Challenge

Creation of geometries by Coordinate system methods using AutoCad

GGowdham Ravichandran23 Aug 2022

AIM:

Creation of geometries by Coordinate system methods using AutoCad.

INTRODUCTION:

AutoCAD was derived from a program that began in 1977, and then released in 1979 called InterCAd, also referred to in early Autodesk documents as MicroCAD, which was written prior to Autodesk's (then marinchip software partners) formation by Autodesk cofounder Michael Riddle. The first version by Autodesk was demonstrated at the 1982 Comdex and released that Decmber. AutodCAD supported CP/M-80 computers. As Autodesk's foagship product, be March 1986 AutoCAD had become the most ubiquitous CAD program worldwide
The fundamenta purpose of AutoCAD is to creat lines, arcs, circle and other geometric shapes that are necessary for the drawing that are free from errrors.
Different Coordinate systems used are:

I. Absolute co-ordinate system - All the point are taken with respect to origin.

II. Relative co-ordinate system - The points are taken with respect to the last point.

a. Relative rectangular co-ordinate system - In Relative co-ordinates we need to used "@" at starting of any co-ordiantes like (@1,1).

b. Relative polar co-ordinate system - Here we need top give Co-ordinates and angle like "@5<45). No negative co-ordinates required

III. Direct distance entry - We can directly enter the length of the line.

PROCEDURE:

Click on AutoCAD application and open this application
Initially set the template Imperial ( Feet and inches)and Units(Decimal)
Type startup in teh command line and then insert the values 1.
Then go to application menu -->select new-->creat drawing, to start form scratc.
Select defaultf setting as Imperial (feet and inches)
In default setting click on use a wizard and in that advancef setting and unit as decimal and precision as 0
Set Angle as Decimal Degree and precision as 0 and click next
Set Angle Measure as EAST and Next
Set Angle Direction as Counter-Clockwise and click Next
finished

Procedure to draw a line:

To draw a line: always follw the command while drawing a line.
Ribbon-->Home-->Draw panel-->Line.
Menu bar-->Draw-->Line.
Command-->Enter line or 'L'

Problems:

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.

Solution:

1.) P1

Solving using Absolute Co-ordinate system

Procedure:

Type the commant for line or 'L' Enter
Specifying the first point : (2,1)
Line specify the next point: (8,1)
Line specify the next point: (8,2)
Line specify the next point: (3,2)
Line specify the next point: (3,6)
Line specify the next point: (8,6)
Line specify the next point: (8,7)
Line specify the next point: (2,7)
Line specify the next point: Type 'C' for close or (point 2,1 )
The Geometry is done

Absolute Co-ordinate system

Solving using Relative rectangular co-ordinate system:

Here using the symbol @ shift the coordinates(origin) from (0,0) to previous last point have to move to left or downwards we have to use negative sign in x and y axis respectively.

Procedure:

Type the commant for line or 'L' Enter
Specify the first point: (2,1) (starting point)
Line specify the next point: @6,0 (DX=6, DY=0)
Line specify the next point: @0,1 (DX=0, DY=1)
Line specify the next point: @-5,0 (DX=-5, DY=0)
Line specify the next point: @0,4 (DX=0, DY=4)
Line specify the next point: @5,0 (DX=5, DY=0)
Line specify the next point: @0,1 (DX=0, DY=1)
Line specify the next point: @-6,0 (DX=-6, DY=0)
Line specify the next point: Type 'C' for close
The Geometry is done

Relative rectangular co-ordinate system

Solving using Relative polar co-ordinate system:

Here we need to give co-ordinates and angle like (@N<D, Wherer N is the lenght of the line and D is the orientation of the line)

Procedure:

Type the commant for line or 'L' Enter
The commant bar ask us to Line specify the first point: (2,1) (starting point)
Line specify the next point: @6<0 (Towards East)
Line specify the next point: @1<90 (Towards North)
Line specify the next point: @5<180 (Towards West)
Line specify the next point: @4<90 (Towards North)
Line specify the next point: @5<0 (Towards East)
Line specify the next point: @1<90 (Towards North)
Line specify the next point: @6<180 (Towards West)
Line specify the next point: Type 'C' for close OR @6<270 (Towards South)
The Geometry is done

Relative polar co-ordinate system

Solving using Direct distance entry:

In this type, We can directly enter the length of the line.

