Creation of geometries by Coordinate system methods using AutoCad

Create the geometries from P1 to P2 using all the coordinates system methods. You need to use the Line tool to create the geometries. Where required you need to use the circle tool.Please read the drawings and find out the missing dimensions before working on the sketches.

AIM:

(A) To Create the geometries from P1 to P2 using all the coordinates system methods and p3 to p10 by any one coordinate system

(b)To draw the profile and trusses using any coordinate system methods . The dimension are ther for refrence.

INTRDUCTION

Before going to drawing we should know about the coordinate system.

In Autocad there are two coordinate system i.e cartesian and polar to these coordinate system .the absolute and relative coordinates of Autocad are applicable.

Coordinate system: AutoCAD allows you to define the placement of a point using two different coordinate systems. The
Cartesian (rectangular) Coordinate System uses the “x” distance (left/right) and the “y” distance
(up/down). The Polar Coordinate System uses the distance between points (length or magnitude)
and the angle (direction or vector).
The system you use will depend upon the information you have. Rectangular coordinates are
typically used when you know your grid positions. Polar coordinates are typically used when you
know the exact angle between two points, along with the distance

There are the following AutoCAD coordinates system

Absolute Coordinates: Using absolute coordinate, points entered by typing x,y [Enter] Relative Coordinates: After the first points are entered, your next points can be entered by specifying the next coordinate compare/relative from the first points. Using relative coordinate points entered by typing @x,y [Enter]

Polar Coordinates: Polar coordinates are used when you need to draw the next points at a specific angle. Polar coordinates system in AutoCAD specifies distance length at which angle. Using polar coordinate points entered by typing @distance

Direct Distance Method:

Basically, direct distance entry enables you to draw an object, such as a line, by pointing in a particular direction with the cursor and entering a distance at the command line.

Relative Coordinate System: The location of a Relative coordinate is defined by its distance from a reference point. In AutoCAD, when using this system the first point of the drawing/geometry is always absolute, i.e. it is established with respect to origin (0.0), and then all the successive positions are established with respect to their preceding point. This system is further classified as

a) Relative rectangular coordinates: It is a coordinate system that specifies each point by a pair of numerical coordinates in the x-axis and y-axis. In this system, the points succeeding the first point are typed in as '@x,y' in the command line.

b) Relative polar coordinates: This system specifies the distance (length) and angle of a particular point with respect to its previous point. In the Relative polar coordinate system, points are established by typing @distance

Cammands used:

1.Line cammand

2.Dimlinear cammand

3.Text cammand

4.Circle cammand

PROCEDURE:

Starting Autocad software.

• Go to start menu, select Autocad 2022
• Click on stat drawing
• In the Cammand line type in:STARTUP[ENTER]
• Enter new value of startup 1
• Got to application Menu and select new.
• In the Create New drawing dialog box , Select the imperial systemin the start from Scratch option.
• Next select the decimal unit system from the advanced setup option.
• Set the limits by entering LIMITS in the cammand tabs. The lower left corner is Specified as 0.0 and the upper right corner is specified as 100 100.

(A) To create the geometries from p1 to p2 using all the cordinates system methods.

1.Drafting the geometry for p1 by using all coordinates system methods.

a) Absolute Coordinate System:

1. Select the line tool from the ribbon tab or by entering the 'Line' command in the command tab.

2. Specify the starting coordinate of point 1 as 2,1

3. Specify the next coordinate of point 2 as 8,1

4. Specify the next coordinate of point 3 as 8,2

5. Specify the next coordinate of point 4 as 3,2

6. Specify the next coordinate of point 5 as 3,6

7. Specify the next coordinate of point 6 as 8,6

8. Specify the next coordinate of point 7 as 8,7

9. Specify the next coordinate of point 8 as 2,7

10. Then for the last point, Click 'Close' on the Command Line

b) Relative Rectangular Coordinate System:

1. Select the line tool from the ribbon tab or by entering the 'Line' command in the command tab.

2. Specify the starting coordinate of point 1 as 2,1

3. Specify the next coordinate of point 2 as @6,0

4. Specify the next coordinate of point 3 as @0,1

5. Specify the next coordinate of point 4 as @-5,0

6. Specify the next coordinate of point 5 as @0,4

7. Specify the next coordinate of point 6 as @5,0

8. Specify the next coordinate of point 7 as @0,1

9. Specify the next coordinate of point 8 as @-6,0

10. Then for the last point, Click 'Close' on the Command Line

c) Relative Polar Coordinate System:

