How Do I Change the Units of an Existing Drawing in AutoCAD?

AutoCAD is a powerful software used by designers and engineers to create precise drawings. Often, you may find yourself needing to change the units of an existing drawing in AutoCAD. Whether it’s converting from millimeters to inches or from centimeters to meters, this tutorial will guide you through the process step by step.

Step 1: Open the Drawing

First, open the drawing that you want to change the units for in AutoCAD. You can do this by navigating to the “File” menu and selecting “Open” or by using the keyboard shortcut Ctrl + O.

Step 2: Accessing the Drawing Units

Once your drawing is open, navigate to the “Format” menu and select “Drawing Setup” or use the keyboard shortcut Ctrl + Shift + D. This will open the “Drawing Setup” dialog box.

Subheader: Changing Linear Units

In the “Drawing Setup” dialog box, click on the “Units” tab. Here, you will see various options for changing different unit types such as linear, angular, and scale factors. For this tutorial, we will focus on changing linear units.

Note: Changing linear units will affect all objects in your drawing.

  • To change the linear units, click on the drop-down menu next to “Insertion scale.” This will display a list of available unit types such as inches, feet, millimeters, centimeters, meters, etc.
  • Select your desired unit type from the list.

    For example, if you want to change from millimeters to inches, select “Inches. “

  • Click OK to apply the changes and close the dialog box.

Subheader: Changing Angular Units

In addition to linear units, AutoCAD also allows you to change angular units. To do this:

  • In the “Drawing Setup” dialog box, click on the “Units” tab.
  • Under the “Angle” section, click on the drop-down menu next to “Format.”
  • Select your desired angular unit type from the list, such as degrees, radians, or gradians.
  • Click OK to apply the changes and close the dialog box.

Step 3: Verifying the Changes

Once you have changed the units in your drawing, it’s important to verify that the changes have been applied correctly. You can do this by measuring a known distance in your drawing using AutoCAD’s measurement tools and comparing it to its real-world equivalent.

Note: If you have existing objects in your drawing that were created with different unit settings, they may not scale correctly when you change the units. It’s always a good idea to double-check and adjust any objects that are affected by unit changes.

Congratulations! You have successfully changed the units of an existing drawing in AutoCAD. Remember to save your changes by selecting “Save” from the “File” menu or using Ctrl + S.

Using AutoCAD’s flexibility to change units allows you to work seamlessly with drawings from different sources or adapt your project requirements easily. Now you can confidently modify drawings with different unit systems without compromising accuracy or efficiency!