Procedure:

Type the commant for line or 'L' Enter
The commant bar ask us to Line specify the first point: (2,1)
Line specify the next point: 6 (Towards East)
Line specify the next point: 1 (Towards North)
Line specify the next point: 5 (Towards West)
Line specify the next point: 4 (Towards North)
Line specify the next point: 5 (Towards East)
Line specify the next point: 1 (Towards North)
Line specify the next point: 6 (Towards West)
Line specify the next point: Type 'C' for close or point 6 (Towards South)
The Geometry is done

Direct distance entry

2.) P2

Solving using Absolute Co-ordinate system

Procedure:

Type the commant for line or 'L' Enter
The commant bar ask us to Line specify the first point: (2,1)
Line specify the next point: (5,1)
Line specify the next point: (5,5)
Line specify the next point: (6,5)
Line specify the next point: (6,1)
Line specify the next point: (9,1)
Line specify the next point: (7,8)
Line specify the next point: (4,8)
Line specify the next point: Type 'C' for close or (point 2,1 )
The Geometry is done.

Absolute Co-ordinate system

Solving using Relative rectangular co-ordinate system:

Here using the symbol @ shift the coordinates(origin) from (0,0) to previous last point have to move to left or downwards we have to use negative sign in x and y axis respectively.

Procedure:

Type the commant for line or 'L' Enter
The commant bar ask us to Line specify the first point: (2,1) (starting point P)
Line specify the next point: @3,0 (DX=3, DY=0) Q
Line specify the next point: @0,4 (DX=0, DY=4) R
Line specify the next point: @1,0 (DX=1, DY=0) S
Line specify the next point: @0,-4 (DX=0, DY=-4) T
Line specify the next point: @3,0(DX=3, DY=0) U
Line specify the next point: @-2,7 (DX=-2, DY=7) V
Line specify the next point: @-3,0 (DX=-3, DY=0) W
Line specify the next point: Type 'C' for close
The Geometry is done.

Relative rectangular co-ordinate system

Solving using Relative Polar coordinate system:

Here we need top give Co-ordinates and angle like "@5<45). No negative co-ordinates required.

Procedure:

Type the commant for line or 'L' Enter
The commant bar ask us to Line specify the first point: (2,1) (starting point P)
Line specify the next point: @3<0 (Towards East)
Line specify the next point: @4<90 (Towards North)
Line specify the next point: @1<0 (Towards East)
Line specify the next point: @4<270(Towards South)
Line specify the next point: @3<0 (Towards North)
Line specify the next point: @7<90 (Towards North)
Line specify the next point: @2<180 [joint point through line and erase line]
Line specify the next point: @3<180 (Towards West)
Line specify the next point: Type 'C' for close OR @6<270 (Towards South)
The Geometry is done.

Relative Polar coordinate system

Solving using Direct distance entry:

In this type, We can directly enter the length of the line.

Procedure:

Type the commant for line or 'L' Enter
The commant bar ask us to Line specify the first point: (2,1)
Line specify the next point: 3 (Towards East)
Line specify the next point: 4 (Towards North)
Line specify the next point: 1 (Towards East)
Line specify the next point: 4 (Towards South)
Line specify the next point: 3 (Towards East)
Line specify the next point: 7 (Towards North)
Line specify the next point: 2 (Towards West)
Joint point through line and erase line
Then use line command and star through
Line specify the next point: 3 (Towards West)
Line specify the next point: Type close or 'C'
The Geometry is done

Direct distance entry

3.) P4

using Absolute coordinate system. Here, all the points are taken with respect to origin.

Procedure:

Type the commant for line or 'L' Enter
Line specifying the first point: (2,1)
Line specify the next point: (3,1)
Line specify the next point: (3,5)
Line specify the next point: (5,3)
Line specify the next point: (7,5)
Line specify the next point: (7,1)
Line specify the next point: (8,1)
Line specify the next point: (8,8)
Line specify the next point: (7,8)
Line specify the next point: (5,5)
Line specify the next point: (3,8)
Line specify the next point: (2,8)
Line specify the next point: Type 'C' for close or (point 2,1 )
The Geometry is done.

Absolute coordinate system

4.) P5

Using Relative Rectangular coordinate System. Here using the symbol @ shift the coordinates(origin) from (0,0) to previous last point have to move to left or downwards we have to use negative sign in x and y axis respectively.

Procedure:

Type the commant for line or 'L' Enter
Line specify the first point: (2,1)
Line specify the next point: @1,0
Line specify the next point: @0,7
Line specify the next point: @5,0
Line specify the next point: @0,-6
Line specify the next point: @-3,0
Line specify the next point: @0,-1
Line specify the next point: @4,0
Line specify the next point: @0,8
Line specify the next point: @-7,0
Line specify the next point: Type 'C' for close
The Geometry is done.

