How Do You Convert Orthographic to Isometric in Autocad?

How Do You Convert Orthographic to Isometric in Autocad?

Autocad is a powerful tool that allows you to create precise and detailed drawings. One of the most common tasks in Autocad is converting orthographic projections to isometric projections. In this tutorial, we will explore the step-by-step process of converting orthographic to isometric in Autocad.

Understanding Orthographic and Isometric Projections

Before we dive into the conversion process, let’s first understand what orthographic and isometric projections are.

Orthographic Projection:

An orthographic projection represents a three-dimensional object using two or more two-dimensional views. These views are typically drawn on separate planes, such as front, top, and side views. Each view shows the object from a different direction without any perspective or depth.

Isometric Projection:

An isometric projection represents a three-dimensional object on a two-dimensional plane. Unlike orthographic projections, an isometric projection shows all three dimensions of an object with equal foreshortening along each axis. This creates a more realistic representation of the object.

The Conversion Process

Step 1: Set Up Your Workspace

Open Autocad and create a new drawing or open an existing one. Make sure you have all the necessary tools and options visible for easy access during the conversion process.

Step 2: Create Orthographic Views

Create the necessary orthographic views of the object you want to convert. This typically includes front, top, and side views. Use the appropriate commands in Autocad to draw these views accurately.

Step 3: Determine the Isometric Orientation

Decide on the orientation of the isometric projection. Autocad provides different isometric orientations, such as isoplane left, right, top, and bottom. Choose the orientation that best suits your needs.

Step 4: Set the Snap and Grid Settings

To ensure accurate placement of objects in the isometric projection, adjust the snap and grid settings in Autocad. Set the snap mode to isometric and enable the grid display to align objects correctly.

Step 5: Start Drawing in Isometric

Switch to an isometric view using the appropriate Autocad command or toolbar option. Begin drawing or copying the objects from your orthographic views onto this new isometric view. Align each object according to their corresponding positions in the orthographic views.

Step 6: Apply Isometric Scale

Apply an isometric scale factor to ensure proper proportions in your isometric projection. Autocad provides predefined scale factors for different orientations. Use the appropriate scale factor based on your chosen orientation.

Step 7: Add Details and Dimensions

Add any additional details or dimensions required for your isometric projection. This may include labels, annotations, measurements, or any other relevant information.


Congratulations! You have successfully converted an orthographic projection to an isometric projection in Autocad. By following this step-by-step process and utilizing Autocad’s powerful tools and features, you can create accurate and visually appealing isometric drawings.

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Now that you have learned how to convert orthographic to isometric in Autocad, you can apply this knowledge to create impressive drawings for various projects. Keep practicing and exploring Autocad’s features to enhance your skills further.