Creation of geometries by Coordinate system methods using AutoCad
AIM:
A). Create the geometries from P1 to P8 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.
B). Civil related problems: Draw the profile & the trusses using any co-ordinate system methods. The dimensions are there for reference.
INTRODUCTION:
In AutoCAD there are two co-ordinate systems: cartesian & polar.
To these co-ordinate systems the absolute & relative co-ordinates of AutoCAD are applicable
- Absolute co-ordinate systems
- Relative co-ordinate systems
- Rectangular co-ordinates
- Polar co-ordinates
- Direct distance entry
Commands used:
- Line command
- Dim linear command, Angular & Diameter
- Text command
- Circle command
PROCEDURE
A). Create the geometries from P1 to P8 using all the coordinates system methods.
Relative Rectangular Co-ordinate system:
P-1 drawing
Here below we have drawn the P-1 drawing using relative rectangular co-ordinate system,
The co-ordinates are
Command: L
LINE
Specify the first point: 2,1
Specify the next point or [Angle/Length/Undo]: @6,0
Specify the next point or [Angle/Length/Undo]: @0,1
Specify the next point or [Angle/Length/Close/Undo]: @-5,0
Specify the next point or [Angle/Length/Close/Undo]: @0,4
Specify the next point or [Angle/Length/Close/Undo]: @5,0
Specify the next point or [Angle/Length/Close/Undo]: @0,1
Specify the next point or [Angle/Length/Close/Undo]: @-6,0
Specify the next point or [Angle/Length/Close/Undo]: @0,-6
P-2 drawing
Here below we have drawn the P-2 drawing using relative rectangular co-ordinate system,
The co-ordinates are
Command: L
LINE
Specify the first point: 2,1
Specify the next point or [Angle/Length/Undo]: @3,0
Specify the next point or [Angle/Length/Undo]: @0,4
Specify the next point or [Angle/Length/Close/Undo]: @1,0
Specify the next point or [Angle/Length/Close/Undo]: @0,-4
Specify the next point or [Angle/Length/Close/Undo]: @3,0
Specify the next point or [Angle/Length/Close/Undo]: @-2,7
Specify the next point or [Angle/Length/Close/Undo]: @-3,0
Specify the next point or [Angle/Length/Close/Undo]: @-2,-7
P-3 drawing
Here below we have drawn the P-3 drawing using relative rectangular co-ordinate system,
The co-ordinates are
Command: L
LINE
Specify the first point: 2,1
Specify the next point or [Angle/Length/Undo]: @1,0
Specify the next point or [Angle/Length/Undo]: @0,4
Specify the next point or [Angle/Length/Close/Undo]: @2,-2
Specify the next point or [Angle/Length/Close/Undo]: @2,2
Specify the next point or [Angle/Length/Close/Undo]: @0,-4
Specify the next point or [Angle/Length/Close/Undo]: @1,0
Specify the next point or [Angle/Length/Close/Undo]: @0,7
Specify the next point or [Angle/Length/Close/Undo]: @-1,0
Specify the next point or [Angle/Length/Close/Undo]: @-2,-3
Specify the next point or [Angle/Length/Close/Undo]: @-2,3
Specify the next point or [Angle/Length/Close/Undo]: @-1,0
Specify the next point or [Angle/Length/Close/Undo]: @0,-7
P-4 drawing
Here below we have drawn the P-4 drawing using relative rectangular co-ordinate system,
The co-ordinates are
Command: L
LINE
Specify the first point: 2,1
Specify the next point or [Angle/Length/Undo]: @1,0
Specify the next point or [Angle/Length/Undo]: @0,7
Specify the next point or [Angle/Length/Close/Undo]: @5,0
Specify the next point or [Angle/Length/Close/Undo]: @0,-6
Specify the next point or [Angle/Length/Close/Undo]: @-3,0
Specify the next point or [Angle/Length/Close/Undo]: @0,-1
Specify the next point or [Angle/Length/Close/Undo]: @4,0
Specify the next point or [Angle/Length/Close/Undo]: @0,8
Specify the next point or [Angle/Length/Close/Undo]: @-7,0
Specify the next point or [Angle/Length/Close/Undo]: @0,-8
P-5 drawing
Here below we have drawn the P-5 drawing using relative rectangular co-ordinate system,
The co-ordinates are
Command: L
LINE
Specify the first point: 2,1
Specify the next point or [Angle/Length/Undo]: @8,0
Specify the next point or [Angle/Length/Undo]: @0,6
Specify the next point or [Angle/Length/Close/Undo]: @-8,0
Specify the next point or [Angle/Length/Close/Undo]: @0,-6
Command: L
LINE
Specify the first point: 3,5
Specify the next point or [Angle/Length/Undo]: @2,0
Specify the next point or [Angle/Length/Undo]: @0,-3
Specify the next point or [Angle/Length/Close/Undo]: @-2,0
Specify the next point or [Angle/Length/Close/Undo]: @0,3
Command: L
LINE
Specify the first point: 6,5
Specify the next point or [Angle/Length/Undo]: @2,0
Specify the next point or [Angle/Length/Undo]: @0,-3
Specify the next point or [Angle/Length/Close/Undo]: @-2,0
Specify the next point or [Angle/Length/Close/Undo]: @0,3
P-6 drawing
Here below we have drawn the P-6 drawing using relative rectangular co-ordinate system,
The co-ordinates are
Command: L
LINE
Specify the first point: 0,0
Specify the next point or [Angle/Length/Undo]: @0,2
Specify the next point or [Angle/Length/Undo]: @4,0
Specify the next point or [Angle/Length/Close/Undo]: @0,4
Specify the next point or [Angle/Length/Close/Undo]: @-3,0