Relative Rectangular coordinate System

5.) P7

Using Relative polar System (@N>D, Wherer N is the lenght of the line and D is the orientation of the line)

Procedure:

Type the commant for line or 'L' Enter
The commant bar ask us to Line specify the first point: (2,1)
Line specify the next point: @8<0 (Towards East)
Line specify the next point: @6<90 (Towards North)
Line specify the next point: @8<180 (Towards West)
Line specify the next point: Type 'C' for close
Type the commant for line or 'L' Enter
The commant bar ask us to Line specify the first point: (3,2)
Line specify the next point: @2<0 (Towards East)
Line specify the next point: @3<90 (Towards North )
Line specify the next point: @2<180 (Towards West)
Line specify the next point: Type 'C' for close
Type the commant for line or 'L' Enter
The commant bar ask us to Line specify the first point: (6,2)
Line specify the next point: @2<0 (Towards East)
Line specify the next point: @3<90 (Towards North)
Line specify the next point: @2<180 (Towards West)
Line specify the next point: Type 'C' for close
The Geometry is done

Relative polar System

6.) P8

Using Direct Distance Entry we can directly enter the values

Procedure:

Type the commant for line or 'L' Enter
The commant bar ask us to Line specify the first point: (0,0)
Line specify the next point: 10 (Towards East)
Line specify the next point: 2 (Towards North)
Line specify the next point: 4 (Towards West)
Line specify the next point: 4(Towards North)
Line specify the next point: 3 (Towards East)
Line specify the next point: 2 (Towards North)
Line specify the next point: 8 (Towards West)
Line specify the next point: 2 (Towards South)
Line specify the next point: 3 (Towards East)
Line specify the next point: 4 (Towards South)
Line specify the next point: 4 (Towards West)
Line specify the next point: Type 'C' for close (Towards South)
The Geometry is done.

Direct Distance Entry

7.) P9

Using Absolute coordinate system. Here, all the points are taken with respect to origin.

Procedure:

Type the commant for line or 'L' Enter
The commant bar ask us to Line specify the first point: (1,1)
Line specify the next point: (6,1)
Line specify the next point: (6,3)
Line specify the next point: (3,3)
Line specify the next point: (3,2)
Line specify the next point: (2,2)
Line specify the next point: (2,4)
Line specify the next point: (5,4)
Line specify the next point: (5,6)
Line specify the next point: (1,8)
Line specify the next point: Type 'C' for close or (point 2,1 )
The Geometry is done.

Absolute coordinate system

8.) P10

Procedure:

Type the commant for line or 'L' Enter
The commant bar ask us to Line specify the first point: (1,1)
Line specify the next point: @2,0
Line specify the next point: @0,3
Line specify the next point: @3,0
Line specify the next point: @0,4
Line specify the next point: @-5,0
Line specify the next point: Type 'C' for close
Type the commant for line or 'L' Enter
The commant bar ask us to Line specify the first point: (2,5)
Line specify the next point: @3,0
Line specify the next point: @0,2
Line specify the next point: @-3,0
Line specify the next point: Type 'C' for close
The Geometry is done.

Relative Rectangular coordinate System

9.) Profile-wood

Using Absolute coordinate system. Here, all the points are taken with respect to origin.

Procedure:

Type the commant for line or 'L' Enter
The commant bar ask us to Line specify the first point: (0,0)
Line specify the next point: (10,0)
Line specify the next point: (10,1)
Line specify the next point: (8,1)
Line specify the next point: (8,5)
Line specify the next point: (10,5)
Line specify the next point: (10,6)
Line specify the next point: (5,9)
Line specify the next point: (0,6)
Line specify the next point: (0.1)
Line specify the next point: Type 'C' for close
The Geometry is done.

Absolute coordinate system

10.) queen Post Truss:

Procedure:

Type the commant for line or 'L' Enter
The commant bar ask us to Line specify the first point: (1,1)
Line specify the next point: @0,4
Line specify the next point: @3.5,3.57
Line specify the next point: @3.5,-3.57
Line specify the next point: @0,-4
Again select line command.
Line specify the next point: (2.5)
Line specify the next point: @0,1
Line specify the next point: @2.5,-1
Line specify the next point: @2.5,1
Line specify the next point: @0,-1
Then using line command join the points.

Relative Rectangular coordinate System

11.) Mono Plinth

Using Absolute coordinate system. Here, all the points are taken with respect to origin.

Procedure:

Type the commant for line or 'L' Enter
The commant bar ask us to Line specify the first point: (1,1)
Line specify the next point:(3,1)
Step by Step Procedure:(3,1.667)
Step by Step Procedure: (5,1)
Step by Step Procedure: (5,2.333
Step by Step Procedure: (7,1)
Step by Step Procedure: (7,3)
Step by Step Procedure: (1,1)
close the points using line command.

Absolute coordinate system

Creation of geometries by Coordinate system methods using AutoCad

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in your own course.

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Ship work like thisin your own course.

Talk to a career counsellor

Ship work like this
in your own course.