GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
LIST OF EXPERIMENTS
AUTO CAD LAB
S No Experiment Name
1 Introduction to Auto CAD
2 Different Softwares for CAD
3 Practice Exercises on Auto CAD Software
4 Drawing Plan of a building in Auto CAD
a) Plan of a Single Storeyed building in Auto CAD
b) Plan of a Multi Storeyed building in Auto CAD
5 Drawing Section and Elevation of a building in Auto CAD
a) Section and Elevation of a Single Storeyed building in Auto CAD
b) Section and Elevation of a Multi Storeyed building in Auto CAD
6 Detailing of building components like Doors, Windows, Roof Trusses
7 Exercises on development of working drawings of buildings in Auto
CAD
1
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
Experiment No: 1
Introduction to Auto CAD
Aim: - To study about special features, advantages and applications of Auto CAD
in detail.
Requirements: -
Auto CAD Software
Intel Pentium IV, or compatible
Microsoft Windows XP (Professional, Home Edition, or Tablet PC Edition),
Windows 2000 Professional SP4
512 MB RAM (minimum)
750 MB free disk space
1024x768 VGA with true color (minimum)
Mouse or other pointing device
CD-ROM drive
Microsoft Internet Explorer 6 SP1
Theory: -
CAD means Computer Aided Design or Drafting. Auto cad is most widely used
software developed by auto desk. Auto cad is a drafting package in almost all
engineering branches. There are drafting packages like cad are DIAP, CAMD, and
Delights. Auto cad is one of the most popular cad packages. It is a general purpose
computer aided design. We can draw geometrical entries like plan, section and
elevation of a building.
Advantages: -
We can make accurate and precise drawings like plan, section and elevation
of a building.
Improved engineering productively.
Reduced engineering personal requirement.
Drawing modification or eraser to intake.
Drawings prepared in the software can be stored safely.
2
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
Applications of CAD: -
Preparation of Architectural drawings in the Auto CAD
Preparation of maps of an area
Preparation of Building drawings
Preparation of circuit layouts for water distribution and sewer systems
Result: -
Studying of Auto CAD, its applications and its advantages is done.
3
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
Experiment No: 2
Different Softwares for CAD
Aim: - To study different softwares for Auto CAD.
Requirements: -
Auto CAD Software
Intel Pentium IV, or compatible
Microsoft Windows XP (Professional, Home Edition, or Tablet PC Edition),
Windows 2000 Professional SP4
512 MB RAM (minimum)
750 MB free disk space
1024x768 VGA with true color (minimum)
Mouse or other pointing device
CD-ROM drive
Microsoft Internet Explorer 6 SP1
Theory: -
CAD means Computer Aided Design or Drafting. Auto cad is most widely used
software developed by auto desk. Auto cad is a drafting package in almost all
engineering branches. There are drafting packages like cad are DIAP, CAMD, and
Delights. Auto cad is one of the most popular cad packages. It is a general purpose
computer aided design. We can draw geometrical entries like plan, section and
elevation of a building.
Advantages: -
We can make accurate and precise drawings like plan, section and elevation
of a building.
Improved engineering productively.
Reduced engineering personal requirement.
Drawing modification or eraser to intake.
Drawings prepared in the software can be stored safely.
4
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
Applications of CAD: -
Preparation of Architectural drawings in the Auto CAD
Preparation of maps of an area
Preparation of Building drawings
Preparation of circuit layouts for water distribution and sewer systems
Result: -
Studying of Auto CAD, its softwares and its advantages is done.
5
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
Experiment No: 3
Practice Exercises on Auto CAD Software
Aim: - To study and practice basic draw commands exist in the Auto CAD.
Requirements: -
Auto CAD Software
Computer Hardware
Commands: -
Line
Poly line
Construction line
Polygon
Rectangle
Arc
Circle
Ellipse
Theory: -
Line: The LINE command is used to draw a line between two specified points.
First enter the LINE command or shortcut L in the command area. Mouse Cross
hair displays to specify the first point of the line and next point of the line or enter
the distance of the line. Press ESC key at the end of the line.
Polyline: POLYLINE command is used to draw a series of lines continuously at a
time. PL or PLINE is the keyboard shortcut for polyline.
Rectangle: RECTANGLE command is used to draw a rectangular geometry in the
drawings. REC is the keyboard shortcut for rectangle. First enter the REC
command in the command area. A cross hair will be displays to specify the first
corner point of the rectangle and input the dimensions of the rectangle as other
corner point.
6
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
Circle: Circles are created with the CIRCLE command. There are several different
ways you can define a circle. Those are defining center point and radius or
diameter of the circle. In the 2Point method Define the circle with points on either
end of the circle diameter. In the 3Point method Define the circle with 3 non-
collinear points. In the Tangent, Tangent and Radius method define the circle by
specifying two other objects that are tangent to the circle and the radius of the
circle.
Arc: ARC command is used draw partial circles in the Auto CAD drawings. There
are seven methods available to draw an arc in the Auto CAD.
