Creating a Floor plan, Footing detail and Isometric view using AutoCad
Cross section of load bearing wall over spread footing.
Aim: To draw cross section of wall over footing.
Commands used:
- Line.
- Rectangle.
- Trim.
Procedure:
Step:1 - Create rectangle by typing "REC" in command box
- Specify the first corner point as (5,5)
- Specify the length of rectangle =0.9 units in command box
- Specify width of rectangle =0.25 units in command box

Step:2- Create another rectangle -"REC" in command box.
- Specify the first corner point which is 0.2 units from the starting point of first rectangle.
- Enter the length of rectangle as 0.5 units the width of rectangle as 0.4 units.

Step:3 - Create the third rectangle command- "REC"
- Specify the first corner point which is 0.05 units from the starting point of second rectangle.
- Enter the length of rectangle as 0.4 units the width of rectangle as 0.4 units.

Step :4 - Line is drawn from the corner of third rectangle, command "L"
- Give the length as 1.15 units
- Move cursor downwards and give value 0.15 units and right and give length as 1.15 units.

Step:5 - Fourth rectangle is drawn, command -"REC"
- Specify the first corner point at a distance of 0.05 from the third rectangle
- Give the length as 0.3 and width as 0.6.

Step:6 - from the line drawn in step 4, at a distance of 0.3, draw another line with the distance of 0.15 units vertically and 0.3 units horizontally.
- Continue it two more times, until 3 steps are created.

Step:7 -Draw another rectangle above fourth rectangle, command -"REC".
- Specify the corner point as the corner of the fourth rectangle
- Click on dimension -give length as 0.3 units and width as 0.05 unit.

step:8 - Drawn the fifth rectangle command -"REC"
- Specify the corner point as the corner of fourth rectangular
- Click on dimension -give length as 0.3 units and with as 1 unit.
- Erase the unwanted line by "trim"
Result:The cross section of load bearing wall over spread footing is drawn.

Cross section of an isolated footing
Aim- To draw c/s of an isolated footing.
Commands used:
- Line.
- Offset.
- Trim.
Procedure:
Step1: - Draw a line with command "l" and give 1 units.
- give command "l" and give the relative coordinates as @ 0,0.15
- Give the next coordinate as @ 0.38,0.25.
- Next coordinate is given as @0,1.6
- Give @ 0.28,0
- Next coordinate @0, -1.6
-Next coordinate @0.38, -0.25
- Next @ 0, -0.15 or close.

Step:2 -Draw an offset with the command at a distance of 0.04 from the bottom line to up wards.
- Give the command of "o" and select the object and give the offset distance as 0.04.
- Do the same at the right and left bottom end.
- Trim the unwanted lines.

Step:3 - Give offset from the top line with an offset distance of 0.2 units.
- Give the command "o" an select the object-give the offset distance as 0.2 -select multiple option a 9 such lines
- Trim the excess lines.

RESULT: C/S of isolated footing is drawn:

Line diagram of 2 bedroom building.
Aim : To draw line diagram of 2 bedroom building
Commands used:
- Line.
- Rectangle
- Offset.
- Trim
Procedure:
Step :1 - Creating bedroom room (8.2x3.6) by rectangle.

Step-2 Use the command "Explode" and select the rectangle.
- Draw an off set using the command “O”
- In the command line enter “O” and specify the distance of3.6 units from the left bottom end.
- Draw an offset using the command “O” at a distance of4.2 units from the right bottom end.

Step-3 Extend the two line in the bottom and in the top.
- Draw an off set at a distance of 0.3 between the two line to bottom side.
- Repeat the same step and create two offsets.
- Do the same process in the top.
- Trim the unwanted lines.

Step -4
- Using line command draw a line at a distance of 3.2 units from the left bottom end to up-wards 0.9 units.
- Using line command draw a line at a distance of 3.2 units from the left top end to down-wards 1.8 units.

Result: The line diagram of 2-bedroom building is drawn:

Cross section of load bearing wall showing foundation details.
Aim: To draw the c/s of load bearing wall showing foundation details.
Commands used:
- Line.
- Rectangle.
- Trim.
Procedure:
Step:1 - Create rectangle by typing "REC" in command box.
- Specify the first corner point as (5,5).
- Specify the length of rectangle =0.9 units in command box.
- Specify width of rectangle =0.45 units in command box.

Step:2- Create another rectangle -"REC" in command box.
- Specify the first corner point which is 0.15 units from the starting point of first rectangle.
- Enter the length of rectangle as 0.6 units the width of rectangle as 0.4 units.

Step:3 - Create the third rectangle command- "REC"
- Specify the first corner point which is 0.05 units from the starting point of second rectangle.
- Enter the length of rectangle as 0.5 units the width of rectangle as 0.3 units.

Step:4 - Create the Fourth rectangle command- "REC"
- Specify the first corner point which is 0.05 units from the starting point of second rectangle.
- Enter the length of rectangle as 0.4 units the width of rectangle as 0.6 units.

Step:5 - Drawn the fifth rectangle command -"REC"
- Specify the corner point as the corner of fourth rectangular
- Click on dimension -give length as 0.3 units and with as 1 unit.
- Erase the unwanted line by "trim".
RESULT: The c/s of load bearing wall foundation details is shown:

Isometric view of steps.
Aim: To draw the isometric view of steps.
Commands used:
- Line.
- Isometric plane.
Procedure:
- To work with isometric view -command "ds" - snap off, grid off. Put isometric snap on .
- Make sure that ortho mode is on .
Step :1 - From isometric drafting select iso-plane left.
- Give command "l" and moving the cursor to -x direction(left) give 1unit .
- Moving the cursor to+ y direction (top), give 0.15 units.
- Moving the cursor to + x direction again give 1 unit and cursor to -y direction(downwards) give 0.15 unit.

Step:2 - Change the isometric drafting to iso-plane top
- Move the cursor to back and give 0.3 units from the last drawn point.
- Move the cursor to right direction and give 1 unit.
- Move the cursor to front and give 0.3 unit.

Step:3 - Change the isometric drafting to iso-plane right
- Copy the object drawn, ortho off .
- Command "co" and specify the base point and place it to new point.
- Repeat it until 4 steps are formed.

Step:4 - With iso-plane right join the two ends with ortho off.
Result: The steps are drawn in isometric view.

Isometric view of gable wall.
Aim: To draw the isometric view of gable wall.
Commands used:
- Line.
- Isometric plane.
Procedure:
- To work with isometric view -command "ds" - snap off, grid off. put isometric snap on
- Make sure that ortho mode is on
Step:1 - From isometric drafting select iso-plane left.
- Give command "l" and moving the cursor to right give 1 unit
- Pointing the cursor upwards give 3 units
- Draw 0.3 units to left and 3 units downwards and 0.3 units to left.

Step:2 - Using isometric right, take line command and draw line upwards of 2.42 units from the starting point of step 1
- Draw 1 unit towards the right and 2.42 units downwards.
- Using isometric left again, using line command draw 0.3 units to left side and draw a line which intersects the top line.

Step 3 – Using iso-metric right with the line command draw 1.0 unit to right Side and 3.0 units upwards.

Step:4 - By using the line command draw a line from bottom left corner @1.5 units and extend line 4 units upwards i.e., total 3.25 units from bottom.

Step :5 - With ortho off, draw a line between the corner of left side and the projected line done in step 4
- Draw it to the other side also till it meets the right corner.

Step:6 - Draw the vertical line with ortho on @0.3 and join the vertical line using line from left and right end same as in the step 5 remove unwanted lines by using erase.
Result: The isometric view of gable wall is drawn:
