AutoCAD

How to Use Script in AutoCAD?

Understanding the Basics of AutoCAD Scripts

AutoCAD scripts are specialized text files that contain a sequence of commands for AutoCAD to execute. These files, with a .scr extension, enable users to automate repetitive tasks, enhancing productivity and workflow in design work.

Executing a Script in AutoCAD

To run a script in AutoCAD, follow these steps:

  1. Initiate AutoCAD: Click the Windows Start button, then select ‘Run’.
  2. Enter the Command: In the Run dialog box, type the command in this format: acad drawing_name /b script_name.
  3. Launch the Script: Click OK to open the specific drawing and execute the script commands.

Creating an AutoCAD Script File

To create a script file for AutoCAD, follow these steps:

  1. Open a Text Editor: Use a simple text editor like Notepad.
  2. Write Your Commands: Type the sequence of AutoCAD commands you wish to automate.
  3. Save the File: Ensure to save the file with a .scr extension.

Importing an SCR File into AutoCAD

If you need to import a previously created SCR file into AutoCAD, adhere to the following steps:

  1. Download and Open the SCR File: Obtain the SCR file and open it in a text editor to ensure correctness.
  2. Add Coordinates: Insert the list of X, Y, Z coordinates required for your project after the first line.
  3. Save Changes: After editing, save and close the file.
  4. Open AutoCAD Drawing: Launch AutoCAD and the desired drawing.
  5. Import the SCR File: Simply drag and drop the SCR file into the AutoCAD model view window to execute the commands.

Automating Tasks in AutoCAD

AutoCAD allows for further automation through scripts and command macros. Here’s how:

  1. Understand Script Functions: Scripts are straightforward text files that execute sequences of commands, while macros run through the AutoCAD interface, typically linked to menu options or keyboard shortcuts.
  2. Explore AutoLISP: Consider using AutoLISP for more advanced scripting capabilities, as it adds flexibility to your automation processes.

Using VBA in AutoCAD

Visual Basic for Applications (VBA) functions as a powerful tool for automation within AutoCAD. To utilize VBA:

  1. Access the VBA Editor: Go to the Tools menu, select Macro, and then click on Visual Basic Editor.
  2. Insert a Module: Inside the editor, navigate to the Insert menu and select Module to create a new module.
  3. Input Your Code: Paste your VBA code into the newly created module.
  4. Save Your Project: Choose Save Global from the File menu and provide a name for your project.

Executing Commands Directly in AutoCAD

You can input commands directly within AutoCAD using these methods:

  1. Command Prompt Utilization: Type the command name in the command prompt and press Enter.
  2. Autocomplete Feature: If enabled, start typing the command for auto-suggestions.
  3. Using Command Aliases: Enter a shorter alias if one exists for the command.

Importing Text into AutoCAD

To import text data efficiently:

  1. Access the Annotation Panel: Click on the Home tab, then navigate to the Annotation panel.
  2. Create Multiline Text: Select Multiline Text and define the bounding box dimensions.
  3. Select the File: Right-click in the text editor and choose to import your text file, adjusting as necessary.

Importing XYZ Coordinates into AutoCAD

For importing XYZ coordinates, take the following steps:

  1. File Format Adjustment: Change the file extension from .xyz to .txt.
  2. Use MAPIMPORT Command: Execute the MAPIMPORT command.
  3. Select File Type: Choose ASCII Point File and format it correctly (comma or space delimited) based on your needs.
  4. Finalize Import: Click OK to load the file into your drawing.

Running Scripts in AutoCAD 2025

For AutoCAD 2025, you can run scripts by:

  1. Navigating to the Application Menu: In the Drafting & Annotation workspace, go to the Manage tab, then Applications.
  2. Execute the Script: Click on ‘Run Script’, select your script file, and then open it. The commands will execute as specified.

Frequently Asked Questions

1. What type of tasks can be automated using AutoCAD scripts?
Scripts can automate tasks such as drawing functions, object placements, and setting parameters tailored to specific projects.

2. Can I edit an existing script file?
Yes, script files are plain text files that can be opened and edited in any text editor.

3. Is there a way to test scripts before executing them on actual drawings?
It is advisable to run scripts on a test drawing first to ensure that the commands function as expected without affecting your main projects.

About the author

Wei Zhang

Wei Zhang

Wei Zhang is a renowned figure in the CAD (Computer-Aided Design) industry in Canada, with over 30 years of experience spanning his native China and Canada. As the founder of a CAD training center, Wei has been instrumental in shaping the skills of hundreds of technicians and engineers in technical drawing and CAD software applications. He is a certified developer with Autodesk, demonstrating his deep expertise and commitment to staying at the forefront of CAD technology. Wei’s passion for education and technology has not only made him a respected educator but also a key player in advancing CAD methodologies in various engineering sectors. His contributions have significantly impacted the way CAD is taught and applied in the professional world, bridging the gap between traditional drafting techniques and modern digital solutions.