters, Magazines, Forms, Catalogues, laser
Printer, Photocopying Machines
A5 - Note Pads
A6 -Postcards
A6,A5,B6,B5 - Books
C6,C5,C4 - Envelops for Letters:
unfolded (C4),folded (C5),folded (C6)
B4,A3 - Newspapers

14. CO ORDINATE SYSTEM
It means flow to draw the drawing without
using mouse,(only using keyboard) it is called
co-ordinate system.
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TYPE:
1.Absolute Co-Ordinate System.
2.Relative Rectangular Co-Ordinate System.
3.Relative Polar Co-Ordinate System.

15. ABSOLUTE CO-ORDINATE SYSTEM
All points are Measured from the Origin ( 0,0 ). This Based
on X,Y point.
X – Horizontal Axis
Y – Vertical Axis
C: L (line)
C:2,2
C: 2,8
C: 8,8
C: 2,2
C: 0,0
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X
Y

16. RELATIVE RECTANGULAR CO
ORDINATE SYSTEM
Based On The Last Point Entered. Use A Relative Co-
ordinate When You Know The Location Of A Point In
Relation To The Previous Point.
This based @ X,Y Distance
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a
b
x
0,0

17. RELATIVE POLAR CO ORDIANATE
SYSTEM
A Combination of Angle and Distance input is
called Polar Co-ordinate System
This based on @ Distance < Angle
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x
y
30
0

18. Standard Screen Layout
AutoCAD contains Ten pull-down menu items
• File
• Edit
• View
• Insert
• Format
• Tools
• Draw
• Dimension
• Modify, and Help
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Auto CAD Tools:
Drawing Tools
Modify Tools
Annotation
Properties
Layers
Utilities
Clipboard
Parametric Modeling
Display Control
Dimension Control
Inquiry Commands
Print & Plot

21. Function Keys
• Function Keys provide instant access to commands
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[F1] - Help
[F2] - Flip screen from graphics to text toggle On/Off
[F3] - Displays Osnap On/Off
[F4] - Displays 3D Osnap On/Off
[F5] - Isoplane (Left, Right, Top)
[F6] - Coordinate display
[F7] - Grid mode toggle On/Off
[F8] - Ortho mode toggle On/Off
[F9] - Snap mode toggle On/Off
[F10] - Polar Tracking mode toggle On/Off
[F11] – Object Snap Tracking On/Off
[F12] – Command Window Inter Change

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KEYBOARD SHORTCUTS

23. TOGGLE GENERAL FEATURES
Ctrl+d Toggle coordinate display
Ctrl+g Toggle Grid
Ctrl+e Cycle isometric planes
Ctrl+f Toggle running object snaps
Ctrl+h Toggle Pick Style
Ctrl+Shift+h Toggle Hide pallets
Ctrl+i Toggle Coordinates
Ctrl+Shift+i Toggle Infer Constraints
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24. MANAGE SCREEN
Ctrl+0 Clean Screen
Ctrl+1 Property Palette
Ctrl+2 Design Center Palette
Ctrl+3 Tool Palette
Ctrl+4 Sheet Set Palette
Ctrl+6 DB Connect Manager
Ctrl+7 Markup Set Manager Palette
Ctrl+8 Quick Calculator
Ctrl+9 Command Line
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25. MANAGE DRAWINGS
Ctrl+n New Drawing
Ctrl+s Save drawing
Ctrl+o Open drawing
Ctrl+p Plot dialog box
Ctrl+Tab Switch to next
Ctrl+Shift+Tab Switch to previous drawing
Ctrl+Page Up Switch to previous tab in current drawing
Ctrl+Page Down Switch to next tab in current drawing
Ctrl+q Exit
Ctrl+a Select all objects
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26. MANAGE WORKFLOW
Ctrl+c Copy object
Ctrl+x Cut object
Ctrl+v Paste object
Ctrl+Shift+c Copy to clipboard with base point
Ctrl+Shift+v Paste data as block
Ctrl+z Undo last action
Ctrl+y Redo last action
Ctrl+[ Cancel current command (or ctrl+)
ESC Cancel current command
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AutoCAD CIVIL DRAWINGS
BUILDING DRAWINGS
CENTER LINE PLAN
FOOTING PLAN
COLUMN PLAN
BEAM PLAN
SLAB PLAN
STRUCTURAL DETAILING DRAWINGS
AREA LAYOUT DRAWING
APPORED DRAWING
SURVEY & LEVELLING DRAWINGS
CONTOUR MAP

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BUILDING DRAWINGS
AREA LAYOUT DRAWING
ORTHOGRAPHIC DRAWING

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BLUE PRINT
DRAWINGS
3D DRAWINGS

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LAYOUT DRAWING

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ORTHOGRAPHIC DRAWING

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ISOMETRIC DRAWING

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THANK YOU