1. Select the line tool from the ribbon tab or by entering the 'Line' command in the command tab.

2. Specify the starting coordinate of point 1 as 2,1

3. Specify the next coordinate of point 2 as @6<0

4. Specify the next coordinate of point 3 as @1<90

5. Specify the next coordinate of point 3 as @5<180

6. Specify the next coordinate of point 5 as @4<90

7. Specify the next coordinate of point 6 as @5<0

8. Specify the next coordinate of point 7 as @1<90

9. Specify the next coordinate of point 8 as @6<180

10. Then for the last point, Click 'Close' on the Command Line

d) Direct Distance Entry method:

1. Select the Line tool from the ribbon tab or by entering the 'LINE' command in the command tab

2. Specify the starting coordinate of point 1 as 2,1 in the command line

3. Enter the length of point 2 as 6 in the command line towards the +ve x-axis

4. Enter the length of point 3 as 1 in the command line towards the +ve y-axis

5. Enter the length of point 4 as 5 in the command line towards the -ve x-axis

6. Enter the length of point 5 as 4 in the command line towards the +ve y-axis

7. Enter the length of point 6 as 5 in the command line towards the +ve x-axis

8. Enter the length of point 7 as 1 in the command line towards the +ve y-axis

9. Enter the length of point 8 as 6 in the command line towards the -ve x-axis

10. Then for the last point, Click "Close' on the command line.

RESULTS

II. Drafting the geometry for P2 by using all Coordinates System methods :

) Absolute Coordinate System:

1. Select the line tool from the ribbon tab or by entering the 'Line' command in the command tab.

2. Specify the starting coordinate of point 1 as 2,1

3. Specify the next coordinate of point 2 as 5,1

4. Specify the next coordinate of point 3 as 5,5

5. Specify the next coordinate of point 4 as 6,5

6. Specify the next coordinate of point 5 as 6,1

7. Specify the next coordinate of point 6 as 9,1

8. Specify the next coordinate of point 7 as 7,8

9. Specify the next coordinate of point 8 as 4,8

10. Then for the last point, Click 'Close' on the Command Line

b) Relative Rectangular Coordinate System:

1. Select the line tool from the ribbon tab or by entering the 'Line' command in the command tab.

2. Specify the starting coordinate of point 1 as 2,1

3. Specify the next coordinate of point 2 as @3,0

4. Specify the next coordinate of point 3 as @0,4

5. Specify the next coordinate of point 4 as @1,0

6. Specify the next coordinate of point 5 as @0,-4

7. Specify the next coordinate of point 6 as @3,0

8. Specify the next coordinate of point 7 as @-2,7

9. Specify the next coordinate of point 8 as @-3,0

10. Then for the last point, Click 'Close' on the Command Line

c) Relative Polar Coordinate System:

1. Select the line tool from the ribbon tab or by entering the 'Line' command in the command tab.

2. Specify the starting coordinate of point 1 as 2,1

3. Specify the next coordinate of point 2 as @3<0

4. Specify the next coordinate of point 3 as @4<90

5. Specify the next coordinate of point 4 as @1<90

6. Specify the next coordinate of point 5 as @4<270

7. Specify the next coordinate of point 6 as @3<0

8. Specify the next coordinate of point 7 as @7<106

9. Specify the next coordinate of point 8 as @3<180

10. Then for the last point, Click 'Close' on the Command Line

d) Direct Distance Entry method:

1. Select the Line tool from the ribbon tab or by entering the 'LINE' command in the command tab

2. Specify the starting coordinate of point 1 as 2,1 in the command line

3. Enter the length of point 2 as 3 in the command line towards the +ve x-axis

4. Enter the length of point 3 as 4 in the command line towards the +ve y-axis

5. Enter the length of point 4 as 1 in the command line towards the -ve x-axis

6. Enter the length of point 5 as 4 in the command line towards the +ve y-axis

7. Enter the length of point 6 as 3 in the command line towards the +ve x-axis

8. Enter the length of point 7 as 7 in the command line at an angle of <106 from the +ve x-axis while keeping polar tracking on.

