Creating a Layout, Section and Elevation with dimensions using AutoCad

AIM:  To Draw The Plan, Elevation and Section Of The Building by Using AutoCAD

INTRODUCTION:  

Dimensioning in AutoCad:

• AutoCAD Provides  a whole range of dimensioning tools which can be used to quickly dimension any drawing without the need for measurement.
• AutoCAD dimensions are special blocks which can be easily edited or erased as necessary.
• AutoCAD divides dimensions into four main categorries: ;inear, radial, reegular an ordinate.

Dimensioning in AutoCad:inear dimension commands: 

• These are used to dimension along straight lines.
• There are five linear dimension commands, namely: DIMLINEAR, DIMCONTINUE, DIMBASELINE, DIMALINGNED, DIMROTATED.
• DIMLINEAR command is probably the most commonly used dimension command.
• This tool can be evoked from toolbar, pull down-->dimension-->Linear: keyboard Command: DIMLINEAR.

Continue dimension command:

• This command can be used to add a string of dimensions which aligns perfectly.
• This tool cab be evoked from toolbar; pulldown-->dimension--> baseline; Command: DIMCONTINUE.
• First we have to DIMLINEAR command, the rest can be continued using DIMCONTINUE command.

Baseline dimension command:

• This tool can be evoked from toolbar; pulldown-->dimension-->Aligned: Command: DIMALIGNED.
• This command is used to creat aligned dimensions.  These are dimensions along inclined lines which cannot be dimensioned wuith the DIMLINEAR.
• DIMCONTINUE and DIMBASELINE commands can be used in conjuction with DIMALIGNED dimensions.

Radial dimension command:

• There are mainly two radial dimension commands, DIMRADIUS and DIMDIAMETER.
• Both commands result in a similar looking dimension, so AutoCAD automatically inserts a R to indicates radius and the dimension symbol(%%c) to indicate dimension.

Diameter dimension command:

• This tool can be evoked from toolbar; pulldown-->dimension-->diameter; Command: DIMDIAMETER.
• Diameter command can be used to annotate a circle or an arc.
• To achieve this simply start the command, pick a point fon the circumference of the circle, pick second point to determine the length of the leader and then add the dimension text.

Rdius dumension command:

• This tool can be evoked from toolbar; pulldown-->dimension-->diameter-->radius Command: DIMRADIUS.
• This command is identical to the diameter command except that the dimension is radius and theresulting dimension is prefixed with "R" to indicate radius.

Angular dimension command:

• This tool can be evoked from toolbar; pulldown-->dimension--> Angular; Command: DIMANGULAR.
• This command is flexible and can be used to indicate an angle in almost any situation.

Ordinatre dimension command:

• This tool can be devoked from toolbar: pulldown -->dimension--> leader; Command: DIMORDINATE.
• This command is uised to annotate co-ordinate points with X or Y points.
• This may be useful for setting out onsite plans.

Annotation with leaders:

Leader command:

• This tool can be evoked form toolbar; pulldown-->dimension--> leader; Command: LEADER.
• This command is used to annotate any point on a drawing.

Dimension edit command:

• Command: DIMEDIT.
• Command is used to modify and change the text any number of dimensions.

Dimension text edit command:

• This tool can be evoked form toolbar; pulldown-->dimension--> align text-->options; Command: DIMTEDIT
• This command is used to modify the text position of aby single dimension.

Dimension update command:

• This tool can be evokedd from toolbar; pulldown-->dimension-->update; Command: DIM UPDATE.
• This command is used to apply the current dimension style to exsiting dimensions.

DEFAULT PROCEDURE: 

• Open AutoCAD application form my desktop.
• Click file menu to open new sheet.
• Slect default setting as METRIC
• Indefalut setting click on use a wizard and in that advacne setting and set unit as decimal and precision as 0 and press next
• Set Angle as Decimal Degree and precision as 0.
• Set Angle Measure as EAST and press NEXT
• Ser Area by providin as DEFAULT 12 X9
• Press finish 
• Keep ortho Obh=ject snap>ON
• Keep Snap and Grid > off

PLAN:

Aim: To creat the plan and section as given by using proper dimension techniques and dimension style.

Step by Step Procedure:

• Initially set the units of the drawing as Decimal (Millimeters).
• Now, set the limits of the drawing:
• Specify the lower left corner:(o,o)
• Specify the upper right corner:(40000,52000)

• Now, choose the XLINE command
• Put xline horizontal anbd xline vertical 
• Trim the negative co-ordinates
• Give the offset of 250mm to Show the external wall thickness
• Offset the horizontal line at a distacne of 1150,3138,4488,9463,12788,12913,16388.
• Give offset to each above horizontal lines as per their wall thickness
• For internal wall give offset of 125mm And for external wall give offset of 250mm
• Offset the vertical line at a distance of 3475,3675,5975,6850,7350,8725,10325,11700.
• Give offset ot each above vertical lines as per their wall thickness
• For internal wall give offset 125mm ND FOR ECTERNAL WQALL GIVE OFFSET OF 250MM
• Give the another required offsetrs by using offse command
• Leave the spaces for doors as per its dimension
• Take trim and erase command to remove the unwanted data as shown below

For Doors:

• D-100
• D1-700
• D2-900

For window:

• W-1000
• W1-900
• W2-1100
• W3-1300
• W4-550

• Take a rectangular command
• Specify its first corner anywhererr out of drawing
• Select dimension as Lenght as 250 and with as 400
• And take HATCH command to click dropdown , select the style AR CONCR
• Click inside the rectangle
• It will show you following result with dimension.

• Now put the coloumn to where required place in plan as given below the dig.
• For Sunshade selet the dash layer
• Click the line type >Other
• Load >select ACAD_ISO3W100
• Enter Use line command to show the window shade as whown below.

Annotation:

• To creat the text and dimention by useing Annotation style and Font Name Height scale.

• Final Diagram with TEXT, DIMENSION, bY using annotation are given below:

• Now provide colours to plan by using following layer properties for all three plans, Section-AA, and Section-BB as shown in below 
• 

Result: Here the final result of fthe PLAN Shown in below:

• For the clear view of the diagram is given below:

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SECTION:-AA

• Inorder to draw the section, by projection of using Xline command and elevate the parts through which the given section cuts.
• Choose line command and draw the out line of the section as per the dimension given in the figure
• Staircse section is also drawn using line command: sraircase connecting groundfloor and 1st floor has riser dimension 150mm and treaddimension is 250mm.

• Now the section is complete by providing necessasryb text and dimension by using Annotation method like above plan
• 

• Now apply to colours for every line and text, dimension by using layer properties.
• Here as same layer properties are using to aplly the diagram 
• 

Result: Here the final result of fthe SECTION-AA Shown in below:

• For the clear view of the diagram is given below:

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SECTION:-BB

• Inorder to draw this section, choose XLINE command (Hrizontal ) and elevate the elements side ways from the section given in the plan.
• Now to creat the outline of the section and then trim iff the unwanted lines.
• 
• Now, comolete the figure by providing  necessasry texts and dimension by using Multitext, And Annotation methods.
• 
• Now apply to colours for every line and text, dimension by using layer properties.
• Here as same layer properties are using to aplly the diagram 
• 
• 

Result: Here the final result of fthe SECTION-AA Shown in below:

• 
• For the clear view of the diagram is given below:

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ALL FINAL RESULT:   

The plan, section-AA and section-BB of the given drawing is complete and is obtained as follows:

1. Pan:

2. Section-AA:

3. Section-BB:

FUL PLAN :

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