Autocad commands used in the software

1. ADVANTAGES
1. It is Faster and gives more Accurate
Result as compare to Conventional
method.
2.Drawings are Easier to store and
Retrieve.
3. Storage space required is less.
4. Transfer of Drawing is Faster and
Cheaper.
5. Two or more Design can be Compared
Analytically.

2. DISADVANTAGES
1. Skilled Person required.
2. Size of Software package is
Large.
3. It requires Huge Investment.

3. APPLICATIONS
1. For Mechanical Engg.
a) Part Design
b) Machine Design
c) Gear Design
d) Automobile
e) Manufacturing

4. 2. For Civil Engg.
a) Layout Design
b) Construction Works
c) Architecture Design

5. 3. Chip Design
4. Transformer Design
5. Circuit Design

6. Other CAD Software
1. Solid Edge
2. Solid Works
3. CATIA
4. Pro-E
5. Unigraphics (NX)

7. SCREEN
LAYOUT OF
AUTO CAD

9. DRAW TOOL
BAR

10. LINE
PLINE POLYLGON
RECTANGLE
ARC
CIRCLE
ELLIPSE
POINT
HATCH
TEXT

11. CIRCLE COMMAND

12. DIFFERENT METHODS TO
DRAW CIRCLE :-
1. CENTRE, RADIUS
2. CENTRE, DIAMETER
3. 2 POINTS
4. 3 POINTS
5. TANGENT, TANGENT, RADIUS
6. TANGENT, TANGENT, TANGENT

13. CENTRE, CENTRE
 Draws a circle based on a center point and a diameter or a radius.
 Specify radius of circle or [Diameter]: Specify a point, enter a value, enter
d, or press ENTER
 Radius
 Defines the radius of the circle. Enter a value, or specify a point (2). The
distance between this point and the center point determines the radius of the
circle.

14. CENTRE, DIAMETER
 Draws a circle using the center point and a
specified distance for the diameter.
 Specify diameter of circle <current>: Specify a
point (2), enter a value, or press ENTER

15. COMMAND PROMPT :C

16. SPECIFY CENTER POINT FOR CIRCLE : 0,0

17. SPECIFY RADIUS OF CIRCLE: 60

19. 2 POINTS
 Draws a circle based on two endpoints of the
diameter.
 Specify first endpoint of circle’s diameter:
Specify a point (1)
 Specify second endpoint of circle’s diameter:
Specify a point (2)

20. 3 POINTS
 Draws a circle based on three points on the
circumference.
 Specify first point on circle: Specify a point (1)
 Specify second point on circle: Specify a point (2)
 Specify third point on circle: Specify a point (3)

21. TANGENT, TANGENT, RADIUS
 Draws a circle with a specified radius tangent to two
objects.
 Specify point on object for first tangent of circle:
Select a circle, arc, or line
 Specify point on object for second tangent of circle:
Select a circle, arc, or line
 Specify radius of circle <current>:

22. TANGENT, TANGENT,
TANGENT
 Draws a circle with a specified radius of the
objects.
 Specify point on object for first tangent of circle:
Select a circle, arc, or line
 Specify point on object for second tangent of
circle: Select a circle, arc, or line
 Specify point on object for third tangent of circle:
Select a circle, arc, or line

23. LINE Command

24. RECTANGLE Command

25. First Corner Point
 Specifies a corner point of the rectangle.
 Specify other corner point or
[Area/Dimensions/Rotation]: Specify a
point or enter an option
 Other Corner Point
 Creates a rectangle using the specified
points as diagonally opposite corners.

26. ELLIPSE Command

27. Axis Endpoint
 Defines the first axis by its two endpoints. The angle of the first
axis determines the angle of the ellipse. The first axis can
define either the major or the minor axis of the ellipse.
 Specify other endpoint of axis: Specify a point (2)
 Specify distance to other axis or [Rotation]: Specify a distance
by entering a value or locating a point (3), or enter r
 Distance to Other Axis
 Defines the second axis using the distance from the midpoint of
the first axis to the endpoint of the second axis (3).

28. POLYGON Command

29. Center of Polygon
 Defines the center of the polygon.
 Enter an option [Inscribed in
circle/Circumscribed about circle]
<current>: Enter i or c or press
ENTER

30. 1. Inscribed in Circle
 Specifies the radius of a circle on which all vertices of
the polygon lie.
 Specify radius of circle: Specify a point (2) or enter a
value
 Specifying the radius with your pointing device
determines the rotation and size of the polygon.
Specifying the radius with a value draws the bottom
edge of the polygon at the current snap rotation angle.

31. 2. Circumscribed about Circle
 Specifies the distance from the center of the polygon
to the midpoints of the edges of the polygon.
 Specify radius of circle: Specify a distance
 Specifying the radius with your pointing device
determines the rotation and size of the polygon.
Specifying the radius with a value draws the bottom
edge of the polygon at the current snap rotation
angle.

32. ARC
Command

33. COMMAND PROMPT: A

34. SPECIFY FRIST POINT
SPECIFY SECOND POINT
SPECIFY END POINT

35. SPECIFY END POINT
SPECIFY CENTER POINT
SPECIFY START POINT

36. SPECIFY ANGLE
SPECIFY CENTER POINT
SPECIFY START POINT
SPECIFY END POINT

37. MODIFY
TOOL BAR

38. ERASE COPY
MIRROR
OFFSET
ARRAY
MOVE ROTATE
SCALE
TRIM
EXTEND
BREAK
JOIN
CHAMFER
FLLET

39. COPY Command

40. 1. SELECT OBJECT
2. SPECIFY BASE POINT OR DISPLASMENT
3. object

41. MIRROR Command

42. Select object
SELECT MIRROR LINE object

43. MOVE Command

44. 1. SELECT OBJECT
2. SPECIFY BASE POINT OR DISPLASMENT
3. object

45. ROTATE Command

46. OBJECT

47. SELECT OBJECT

48. SPECIFY ROTATION ANGLE

50. CHAMFER Command

51. CHAMFER by Distance Method

52. FILLET Command

53. FILLET by FIRST OBJECT
Method