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Welcome to CG Online Tutorials - Learn how to draw a rectangle in this short tutorial.
 
 

  AutoCAD Tutorials

Drawing Rectangles - Tutorial for beginners 

 
Written by Puttaswamy  
Friday, 05 April 2013
Category AutoCAD - Basic and Drawing  
 
In this segment of tutorial exercise you will have an oppurtunity to learn how to Draw Rectangles using different options like Chamfer, Elevation, Fillet, Thickness or Width using AutoCAD. You can draw rectangels by specifying two opposite corners of the rectangle, by specifying the area and the size of one of the sides, or by specifying the dimensions of the rectangle. We shall learn all these methods of creating rectangles in the later part of this tutorial.
 
Step 1
To invoke the RECTANG command, you have to select 'Rectangle' icon from the toolbar or from select "Rectangle" command from Draw drop down menu or you can just type "rectangle" or just "rec" ('rec' does not work to invoke Rectangle command than you have to check you acad.pgp and whether it has been enter as rec for rectangle command or not, if needed you have make the necessary changes and save the file. You can find acad.php file go to 'Tools >> Customize >> Edit Program Parameters (acad.pgp), this is the file which stores shell commands and command alias definitions {a program parameters file in ASCII text form}. The file itself is not migrated; however, any command aliases you created in this file are copied to the AutoCAD acad.pgp file.) in the command prompt as shown in Figure 1. {Click the link to learn how to open a AutoCAD session}.
 
Figure 1.
 
Step 2
There are many ways to draw Rectangles, like 1) Drawing Rectangle Using Two Opposite Corners, 2) Creating Rectangle by Specifying the Area and One Side, 3) Creating Rectangle by Specifying its Dimensions, 4) Creating Rectangle at an specified rotation Angle, 5) Creating Rectangle with Chamfer, 6) Creating Rectangle with Elevation, 7) Creating Rectangle with Fillet, 8) Creating Rectangle with Thickness and 9) Creating Rectangle with Width option. Let us start learning how all the options work, one by one, let us start with the first one i.e. creating a Rectangle using two opposite corners. Once you are in the 'Rectangle' command you are prompted to specify the first corner of the rectangle. You can specify the location by using a pointing device or you can enter the coordinate values of the location. I prefer coordinates system so I am going to work with it, for the first corner I have entered a value of 10,10 and immediately you are prompted to enter values of the location of the second corner (opposite corner), for which I have entered a value of 60,90 as shown below. So now we have created a Rectangle with 80 units length and 50 units width values.
 
Figure 2.
 
Step 3
Now let us create Rectangle by specifying the Area and dimension of One Side. This option allows you to draw the rectangle, by specifying its area and the value of any one of the sides (i.e. either 'Length' or 'Width'). When you are prompted to specify the location of the first corner of the rectangle, after invoking the Rectangle command, let us enter 10,10 units as the location of the first corner point. When prompted to specify other corner point just type 'A' in the command prompt. Now you would be asked to enter area of rectangle in current units, let us enter 2400 as the area of rectangle, after you enter the area you would be prompted to select 'Length/Width' to calculate the rectangle dimension, let us enter 'l' in the command prompt to select 'Length'. Now let us enter rectangle's length value, for which I have entered 60 units as shown below.
 
Figure 3.
 
Step 4
Now let us create Rectangle by specifying its dimensions. In this case it is possible to draw Rectangle by entering 'D' at the 'Specify other corner point or [Area/Dimensions/Rotation] prompt, which then allows you to enter the lenght and width of the rectangle. The prompt sequence for this procedure is as follows, invoke 'Rectangle' command and the specify first corner point by entering 10,10 as shown below. When prompt to specify other corner point, let us enter 'D' in the command prompt. Now you would be prompt to specify the length and width of the rectangle, let us enter a value of 80 units for length and a value of 50 units for width of the rectangle as shown below. In this option you are allowed to choose any one of the four locations for placing the rectangle. You can move the cursor to see the four locations. Depending on the location of the cursor, the specified first corner point holds the position of either the lower left corner, the lower right corner, the upper right corner, or th upper left corner. Once you decide the position you have to click and place the rectangle using pointing device as shown below.
 
