Skip to main content

​
AutoCAD Plugin

The Algomim AutoCAD plugin connects AutoCAD to the AI assistant, letting you create and modify drawings, manage layers, query objects, and automate tasks through conversation.

​
Supported Versions

  • Autodesk AutoCAD 2023
  • Autodesk AutoCAD 2024
  • Autodesk AutoCAD 2025
  • Autodesk AutoCAD 2026

​
Installation

1

Download the installer

Download the AutoCAD plugin installer from the Settings page in chat.algomim.com.
2

Close AutoCAD

Make sure AutoCAD is completely closed before installing.
3

Run the installer

Double-click the downloaded .exe file and follow the setup wizard.
4

Start AutoCAD

Launch AutoCAD. The plugin loads automatically.
The plugin installs to %AppData%\Autodesk\ApplicationPlugins\AlgomimAutoCAD.bundle\.

​
Connecting to Algomim

1

Open a drawing

Open an AutoCAD drawing (or create a new one).
2

Run the connect command

Type ALGOMIM in the AutoCAD command line and press Enter.
3

Get your PIN

In the Algomim web app, start a new chat and click the Connect button (plug icon). Copy the 6-digit PIN.
4

Enter the PIN

Enter the PIN when prompted in AutoCAD. The command line will confirm a successful connection.

​
What You Can Do

The AI writes C# scripts using the AutoCAD .NET API. Common operations include:

​
Drawing & Geometry

  • Draw lines, polylines, circles, arcs, and other geometric primitives
  • Create and modify blocks and block references
  • Hatch areas and add dimensions

​
Layers & Organization

  • Create, rename, and manage layers
  • Set layer colors, linetypes, and properties
  • Move objects between layers

​
Object Manipulation

  • Select, move, copy, rotate, scale, and mirror objects
  • Modify object properties (color, linetype, lineweight)
  • Explode blocks and join entities

​
Data & Queries

  • List objects by type or layer
  • Count elements
  • Read and write extended data (XData)
For AutoCAD-specific prompting tips, see AutoCAD Best Practices.

​
Script Context

When the AI writes C# scripts for AutoCAD, it has access to these context variables:
VariableTypeDescription
docDocumentThe active AutoCAD document
dbDatabaseThe drawing database
edEditorThe editor for user interaction and selection
In AutoCAD, you manage your own transactions. The AI wraps operations in db.TransactionManager.StartTransaction() — changes can be undone with Ctrl+Z.

​
Troubleshooting

  • Check that the plugin bundle exists in %AppData%\Autodesk\ApplicationPlugins\
  • Restart AutoCAD after installation
  • Type NETLOAD and manually load the Algomim DLL if needed
  • Verify your internet connection
  • Generate a new PIN if the current one expired
  • Check firewall settings for outbound WebSocket connections

​
Updating the Plugin

Download the latest installer from the Settings page in the Algomim web app and run it. The installer replaces the previous version automatically.