Introduction to AutoCAD Blocks and Why You Should use them?

  • By
  • May 14, 2022
  • AutoCAD

Introduction to AutoCAD blocks and why you should use them –

Blocks are one of the most important types of AutoCAD and are widely used in almost all types of drawings. If you do not use blocks in your drawings you should start better soon because you are missing out on some of the amazing benefits of AutoCAD blocks.

What are Blocks ?

In the context of AutoCAD, blocks are a geometric group that acts as a single object and can be used in drawing repeatedly. The blocks used in a drawing are called a reference reference and when you turn a block all directions automatically change.

Blocks can be a simple set of vertical geometry or you can make blocks with flexible structures and these types of blocks are called dynamic blocks.we can also create 3d blocks.

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Why you should use Blocks ?

As I mentioned earlier one of the main reasons for using the block is its ability to modify all its indicators by changing one block.

For example, if you use blocks to create windows floor plan and after adding windows you decide to change the type of window. In this case, you can simply change the block and all of the indicators used in the drawing will change automatically.

Blocks also help you keep file size controlled. A drawing made of repetitive blocks will be much smaller than a drawing using copied objects for repetitive objects.

 

 

Blocks also help maintain similarity in the drawings of your project, by using the same set of blocks you can avoid much confusion between the different members working on the project. This is why many organizations choose their own set of standard blocks that can be used and reused according to their needs.

You can also track blocking data using attributes. Attributes are information such as the manufacturer’s name, part number etc. associated with a block and can be exported to an excel file or drawing table.

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Block vs Group –

Groups have little resemblance to blocks and can be used in areas where you want to do something with multiple geometries. Groups do not have the same items as blocks, but if you want to split as many items as one unit then teams are your best option.

Dynamic Blocks –

If you add flexible structures to a simple block so that its geometry and properties can be changed to use its individual reference then you get a flexible block. In the case of flexible blocks, you can extend it to a specified length, you can make decorated copies, you can browse its direction or shape etc.

For example, you can make a flexible door block of different sizes and if used in the drawing you can use the same flexible block in all door sizes.

Using the Design Center blocks –

AutoCAD has a small library of some standard blocks that you can use in your drawings, this block library can be accessed from the design center palette. To open the design center you can use the keyboard shortcut CTRL + 2 or you can use its DC command.

 

 

A design center is a palette like the architect or layer manager palette. In the design center palette click on the home icon and select the en-us folder then select the DesignCenter folder and select the type of drawing from which you want to extract blocks.

For example, you can use the kitchens.dwg file for kitchen blocks and House Designer.dwg for standard house blocks. After selecting a drawing select Blocks in the object type and you now have a set of blocks that you can add to your drawing with a simple drag and drop.

 

 

You can also use the design center to remove the blocks from the existing drawing. Just click on the open icon at the top left of the design center and find your drawing and open it in the design center palette.

Now navigate to the drawing and select the blocks and you will have your complete list of blocks from the drawing to the palette. You can drag and drop these blocks to bring them to your current drawing.

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Using Tool Palettes in Blocks –

AutoCAD also has many simple and flexible blocks in the toolbar. You can access the toolbar by using its keyboard shortcut CTRL + 3 or its command TOOLPALETTES.

 

 

The toolbar has many common blocks (especially flexible blocks) that you can use directly on your drawing by dragging and dropping them into your drawing. You can also create your own tool palette and place your favorite CAD blocks in it, or you can create a whole catalog of your standard cad blocks using toolbars.

What is a writing block?

You can create your own blocks using the AutoCAD Write Block (WBLOCK) command. You can think of WBLOCK as a way to separate a block in a diagram and send it to your home.

To save the block as dwg you can choose to write the block command in the ribbon bar on the input tab or you can use the shortcut key W. Then a block dialog box will appear. Select a source as a block. Then select the block you want to save as dwg and press ok.

 

 

Benefits of CAD Blocks –

Here are some of the key benefits of CAD blocks outlined below.

1)Minimize Repetitive Tasks

CAD Blocks are useful if users need to use the feature multiple times in the drawing. Not only during the initial blocking of the timekeeping item but when an update is needed can also save you time.

2)Accuracy

Assuming you start with an accurate CAD block, the use of the same CAD item or block during drawing or translation ensures consistency, eliminating errors that may arise as a result of redesigning the object at any time. On the other hand, when designing sophisticated materials, being able to download the part or model you need immediately from the manufacturer or retailer shows that you have the precise length and specificity that you can apply to your design.

3)Reduced File Sizes

File size is reduced by inserting content instead of redefining object data each time a block is used. Only your CAD program should have a place to insert and rotate, re-using the geometry of the object from the first block. This can make a huge difference in performance during the operational phase of large projects.

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4)Save Match

Drawings and models contain a set of CAD levels presented in a concise and consistent manner. There is an important factor that can improve efficiency and reduce possible errors in your drawings. So you should have title blocks, plumbing and connectors regularly from one drawing to another drawing regardless of the CAD user category.

 

Author:-

Rohan Vairagar

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