AutoCAD

How to Change Ortho Angle in AutoCAD?

Understanding Ortho Mode in AutoCAD

Ortho mode is a crucial feature in AutoCAD that helps in drawing straight lines in specific orientations. It restricts cursor movement to vertical and horizontal paths, aligning them perfectly with the User Coordinate System (UCS). This functionality is particularly useful for creating precise 2D geometries, where measurements must be exact.

How to Enable Ortho Mode

1. **Start AutoCAD**: Launch the AutoCAD application on your device.
2. **Locate the Status Bar**: At the bottom of the AutoCAD window, find the status bar.
3. **Activate Ortho Mode**: Simply click on the ‘Ortho’ button on the status bar. You can also toggle it by pressing the F8 key. A blue background indicates that Ortho mode is active.

Changing the Ortho Angle in AutoCAD

To modify the orthogonal angle settings in AutoCAD, follow these detailed steps:

1. **Access the Command Line**: Click anywhere in the command area or press the spacebar to ensure you’re ready to input commands.

2. **Type the Command**: Enter ‘SNAPANG’ into the command line and press Enter. This command will allow you to adjust the angle settings.

3. **Set Your Desired Angle**: When prompted, input the angle you want for the ortho setting. For a traditional right angle, enter 90. For a change to a specific angle, enter the preferred degree (e.g., 45 for a diagonal effect).

4. **Confirm the Changes**: Press Enter to confirm the angle setting.

5. **Return to Ortho Mode**: After adjusting, toggle Ortho mode back on using the F8 key or the status bar to apply the new angle when drawing.

Switching Between Isoplanes

When working on isometric drawings, changing isoplanes can significantly affect your design. Here’s how:

1. **Enable Isometric Drawing**: Type ‘SETISODRAFT’ in the command line and hit Enter to enable isometric drafting mode.

2. **Change Isoplanes**: Use the F5 key to toggle between the different isoplanes—left, right, and top. Each press of F5 rotates the isoplane 90 degrees.

Drawing Lines at Specific Angles

To draw lines at a specific angle, follow this structured approach:

1. **Select the Line Tool**: Go to the Home tab, click on the Draw panel, and select the ‘Line’ tool.

2. **Specify Starting Point**: Click in the drawing area to set your line’s starting point.

3. **Enter the Angle**: Input the left angle bracket (<) followed by the angle in degrees (e.g., <45 for a 45-degree line) and press Enter.4. **Determine the Line Length**: Enter the desired length of your line and press Enter again.5. **Complete the Drawing**: Click to finalize the line placement, and ensure it follows the desired angle meticulously.

Frequently Asked Questions

**What is the purpose of Ortho mode in AutoCAD?**

Ortho mode is primarily used to ensure that lines can only be drawn vertically or horizontally, making it easier to create precise 2D geometries without angled distortions.

**How can I tell if Ortho mode is active?**

The status bar at the bottom of the AutoCAD interface will display a highlighted or colored icon representing Ortho mode when it is active. Encountering a blue background usually indicates it’s engaged.

**Can I customize the shortcut keys for Ortho mode?**

While the default shortcut for toggling Ortho mode is F8, you can customize key mappings in the AutoCAD options menu under the “User Preferences” section.

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.