I:Autocad is a full featured collection of software tools used for designing and drafting. Developed by Autodesk, Inc. (Mill Valley, California) Released in December, 1982 II:Reasons why use Autocad -Accurate -Productive and efficient -Capable of sharing data III:Drawing Commands Keystrokes -Commands l -Line pl -Polyline rec -Rectangle c - Circle a -Arc el -Ellipse pol- Polygon e -Erase m -Move co -Copy ar -Array ro -Rotate tr -Trim ex- Extend o- Offset s -Stretch mi -Mirror f -Fillet cha -Chamfer J- Join Br -Break sc -Scale po -Point spl -Spline la -Layer mt -Mtext dim -Dimension h -Hatch ch -Properties lw -Line weight IV:Entering points in Autocad -Absolute coordinates -Relative rectangular coordinates / relative coordinates -Relative polar coordinates / polar coordinates V:2 Types of Array -Rectangular array -Polar array VI:Layer properties -Status -Name -On -Freeze -Lock -Color -Linetype -Lineweight -Plot style -Plot -Description VII:Dimension a.Basic Types: -Linear -Angular -Radial -Ordinate -Arc length b.Parts of Dimension: -Dimension text -Dimension line -Arrowheads -Extension line -Center mark -Center lines

1. Autocad
 is a full featured collection of software tools used for
designing and drafting.
 Developed by Autodesk, Inc. (Mill Valley, California)
 Released in December, 1982
Reasons why use Autocad
 Accurate
 Productive and efficient
 Capable of sharing data
Drawing Commands
Keystrokes Commands
l Line
pl Polyline
rec Rectangle
c Circle
a Arc
el Ellipse
pol Polygon
e Erase
m Move
co Copy
ar Array
ro Rotate
tr Trim
ex Extend
o Offset
s Stretch
mi Mirror
f Fillet
cha Chamfer
J Join
Br Break
sc Scale
po Point
spl Spline
la Layer
mt Mtext
dim Dimension
h Hatch
ch Properties
lw Line weight
Entering points in Autocad
 Absolute coordinates
 Relative rectangular coordinates / relative coordinates
 Relative polar coordinates / polar coordinates
2 Types of Array
1) Rectangular array
2) Polar array
Layer properties
 Status
 Name
 On
 Freeze
 Lock
 Color
 Linetype
 Lineweight
 Plot style
 Plot
 Description
Dimension
Basic Types:
1) Linear
2) Angular
3) Radial
4) Ordinate
5) Arc length
Parts of Dimension:
a) Dimension text
b) Dimension line
c) Arrowheads
d) Extension line
e) Center mark
f) Centerlines