Those are
i. Specifying 3 points on the arc
ii. Specifying starting point, center and end point
iii. Specifying starting point, center and included angle
iv. Specifying starting point, center and length of the cord
v. Specifying starting point, end point and radius
vi. Specifying starting point, end point and included angle and
vii. Specifying starting point, end point and direction of start
Polygon: The POLYGONE command is used to draw a polygon with 3 to 1024
sides by specifying a circle inscribed or circumscribed with definite radius or by
entering side length of the polygon.
Ellipse: This ELLIPSE command is used to draw ellipses by giving starting and
ending angles
Result: Studying and practicing of all basic draw commands is done in the Auto
CAD.
7
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
Experiment No: 4
Drawing Plan of a building in Auto CAD
A) Plan of a Single Storeyed building in Auto CAD
Aim: To draw Plan of a Single Storeyed building in Auto CAD
Requirements: -
Auto CAD Software
Computer Hardware
Commands: -
Rectangle
Line
Copy
Move
Hatch
Text
Dim linear
Trim
Offset
Procedure:
Set the units and drawing limits for the drawing in the format option as required
Plan procedure:
Draw the rooms using RECTANGLE command with 3.5mX8m,
1.3mX0.9m, 2mX1.2m, 3.5mX7.1m and 3.5mx2.5m dimensions to
represent bed room, toilets, bathroom, drawing room, and kitchen
respectively
Arrange all rooms in required position using MOVE command with
reference to the given line diagram
Draw the wall thickness rectangle using OFFSET command with0.23m
width
8
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
Draw the rectangles for windows with 1.1mX1.25mat mentioned position
and for door with 1.0mX2.0m and 0.75mX2m dimensions and place them in
required position using MOVE command
Open at door positions using TRIM command and draw type of the door
Draw the sunshades of 0.6m projection with a bearing of 0.15m all-around
the windows
Draw two steps in front of the door with raise 150mm and tread 300mm
using RECTANGLE command
Result: Drawing Plan of a Single Storeyed building is done in the Auto CAD
9
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
B) Plan of a Multi Storeyed building in Auto CAD
Aim: To draw Plan of a Multi Storeyed building in Auto CAD
Requirements: -
Auto CAD Software
Computer Hardware
Commands: -
Rectangle
Line
Copy
Move
Hatch
Text
Dim linear
Trim
Offset
Procedure:
Set the units and drawing limits for the drawing in the format option as required
Plan procedure:
Draw the rooms using RECTANGLE command with 3.5mX8m,
1.3 mX0.9m, 2mX1.2m, 3.5mX7.1m and 3.5mx2.5m dimensions to
represent bed room, toilets, bathroom, drawing room, and kitchen
respectively
Arrange all rooms in required position using MOVE command with
reference to the given line diagram
Draw the wall thickness rectangle using OFFSET command with0.23m
width
Draw the rectangles for windows with 1.1mX1.25mat mentioned position
and for door with 1.0mX2.0m and 0.75mX2m dimensions and place them in
required position using MOVE command
10
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
Open at door positions using TRIM command and draw type of the door
Draw the sunshades of 0.6m projection with a bearing of 0.15m all-around
the windows
Draw two steps in front of the door with raise 150mm and tread 300mm
using RECTANGLE command
Do the same for all floors on the ground floor of the building to represent
different floor plans
Result: Drawing Plan of a Multi Storeyed building is done in the Auto CAD
11
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
Experiment No: 5
Drawing Section and Elevation of a building in Auto CAD
A) Section and Elevation of a Single Storeyed building in Auto CAD
Aim: To draw Section and Elevation of a Single Storeyed building in Auto CAD
Requirements: -
Auto CAD Software
Computer Hardware
Commands: -
Rectangle
Line
Copy
Move
Hatch
Text
Dim linear
Trim
Offset
Procedure:
Set the units and drawing limits for the drawing in the format option as required
Section Procedure:
Draw rectangles of dimensions 0.9mX0.3m, 0.6mX0.6m, 0.4mX0.6m and
0.25mX3m using RECTANGLE command to represent C.C bed, footing,
basement and height of building respectively
Arrange all of them in required position using MOVE command
Draw a rectangle with depth of 120mm to represent slab of the building
Draw the parapet(0.45m Height and 150mm thick), sunshades, doors,
windows and lintels(150mm thick and 15mm bearings) in the section using
LINE or RECTANGLE command
12
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
Draw the Shahabad tile flooring over C.C of 100mm thick using LINE
command
Hatch the section using HATCH command in required portions of the
drawing
By projecting lines from plan and section draw the elevation of the building with
paneled door and window with steps in front of door
Result: Drawing Section and Elevation of a Single Storeyed building is done in the
Auto CAD
13
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
B) Section and Elevation of a Multi Storeyed building in Auto
CAD
Aim: To draw Section and Elevation of a Multi Storeyed building in Auto CAD
Requirements: -
Auto CAD Software
Computer Hardware
Commands: -
Rectangle
Line
Copy
Move
Hatch
Text
Dim linear
Trim
Offset
Procedure:
Set the units and drawing limits for the drawing in the format option as required
Section Procedure:
Draw rectangles of dimensions 0.9mX0.3m, 0.6mX0.6m, 0.4mX0.6m and
0.25mX3m using RECTANGLE command to represent C.C bed, footing,
basement and height of building respectively
Arrange all of them in required position using MOVE command