Figure 4.
 
Step 5
Now let us create Rectangle at Rotation Angle. In this method we can create Rectangle by entering R at the 'Specify other corner point or [Area/Dimensions/Rotation] prompt. With this option AutoCAD has enhanced its ability to create rectangle at an angle, which allows you to enter the rotation angle. After entering the rotation angle, you can continue sizing the rectangle using any of the methods. So let us start creating the Rectangle at an angle, first let us invoke Rectangle command, let us enter a value of 10,10 as the location of the first corner point of the Rectangle. Now let us enter 'R' when prompt to specify other corner point and then enter '30' when prompt to specify rotation angle as shown below. When prompt to specify other corner point enter coordinates value of 60,120 as shown below. Please note that, once you have specified the rotation angle, next time whenever you draw the Rectangle, it will be drawn at an angle, so set the rotation angle back to zero, if you do not want to draw the reactangle at an angle.
 
Figure 5.
 
Step 6
Now let us create Rectangle with Chamfer. The Chmfer option creates a chamfer, which is an angled corner, by specifying the chamfer distances. The chamfer is created at all the four corners. You can give two different chamfer values to create an unequal chamfer. Let us invoke Rectangle command and then when prompt to specify the first corner point of the rectangle let us enter 'C' in the command prompt, now you would be prompt to specify first chamfer distance for the rectangle, let us enter a value of 3 units and then when prompt to specify the second chamfer distance for the rectangle let us enter enter value of 5 units. NOw you would be prompt to specify first corner point of the rectangle, let us enter a coordinate value of 10,10 and when prompt to specify other corner point let us enter coordinate value of 80,50 as shown below.
 
Figure 6.
 
Step 7
Now let us create Rectangle with fillet. The Fillet option allows you to create a filleted rectangle. You can specify the required fillet radius. Here is how it is done, first let un invoke Rectangle command and when prompt to specify the first corner point of the rectangle let us type 'F' in the command prompt. Now you will be prompt to specify fillet radius for rectangle, let us enter a value of '6' (Please keep in mind that the rectangle will be filleted only if length and width of the rectangle are equal to or more than twice the value of the specified fillet otherwise AutoCAD will create a rectangle without fillet. For this example if you enter fillet radius for rectangle as 26, AutoCAD will create a rectangle without fillet). Now you have to specify first corner point of the rectangle for which I have entered coordinates value of 10,10 and then let us enter coordinates value of 80,50 when prompt to specify other corner point of the rectangle as shown below.
 
Figure 7.
 
Step 8
Now let us create Rectangle with 'Width' option, which allows you to create a rectangle whose line segments have some specified width. This is how it works, let us invoke Rectangle command and then enter 'W' when prompt to specify first corner point of the Rectangle. Now you have to specify line width for rectangle, which is also polyline width of the Rectangle to be drawn for which I have a value of '1'. Now you have to specify first and other corner point of the rectangle by entering 10,10 and 80,50 as shown below.
 
Figure 8.
 
Step 9
Finally let us create Rectangle with 'Thickness' option, which allows you to create a rectangle that is extruded in the 'Z' direction by the specified value of thickness. In this example, we shall create a rectangle with thickness of 30 units and you will get a rectangular box whose height is 40 units. This is how it is done, first let us invoke Rectangle command and when prompt to specify first corner point of the rectangle let us enter 'T' in the command prompt. Now let us enter a value of 30 units when prompt to specify thickness for rectangle. Remaining steps would to specify the first and other corner point of the rectangle for which let us enter 10,10 and 80,50 respectively as shown below. That is it we have gone through all the options available to create a rectangular polyline, I hope you enjoyed this tutorial.
 
Figure 9.
 
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