Specify the next point or [Angle/Length/Close/Undo]: @0,2
Specify the next point or [Angle/Length/Close/Undo]: @8,0
Specify the next point or [Angle/Length/Close/Undo]: @0,-2
Specify the next point or [Angle/Length/Close/Undo]: @-3,0
Specify the next point or [Angle/Length/Close/Undo]: @0,-4
Specify the next point or [Angle/Length/Close/Undo]: @4,0
Specify the next point or [Angle/Length/Close/Undo]: @0,-2
Specify the next point or [Angle/Length/Close/Undo]: @-10,0
P-7 drawing
Here below we have drawn the P-7 drawing using relative rectangular co-ordinate system,
The co-ordinates are
Command: L
LINE
Specify the first point: 1,1
Specify the next point or [Angle/Length/Undo]: @5,0
Specify the next point or [Angle/Length/Undo]: @0,2
Specify the next point or [Angle/Length/Close/Undo]: @-3,0
Specify the next point or [Angle/Length/Close/Undo]: @0,-1
Specify the next point or [Angle/Length/Close/Undo]: @-1,0
Specify the next point or [Angle/Length/Close/Undo]: @0,2
Specify the next point or [Angle/Length/Close/Undo]: @3,0
Specify the next point or [Angle/Length/Close/Undo]: @0,2
Specify the next point or [Angle/Length/Close/Undo]: @-4,2
Specify the next point or [Angle/Length/Close/Undo]: @0,-7
P-8 drawing
Here below we have drawn the P-8 drawing using relative rectangular co-ordinate system,
The co-ordinates are
Command: L
LINE
Specify the first point: 1,1
Specify the next point or [Angle/Length/Undo]: @2,0
Specify the next point or [Angle/Length/Undo]: @0,3
Specify the next point or [Angle/Length/Close/Undo]: @3,0
Specify the next point or [Angle/Length/Close/Undo]: @0,4
Specify the next point or [Angle/Length/Close/Undo]: @-5,0
Specify the next point or [Angle/Length/Close/Undo]: @0,-7
Specify the next point or [Angle/Length/Close/Undo]:
Command: L
LINE
Specify the first point: 2,7
Specify the next point or [Angle/Length/Undo]: @3,0
Specify the next point or [Angle/Length/Undo]: @0,-2
Specify the next point or [Angle/Length/Close/Undo]: @-3,0
Specify the next point or [Angle/Length/Close/Undo]: @0,2
B). Civil related problems: Draw the profile & the trusses using any co-ordinate system methods. The dimensions are there for reference.
PROFILE WOOD
Here below we have drawn the Profile Wood drawing using relative rectangular co-ordinate system,
The co-ordinates are
Command: L
LINE
Specify the first point: 0,0
Specify the next point or [Angle/Length/Undo]: @10,0
Specify the next point or [Angle/Length/Undo]: @0,1
Specify the next point or [Angle/Length/Close/Undo]: @-2,0
Specify the next point or [Angle/Length/Close/Undo]: @0,4
Specify the next point or [Angle/Length/Close/Undo]: @2,0
Specify the next point or [Angle/Length/Close/Undo]: @0,1
Specify the next point or [Angle/Length/Close/Undo]: @-5,4
Specify the next point or [Angle/Length/Close/Undo]: @-5,-4
Specify the next point or [Angle/Length/Close/Undo]: @2,0
Specify the next point or [Angle/Length/Close/Undo]: @0,-5
Specify the next point or [Angle/Length/Close/Undo]: @-2,0
Specify the next point or [Angle/Length/Close/Undo]: @0,-1
QUEEN POST TRUSS
Here below we have drawn the Queen post truss drawing using relative rectangular co-ordinate system,
The co-ordinates are
Command: L
LINE
Specify the first point: 1,1
Specify the next point or [Angle/Length/Undo]: @0,4
Specify the next point or [Angle/Length/Undo]: @1,0
Specify the next point or [Angle/Length/Close/Undo]: @0,1
Specify the next point or [Angle/Length/Close/Undo]: @2.5,-1
Specify the next point or [Angle/Length/Close/Undo]: @0,3.5
Specify the next point or [Angle/Length/Close/Undo]: @-3.5,-3.5
Specify the next point or [Angle/Length/Close/Undo]: @3.5,0
Specify the next point or [Angle/Length/Close/Undo]: @0,3.5
Specify the next point or [Angle/Length/Close/Undo]: @3.5,-3.5
Specify the next point or [Angle/Length/Close/Undo]: @-1,0
Specify the next point or [Angle/Length/Close/Undo]: @0,1
Specify the next point or [Angle/Length/Close/Undo]: @-2.5,-1
Specify the next point or [Angle/Length/Close/Undo]: @3.5,0
Specify the next point or [Angle/Length/Close/Undo]: @0,-4
MONO PITCH
Here below we have drawn the Mono pitch drawing using relative rectangular co-ordinate system,
The co-ordinates are
Command: L
LINE
Specify the first point: 1,1
Specify the next point or [Angle/Length/Undo]: @2,0
Specify the next point or [Angle/Length/Undo]: @0,0.667
Specify the next point or [Angle/Length/Close/Undo]: @2,-0.667
Specify the next point or [Angle/Length/Close/Undo]: @0,1.333
Specify the next point or [Angle/Length/Close/Undo]: @2,-1.333
Specify the next point or [Angle/Length/Close/Undo]: @0,2
Specify the next point or [Angle/Length/Close/Undo]: @-6,-2
Specify the next point or [Angle/Length/Close/Undo]: @6,0
RESULT:
- The geometries are clearly mentioned in all the drawings, & missing dimensions are also shown.
- Using all the co-ordinate system all the drawings are clearly drawn from P-1 to P-8 drawings.
- The profile & trusses are drawn successfully by using the Relative rectangular co-ordinate system.