9. Enter the length of point 8 as 3 in the command line towards the -ve x-axis

10. Then for the last point, Click "Close' on the command line.

RESULTS

III. Drafting the geometry for P4 by using Absolute Coordinate System :

1. Select the line tool from the ribbon tab or by entering the 'Line' command in the command tab.

2. Specify the starting coordinate of point 1 as 2,1

3. Specify the next coordinate of point 2 as 3,1

4. Specify the next coordinate of point 3 as 3,5

5. Specify the next coordinate of point 4 as 5,3

6. Specify the next coordinate of point 5 as 7,5

7. Specify the next coordinate of point 6 as 7,1

8. Specify the next coordinate of point 7 as 8,1

9. Specify the next coordinate of point 8 as 8,8

10. Specify the next coordinate of point 9 as 7,8

11. Specify the next coordinate of point 10 as 5,5

12. Specify the next coordinate of point 11 as 3,8

13. Specify the next coordinate of point 12 as 2,8

14. Then for the last point, Click 'Close' on the Command Line

IV. Drafting the geometry for P5 by using Relative Rectangular Coordinate System :

Steps :

1. Select the line tool from the ribbon tab or by entering the 'Line' command in the command tab.

2. Specify the starting coordinate of point 1 as 2,1

3. Specify the next coordinate of point 2 as @1,0

4. Specify the next coordinate of point 3 as @0,7

5. Specify the next coordinate of point 4 as @5,0

6. Specify the next coordinate of point 5 as @0,-6

7. Specify the next coordinate of point 6 as @-3,0

8. Specify the next coordinate of point 7 as @0,-1

9. Specify the next coordinate of point 8 as @4,0

10. Specify the next coordinate of point 9 as @0,8

11. Specify the next coordinate of point 10 as @-7,0

12. Then for the last point, Click 'Close' on the Command Line

RESULTS

V. Drafting the geometry for P7 by using Absolute Coordinate System:

Steps :

1. Select the line tool from the ribbon tab or by entering the 'Line' command in the command tab.

2. Specify the starting coordinate of point 1 as 2,1

3. Specify the next coordinate of point 2 as 10,1

4. Specify the next coordinate of point 3 as 10,7

5. Specify the next coordinate of point 4 as 2,7

6. Click 'Close' on the command line

7. Select the Line tool from the ribbon tab or by entering the 'Line' command in the command tab

8. Specify the next coordinate of point 5 as 3,2

9. Specify the next coordinate of point 6 as 5,2

10. Specify the next coordinate of point 7 as 5,5

11. Specify the next coordinate of point 8 as 3,5

12. Click 'Close' on the command line

13. Select the Line tool from the ribbon tab or by entering the 'Line' command in the command tab

14. Specify the next coordinate of point 9 as 6,2

15. Specify the next coordinate of point 10 as 8,2

16. Specify the next coordinate of point 11 as 8,5

17. Specify the next coordinate of point 12 as 6,5

18. Then for the last point, Click 'Close' on the Command Line

RESULTS

VI. Drafting the geometry for P8 by using Relative Rectangular Coordinate System:

Steps :

1. Select the line tool from the ribbon tab or by entering the 'Line' command in the command tab.

2. Specify the starting coordinate of point 1 as 0,0

3. Specify the next coordinate of point 2 as @10,0

4. Specify the next coordinate of point 3 as @0,2

5. Specify the next coordinate of point 4 as @-4,0

6. Specify the next coordinate of point 5 as @0,4

7. Specify the next coordinate of point 6 as @3,0

8. Specify the next coordinate of point 7 as @0,2

9. Specify the next coordinate of point 8 as @-8,0

10. Specify the next coordinate of point 9 as @0,-2

11. Specify the next coordinate of point 10 as @3,0

12. Specify the next coordinate of point 11 as @0,-4

13. Specify the next coordinate of point 12 as @-4,0

14. Then for the last point, Click 'Close' on the Command Line

RESULTS

VII. Drafting the geometry for P9 by using Absolute Coordinate System:

Steps :

1. Select the line tool from the ribbon tab or by entering the 'Line' command in the command tab.

2. Specify the starting coordinate of point 1 as 1,1

3. Specify the next coordinate of point 2 as 6,1

4. Specify the next coordinate of point 3 as 6,3

5. Specify the next coordinate of point 4 as 3,3

6. Specify the next coordinate of point 5 as 3,2

7. Specify the next coordinate of point 6 as 2,2

8. Specify the next coordinate of point 7 as 2,4

9. Specify the next coordinate of point 8 as 5,4

10. Specify the next coordinate of point 9 as 5,6

11. Specify the next coordinate of point 10 as 1,8

12. Then for the last point, Click 'Close' on the Command Line

RESULTS

VIII. Drafting the geometry for P10 by using Relative Polar Coordinate System:

Steps :

