How to Load Lisp in AutoCAD 2015?

Understanding AutoLISP in AutoCAD

AutoLISP is a powerful programming language tailored specifically for AutoCAD and its various derivatives. It allows users to automate tasks, customize commands, and create complex workflows, enhancing productivity significantly.

Steps to Load a LISP File in AutoCAD 2025

Step 1: Access the APPLOAD Command

• Begin by typing APPLOAD in the command line and press Enter. This opens the Load/Unload Applications dialog box.

Step 2: Navigate to the Startup Suite

• Within the dialog box, find the "Startup Suite" section. Here, you’ll see an option labeled "Contents." Click on this button to view the current suite of LISP files.

Step 3: Adding New LISP Files

• Click the "Add" button. This action allows you to browse through your computer’s directories.
• Locate the folder containing your desired .lsp file. Select the file and click "Open."

Step 4: Confirm and Close

• After you have added all the required LISP routines to the Startup Suite, click "Close" to exit the dialog. The added LISP files will now load automatically each time you start AutoCAD.

Using the CUI Command for LISP Loading

Step 1: Open the CUI Editor

• Type CUI in the command line and hit Enter to launch the Customize User Interface dialog.

Step 2: Locate the Appropriate .cuix File

• In the CUI editor, find and select the acad.cuix file or another custom .cuix file that you want to utilize.

Step 3: Add LISP Files

• Identify the "LISP Files" section within the CUI. Right-click on it and choose “Load LISP” from the context menu.
• Once again, navigate to the folder where your LISP file is stored, select it, and click “Open.”

Step 4: Finalize Your Changes

• Click “Apply” to save your changes in the CUI editor. Once finished, you can close the dialog box.

Saving LISP Files Properly

When saving your LISP file, ensure you use the correct format. Open a text editor like Notepad:

• Type your LISP code.
• Save the file with a .lsp extension, for example, “YourLISPFile.lsp”.

FAQs

Can AutoCAD LT use AutoLISP?
No, AutoCAD LT does not support AutoLISP or any LISP commands. The APPLOAD command is also unavailable in this version.

Where can I find my saved LISP files?
LISP files can typically be saved in any user-defined folder. However, it’s advisable to keep them in a location designated for AutoCAD support files, set in the Options under "Files" and "Support File Search Path".

What is the purpose of scripting in AutoCAD?
Scripts are text files with a .scr extension that contain a series of AutoCAD commands. They automate repetitive tasks and can significantly speed up workflow by executing commands in sequence without manual input.