In AutoCAD, dynamic blocks can be incredibly useful for creating MEP (Mechanical, Electrical, Plumbing) systems as they allow you to create parametrically controlled blocks. They enable you to modify and manipulate objects with ease, adjusting their size, orientation, and other properties dynamically. Here's a general guide on creating a basic dynamic block for an MEP system:

Design the basic elements of your MEP system, such as pipes, valves, or electrical components, using standard AutoCAD commands.

Once your elements are drawn, convert them into a block by typing "BLOCK" in the command line. Specify a name for your block and select the objects to include in the block.

Type "BEDIT" in the command line and select the block you want to make dynamic.Use the Block Editor to add parameters and actions to your block. For example

Remember, creating dynamic blocks can get quite intricate, especially for complex MEP systems. It's often beneficial to plan out what parameters and actions you need beforehand to streamline the process.

AutoCAD's dynamic block feature is powerful but might require practice and experimentation to master. Additionally, exploring AutoCAD forums, tutorials, or specific MEP-related resources can provide valuable insights and techniques for creating efficient dynamic blocks tailored to MEP systems.