You can create a block library made up of the pieces you need many times in your workday. Using blocks can help reduce file size. If you need to change something, you can redefine a block. In AutoCAD, a block is a collection of objects that are combined into a single named object.
The following are some examples of blocks at different scales. A block is a combination of AutoCAD object types that form a real-world object. For example, it could be a chair, a sewer, a door, a utility pole, you name it. In the context of AutoCAD, blocks are the set of geometries that act as a single object and can be used in a drawing on a repetitive basis.
The blocks used in the drawing are called block references, and if the block is modified, all of its references change automatically. The fact that blocks can be selected means that you can easily insert them into drawings and move them between them. Groups have a bit of a similarity to blocks and can also be used in places where you want to create an object from various geometries. The DWG source file containing the lines of the block will be saved in the location of your choice.
This is why many organizations prefer their own set of standard blocks that can be used and reused according to their own requirements. For example, I want to add one more circle to this block, so I'll use the offset command and the offset value to draw one more circle in this block. The ByBlock property allows you to change the properties of each object in the block to use the block property (for example, if you use blocks to create windows on a floor plan and, after adding them, decide to modify the type of window). If you're not using blocks in your drawings, you'd better start soon because you're missing out on some of the incredible advantages of AutoCAD blocks.
Typically, each of these blocks is an individual drawing file, perhaps stored in a folder with similar drawing files. However, to understand how blocks work within and between drawings, it's a good idea to know how the WBLOCK command works. If you have multiple block instances in your drawing, the objects in the block will adopt the layer properties of the block for whatever layer each block is on. By configuring it, you can insert the block into other drawings with different units and scale automatically.
You can enter the information from steps 3, 4, and 5 in the Block Definition dialog box in any order. In addition to creating your own set of blocks and using the design center or the tool palette, you can also use other resources to obtain CAD blocks for your projects. You can create two blocks, each with its own layer properties, or you can take advantage of some really interesting functionality in AutoCAD.