How to Mirror Copy in AutoCAD?

Understanding the Mirror Function in AutoCAD

Mirroring is a vital feature in AutoCAD that allows designers to create symmetrical designs efficiently. This guide will walk you through the process of mirroring objects comfortably and accurately.

Steps to Mirror an Object in AutoCAD

1. Prepare Your Workspace:

   • Begin by ensuring that no commands are currently active. If needed, press the Esc key to reset.

2. Access the Mirror Command:

   • Locate the “Mirror” option on the Home tab under the Modify panel. You may also activate it by typing MI into the command prompt followed by pressing Enter.

3. Select Your Objects:

   • Use your cursor to highlight the objects you wish to mirror. Ensure at least one item is selected. Once done, press Enter to finalize your selection.

4. Define the Mirror Line:

   • You will be prompted to specify a mirror line. Click two points on your workspace to define this line, which will serve as the axis of reflection.

5. Preview the Mirrored Object:

   • AutoCAD will give you a visual preview of where the new, mirrored object will appear. This is your opportunity to confirm the alignment and spacing.

6. Decide on the Original Object:

   • Next, you’ll see an option asking if you would like to delete the original object after mirroring. Type Y for yes if you want it removed or N for no if you’d like to keep it.
7. Finalizing the Command:
   • Press Enter to complete the mirror command. The mirrored copy will now be placed according to the axis you defined.

Specifics about Text Mirroring

By default, mirrored text may not appear reversed. If reversing the direction of your text is necessary, adjust the MIRRTEXT system variable to 1 before executing the mirror command. This ensures that text objects are flipped correctly along with your other designs.

Differences Between Mirror and Copy

Understanding the distinction between the mirror function and the copy command is crucial. While a copied object acts as a direct clone, retaining its attributes and behavior, a mirrored object is a new instance reflecting the original design. Each mirrored object retains some functional independence, allowing interaction with various commands while maintaining a unique identity.

Mirroring 3D Objects

For 3D designs, the process follows a similar pattern:

1. Access the 3D Mirror Tool:

   • Navigate to the Home tab, and select 3D Mirror from the Modify panel.

2. Select the 3D Object:

   • Choose the object you want to mirror and proceed by specifying three points that define your mirroring plane.
3. Confirm Mirroring:
   • Decide whether to keep the original object. Press Enter to retain it or type Y to delete it after the mirroring process is complete.

FAQs

1. Can I mirror more than one object at a time?
Yes, you can select multiple objects to mirror in one operation by holding down the mouse button and dragging to select or by clicking each object individually.

2. What should I do if my mirrored text appears upside down?
Adjust the MIRRTEXT variable to 1 before the mirroring process to ensure the text mirrors correctly. This will reverse the text direction appropriately.

3. How can I undo a mirror action if I change my mind?
You can easily undo the mirroring by pressing Ctrl + Z, which will revert the last command, restoring the original object to your drawing.