Blender 3D Printing by Example

Adding a Mirror Modifier

Now, we are ready to add the Mirror Modifier to our model to copy and flip our base along the X axis. The steps are:

1. In Object Mode and right-click on the object (in this case, the cube) to select it.
2. In the Properties Window, click on the wrench icon to access the Modifiers.

3. Click on the Add Modifier drop-down and select Mirror:

Adding a new Mirror

4. Mirror options will appear at the bottom of your Modifiers list. In this case, it'll be listed under the Boolean Union Modifier we added earlier. For Axis, make sure X is selected as we want to copy and mirror our X coordinates.
5. Under Options, uncheck Merge. The