AutoCAD

How to Use Ortho Command in AutoCAD?

Understanding the Ortho Command in AutoCAD

The Ortho command is a crucial feature in AutoCAD that enhances precision in drawing by constraining cursor movement. When active, it limits the cursor angle to only horizontal and vertical directions. This is particularly beneficial during the drafting process, enabling users to create straight lines and shapes without deviation from these key axes.

Benefits of Using Ortho Mode

Ortho mode improves accuracy when specifying points, especially during tasks requiring strict alignment. By restricting movement to two dimensions, it simplifies drawing straight lines and rectangles. This functionality prevents unintended angles, making it easier to adhere to design specifications.

Activating Ortho Mode

To enable Ortho mode, follow these steps:

  1. Locate the Toggle Key: Press the F8 key on your keyboard. This key acts as a switch, turning Ortho mode on and off.
  2. Visual Confirmation: Look for the Ortho icon in the status bar at the bottom of the AutoCAD window. When highlighted, it confirms that Ortho mode is active.
  3. Begin Drawing: Once activated, move the cursor, and you’ll notice it can only move in straight lines vertically or horizontally.

Disabling Ortho Mode

To turn off Ortho mode, simply press the F8 key again. This action restores the cursor’s free movement across all angles, allowing for more flexible drawing options.

Ortho Mode vs. Polar Tracking

Ortho mode and polar tracking serve different purposes but cannot be used simultaneously. While Ortho mode is limited to 90-degree angles, polar tracking allows for custom angle settings, even as fine as 1 degree. This distinction is key when choosing how to approach your drawing tasks in AutoCAD.

Practical Applications of Ortho Mode

Using Ortho mode is particularly useful in various scenarios:

  • Creating Grids: Aligning units along a grid system.
  • Drafting Walls: Ensuring walls are built vertically and horizontally without deviation.
  • Designing Rectangles: Quickly forming rectangles and squares with precision.

Adjusting Other Drawing Modes

While Ortho mode offers enhanced straight-line drawing, you can also toggle other modes for flexibility:

  • F9: Toggles Snap mode, which allows you to snap your cursor to defined points.
  • F10: Toggles Polar tracking, helping in creating angles other than 90 degrees.

Step-by-Step Use of Ortho Command in Drawing

  1. Open AutoCAD: Start your AutoCAD 2025 application.
  2. Setup Your Drawing Environment: Choose the right workspace and set your User Coordinate System (UCS) if needed.
  3. Enable Ortho Mode: Press F8 to activate.
  4. Begin Drawing: Click your starting point, then move your cursor. Notice how it snaps to the horizontal or vertical lines.
  5. Specify End Point: Click again to set the endpoint of your line.
  6. Continue Drawing: Repeat the process to create additional lines or shapes, ensuring alignment as required.

Frequently Asked Questions

What happens when I try to draw with Ortho mode off?
When Ortho mode is disabled, the cursor can move freely in any direction, allowing for curved lines and angles other than 90 degrees. This provides more flexibility but requires more careful alignment.

Can I use Ortho mode with other features active?
Ortho mode can be used in conjunction with other features such as Snap mode and Object Snap, enhancing both precision and speed in your drafting tasks.

Is there a visual indicator for Ortho mode?
Yes, the status bar at the bottom of the AutoCAD interface displays the Ortho icon. When it is highlighted, Ortho mode is active.

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.