1. Select the line tool from the ribbon tab or by entering the 'Line' command in the command tab.

2. Specify the starting coordinate of point 1 as 1,1

3. Specify the next coordinate of point 2 as @2<0

4. Specify the next coordinate of point 3 as @3<90

5. Specify the next coordinate of point 4 as @3<0

6. Specify the next coordinate of point 5 as @4<90

7. Specify the next coordinate of point 6 as @5<180

8. Click 'Close' on the command line

9. Specify the next coordinate of point 7 as 2,5

10. Specify the next coordinate of point 8 as @3<0

11. Specify the next coordinate of point 9 as @2<90

12. Specify the next coordinate of point 10 as @3<180

13. Then for the last point, Click 'Close' on the Command LinE

RESULTS

(B) To Draw the profile and the trusses using any coordinate system methods. The dimensions are there for reference:

I. Drafting the Wood Profile as shown in the given picture:

Steps For Creating The Wood Profile Using Direct Distance Entry method:

1. Select the Line tool from the ribbon tab or by entering the 'LINE' command in the command tab

2. Specify the starting coordinate of point 1 as 0,0 in the command line

3. Enter the length of point 2 as 10 in the command line towards the +ve x-axis

4. Enter the length of point 3 as 1 in the command line towards the +ve y-axis

5. Enter the length of point 4 as 2 in the command line towards the -ve x-axis

6. Enter the length of point 5 as 4 in the command line towards the +ve y-axis

7. Enter the length of point 6 as 2 in the command line towards the +ve x-axis

8. Enter the length of point 7 as 1 in the command line towards the +ve y-axis

9. Enter the length of point 7 as 5.831 in the command line at an angle of <149.036 from +ve x-direction while keeping polar tracking on

10. Enter the length of point 8 as 5.831 in the command line at the angle of <210.964 from +ve x-direction while keeping polar tracking on

11. Enter the length of point 9 as 2 in the command line towards the +ve x-axis

12. Enter the length of point 10 as 5 in the command line towards the -ve y-axis

13. Enter the length of point 11 as 2 in the command line towards the +ve x-axis

14. Click 'Close' on the command line

15. Select the Circle tool by entering the 'Circle' command in the command tab

16. Specify center point of the circle as 5,4

17. Specify radius of the circle as 2

RESULTS

II. Drafting the Queen Post Truss as shown in the given image:

Steps For Creating The Queen Post Truss Using Realtive Polar Coordinate System:

1. Select the line tool from the ribbon tab or by entering the 'Line' command in the command tab.

2. Specify the starting coordinate of point 1 as 1,1

3. Specify the next coordinate of point 2 as @4<90

4. Specify the next coordinate of point 3 as @5<45

5. Specify the next coordinate of point 4 as @5<315

6. Specify the next coordinate of point 5 as @4<270

7. Press 'Esc' to cancel the Line Command

8. Select the line tool again from the ribbon tab or by entering the 'Line' command in the command tab.

9. Specify the starting coordinate of point 1 as 1,5

10. Specify the next coordinate of point 2 as @1<0

11. Specify the next coordinate of point 3 as @2.5355<0

12. Specify the next coordinate of point 4 as @2.5355<0

13. Specify the next coordinate of point 5 as @1<0

14. Press 'Esc' to cancel the Line Command

15. Select the line tool again from the ribbon tab or by entering the 'Line' command in the command tab.

16. Specify the starting coordinate of point 1 as 2,5

17. Specify the next coordinate of point 2 as @1<90

18. Specify the next coordinate of point 3 as @2.7256<338

19. Specify the next coordinate of point 4 as @2.7256<22

20. Specify the next coordinate of point 5 as @1<270

21. Press 'Esc' to cancel the Line Command

22. Select the line tool again from the ribbon tab or by entering the 'Line' command in the command tab.

23. Specify the starting coordinate of point 1 as 4.5,5

24. Specify the next coordinate of point 2 as @3.53571<90

25. Press 'Esc' to cancel the Line Command

RESULTS

III. Drafting the Mono Pitch as shown in the given image:

Steps For Creating The Mono Pitch Using Absolute Coordinate System:

1. Select the line tool from the ribbon tab or by entering the 'Line' command in the command tab.

2. Specify the starting coordinate of point 1 as 1,1

3. Specify the next coordinate of point 2 as 7,1

4. Specify the next coordinate of point 3 as 7,3

5. Click 'Close' on the command line

6. Select the line tool again from the ribbon tab or by entering the 'Line' command in the command tab.

7. Specify the next coordinate of point 4 as 3,1

8. Specify the next coordinate of point 5 as 3,1.667

9. Specify the next coordinate of point 6 as 5,1

10. Specify the next coordinate of point 7 as 5,2.333

11. Specify the next coordinate of point 8 as 7,1

12. Press 'Esc' to cancel the Line command.

RESULTS