Logo of Auto Cad
Ø Now days it is a most popular graphical
oriented designing product.
Ø Basically it was developed by sir auto desk
in 1972.
Ø The tool called r7.later Mr John from U.S.A. started a new organisation
called auto desk in 1980.hedevoleped a product called auto cad.
Ø The first famous product is auto cad 2000.it’s
the first graphical version. With the help of this version we can implement.
v Available versions
:-In auto cad we are having so many popular
versions they are :
I.
Auto cad 2000
II.
Auto cad 2003
III.
Auto cad 2005
IV.
Auto cad
2006&2007
V.
Auto cad
2010&2012
VI.
Auto cad 2014(windows
8 &above versions.)
v Hard
ware required:-To
install auto cad 2010&2012version we need the following hard ware
configuration.
I.
Windows
7 &above OS.
II.
Minimum
RAM capacity is 1GB.But recommended 2GB.
III.
We
need high resolution monitor.
IV.
Need
of a printer.(optional)
V.
Need
p4 or above C.P.U. But recommended dual core and above.
VI.
The
micro processor speed is not less than 1.2G.HZ.
v Available designing modes: - Basically we are having designing
methods like.
I.
Menu
bar.
II.
Command
bar.
Ø Menu
bar: - It is the
fully graphical oriented option .By using this option we can design type of
diagrams without knowing of any syntax .But it is not suitable for learners
.basically it is used by professional.
Ø Command
prompt: - This is
original concept of auto cad designing .it contains the following methods like:
I.
Standard
designing.
II.
Polar
method.
III.
Cortegen
method.
Ø Types of
commands: - In 2010&above versions the commands are mainly classified
into two major categories like:
I.
Administration
command.
II.
Designing
& modification command.
Ø Administration
commands: -
- Units : - With the help of this command we can display deferent designing measurements like:
1. Metric
conversion : -
1 centi meter = 10 milli meters
1
meter = 100 centimetres
1
kilo meter = 1000 meters
2.
Standard conversions : -
1 foot = 12 inches
1yard = 3 feat
1yard = 36 inches
1 mile = 1760 yards
3.
Metric conversions to standard conversions
: -
1 MM = 0.03937 INCHES.
1 CM = 0.39370 INCHES.
1 M = 39.37008 INCHES.
1 M = 3.028084 FEAT.
1 M = 1.09361 YARDS.
1 KM = 1093.6133 YARDS.
1 KM = 0.6213 M.
4.Standard
to metric : -
1 INCH = 2.54 CM
1 FOOT = 30.48 CM.
1YARD = 91.44 CM.
1YARD = 0.9144 M.
1MILE = 1609.344 M.
1 MILE = 1.609344 KM.
Limmax:
- By using this
command we can identify different screen sizes .The original size is 12, 9
inches .But we can also change the screen size. Limits:
- It is the
alternative command to the limmax. It is used before 2010 versions. OS
: - (Object snap) By
using this command we can select or deselect object properties .They are like:
a)
Endpoint.
b)
Midpoint.
c) O Centre.
d)
Node.
e)
Quadrant.
f)
Intersection.
g)
Extant ion.
h)
Intersection.
i)
Perpendicular.
j)
Tangent
k)
Nearest.
l)
Apparent intersection.
m)
Parallel.
OP
(Object snap): -
With the help of this command we can change the screen settings like back
ground colour, text colour, font size, pointer size and others.
v Designing
commands : -
Ø Line
family : - in this
category we are having following commands like:
i.
Line.
ii.
M
line.
iii.
PL.
iv.
SPL.
v.
RAY.
vi.
X
Line.
Line
: - With the help of this commend we can draw any type of
line diagram .To draw a line we have to specify the following steps like:
a. Specify starting point.
b. Specify direction.
c. Specify length of the line.
Polar
method: - It is one
of the oldest technique .In this technique we can draw diagrams depending on
given angle. Cartegen method: - it is another oldest method .In this method we can
design anther horizontal or vertical .Means we have to specify x axis & y
axis. Mline
(ml): - It is a
similar to line command with one difference .That is we can generate two lines
at a same time to do this concepts we have to specify distance between two
lines. Spl
(smooth poly line): -
It allows the designer to draw curved lines
at the time of designing. We have to off f8. Offset: - It is very use full command .By
using this command we can generate duplicate object depends on given distance. Trim
all: - By u sing
this command we can remove UN wanted components.
Ø Text
operations: - To
implement all types of operations We are having the following commands like:
a. Text.
b. ED.
c. ST.
d. SC.
e. Mtext
Text:
- With the help of
this command we can enter any type of text information to this concept we have
to specify height & distance. ED: - By using this command we can
modify particular text information.
ü BY double click also we can modify
text information.
SL (SCALE): - By using this command we can change
the text size. ST
(style): - It allows
the designer to change the font name. Mtext:
- It is a extend
command of text with the help of this command we can performed all types of
operations .Like changing font name font size colour and other effects. Hatch: - It is a very useful command by
using this command we can fill particular objects sign counter or solid
surface. Break: - By using this command we can
remove specified parts of a diagram. Join:
- By using this command we can connect tow different lines
into a single line .To use this command the two lines must be in similar
direction. Extend:
- By using this
command we can extend particular line diagram into specific location. Fillet:
- Basically it works
under corners means we can convert particular corner into a curve format
depends on given radius. Chamfer:
This is a rivers
operation of fillet means we can cut particular corner depends on given line 1
& line 2 distances.
Arc:
- We can design arc
related diagrams .We can design arc diagrams in two methods.
a) Manual.
b) Centre point specification.
