AutoCAD

How To Disable 3D In AutoCAD?

Understanding 3D Functionality in AutoCAD

AutoCAD, a widely used computer-aided design software, offers immense capabilities for both 2D and 3D modeling. However, users may find themselves needing to switch off 3D functionality for various reasons, such as simplifying their workspace or focusing solely on 2D drawings.

Steps to Disable 3D Object Snaps

  1. Access the OSNAP Command: Begin by typing the command "OSNAP" into the command line and hit Enter. This opens the Object Snap settings dialog.

  2. Select 3D Object Snap Tab: In the Object Snap settings window, navigate to the ‘3D Object Snap’ tab.

  3. Disable 3D Object Snap: Look for the checkbox labeled “3D Object Snap On.” Uncheck this box to turn off 3D snapping. This action will prevent AutoCAD from snapping to 3D objects as you draw or edit.

  4. Confirm Changes: Click OK to apply your changes and close the menu.

Using Workspaces for 2D Focus

  1. Open Workspace Options: From the Quick Access toolbar, locate the Workspaces drop-down menu. Alternatively, you can click on the Workspace Switching button on your status bar.

  2. Switch to 2D Drafting Workspace: In the workspace options, select the "Drafting and Annotation" workspace. This workspace is optimized for 2D design tasks, minimizing 3D features.

  3. Adjust the View Settings: To ensure that your view is set to 2D, go to the View tab. Click on the View Manager, and choose a 2D view such as ‘Top’ or ‘Front’. This will direct your workspace’s focus to 2D elements.

Flatting 3D Objects

  1. Disable any Hatch Layers: If you have any hatch patterns that might interfere with the flattening process, turn them off or freeze their layers.

  2. Invoke the FLATTEN Command: Type “FLATTEN” into the command line and hit Enter. The program will prompt you to select the objects you wish to flatten.

  3. Select Objects: Click on the 3D objects you want to convert to 2D and press Enter.

  4. Avoid Removing Hidden Lines: When prompted whether to remove hidden lines, type “N” for No. This step retains all visible outlines and shapes without losing data.

Managing Grips in AutoCAD

  1. Understanding Grips: Grips are small blue squares that appear when you select objects within AutoCAD. They allow for easy manipulation of those objects.

  2. Disabling Grips for 3D Models: To turn off these grips, press the F4 key on your keyboard. If you’re using a Mac, you might need to press fn + F4. This action disables 3D grips.

  3. Using the 3DOSNAP Command: Alternately, type “3DOSNAP” into the command line and press Enter. Select ‘Disable’ to turn off the 3D snapping feature.

Frequently Asked Questions

Q1: How can I ensure my AutoCAD session is entirely in 2D?
A1: To ensure a completely 2D session, it’s important to switch to the 2D Drafting and Annotation workspace and disable any 3D object snaps as well as grips. Utilize the FLATTEN command for any necessary 3D objects to convert them into 2D representations.

Q2: What other commands can help me focus on 2D work in AutoCAD?
A2: Apart from the FLATTEN command, you can utilize tools like "LINE," "POLYLINE," and "CIRCLE" in the 2D space. Additionally, ensuring your layers are set appropriately for 2D can eliminate any 3D interference.

Q3: Can I switch back to 3D modeling easily if needed?
A3: Yes, switching back to 3D modeling is simple. Just return to the Workspaces drop-down menu and select the 3D Modeling workspace. You can also enable the 3D object snap features again through the OSNAP settings when you want to work in 3D.

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.