Draw a rectangle with depth of 120mm to represent slab of the building
Draw the parapet(0.45m Height and 150mm thick), sunshades, doors,
windows and lintels(150mm thick and 15mm bearings) in the section using
LINE or RECTANGLE command
Draw the Shahabad tile flooring over C.C of 100mm thick using LINE
command
14
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
Hatch the section using HATCH command in required portions of the
drawing
By projecting lines from plan and section draw the elevation of the building with
paneled door and window with steps in front of door
Result: Drawing Section and Elevation of a Multi Storeyed building is done in the
Auto CAD
15
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
Experiment No: 6
Detailing of building components like Doors, Windows, Roof
Trusses
Aim: To draw components like doors, windows and roof trusses of a building in
Auto CAD
Requirements: -
1. Auto CAD Software
2. Computer Hardware
Commands: -
Rectangle
Line
Copy
Move
Hatch
Text
Dim linear
Trim
Offset
Procedure:
Set the units and drawing limits for the drawing in the format option as required
Draw a rectangle using RECTAGLE command with dimensions equal to door
dimensions
Command Sequence:
Command: RECTANGLE
Specify first corner point:
Specify the second corner point:
16
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
Using OFFSET command draw a parallel rectangle inside the above drawn
rectangle
Command Sequence:
Command: OFFSET
Specify the offset distance:
Select the object to offset:
Draw the wooden panels with required dimensions using RECTANGLE and
OFFSET command
Move all those panels into exact position by using MOVE command and hatch
to show wooden portion and glazed potion using HATCH command.
Command Sequence:
Command: HATCH
Select the pattern: Glass
Add pick points:
Do the same for drawing windows and roof trusses
Result: Drawing Components like Doors, Windows and roof Trusses of a building
is done in the Auto CAD
17
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
Experiment No: 7
Exercises on development of working drawings of buildings in Auto
CAD
Aim: To prepare Drawings for a building in the Auto CAD
Requirements: -
Auto CAD Software
Computer Hardware
Commands: -
Rectangle
Line
Arc
Copy
Move
Hatch
Text or M TEXT
Dim linear
Trim
Offset
Procedure:
Set the units and drawing limits for the drawing in the format option as required
Draw the plan of the building with all rooms in the correct position using
commands like LINE, RECTANGLE, OFFSET and MOVE with reference
to the given line diagram
Draw the section of the building with components like C.C bed, footings,
basement and walls with sections and elevations of doors and windows with
specified dimensions and in exact position using MOVE command
Hatch the required components of the section using HATCH command
Draw the Elevation of the building by projecting lines from the plan and
section
18
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
Draw the site plan of the building with required spaces all around the
building with details like car parking, plinth area, passages and location of
the septic tank using RECTANGLE and LINE commands
Draw the Key plan of the building which should show the position of the
building among the surrounding structures and road network
Draw the Title block at the left bottom corner of the drawing using LINE
and OFFSET commands to write signature of the owner and surveyor
Draw a tabular form above the title block and draw the details like
Foundation details, Doors schedule and window schedule using LINE and M
TEXT commands
Draw the North Arrow above the table using required commands to show
the direction and orientationof the drawings
Using TEXT command write the details like room sizes, their name like
bedroom or kitchen and sizes of steps
Water supply Layout:
Draw the plan of the building with all rooms in the correct position using
commands like LINE, RECTANGLE, OFFSET and MOVE with reference
to the given line diagram
Draw two parallel lines in front of the building plan with a distance of 3.75m
between them to represent the road using LINE and OFFSET commands
Draw the details like Tap, Shower, Storage tank, tubs, Water basins and
sinks in the rooms of the plan using necessary commands
Draw a line between two road lines using LINE command to represent main
water pipe
Draw a perpendicular line from the above drawn line up to points like taps
and sinks to represent service or distribution pipes of the building
Draw the circles at every intersection of the lines using CIRCLE command
to represent valves between the pipes
Using TEXT command write all the details
Sanitary Lines:
Draw the plan of the building with all rooms in the correct position using
commands like LINE, RECTANGLE, OFFSET and MOVE with reference
to the given line diagram
Draw two parallel lines in front of the building plan with a distance of 3.75m
between them to represent the road using LINE and OFFSET commands
19
Auto CAD Lab Manual
GOVERNMENT ENGINEERING COLLEGE , BANKA
(Dept. of Civil Engineering )
Draw the details like Tap, Shower, Water closets, vent pipes, Water basins,
septic tank, flushing cisterns and sinks in the rooms of the plan using
necessary commands
Draw a line between two road lines using LINE command to represent main
sewer pipe
Draw a perpendicular line from the above drawn line up to points like Water
closets, Septic tanks and sinks to represent waste collecting pipes of the
building
Using TEXT command write all the details
Result: Preparation of Working Drawings of a building in the Auto CAD is done
20
Auto CAD Lab Manual
