Block libraries are available on the Library tab of the Blocks palette. This video shows how to specify a shared folder or file to configure the block library. The idea is to set up drawings that are empty, except for blocks, and share them as block libraries. 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. Users use other methods such as Insert, Palettes, ADC and Windows Drag and Drop to place their blocks, since AutoCAD is very flexible and all that. Instead, you can save all the blocks as separate drawings in a folder and insert them from that folder. In previous posts, I explained how to insert blocks from the Tool Palettes window, DesignCenter, and Content Explorer.
After selecting the drawing, select Blocks in the object type and you now have a collection of blocks that you can insert into the drawing by simply dragging and dropping. I explain how to create a drawing from a block in my advice: “Write blocks to save as separate files”. Especially these blocks are suitable for making architectural drawings and will be useful for architects and designers. As I mentioned earlier, one of the main reasons for using a block is its ability to modify all of its references by modifying a single block.
A drawing made with blocks for repetitive objects will be much smaller than a drawing that uses copied instances of repetitive objects. You can also create your own tool palette and place your favorite CAD blocks on it, or you can create a complete catalog of your standard CAD blocks using tool palettes. I have all my most common blocks in a single file that I insert into my drawings, and then each block is available in the drop-down list of insert blocks. Blocks also help maintain consistency in project drawings.
By using the same set of blocks, you can avoid a lot of confusion between the different members working on a project.