symmetrical side makes your life a lot easier because we can create

only half of the shape and mirror the other side.

In Blender, you have a few options to work with symmetrical models

starting with the Mirror tool and going up until the Mirror Modifier used in

Chapter 4.

The Mirror tool in Blender works with the CTRL+M key, which inverts

any selected objects. You won't get a mirrored copy with the tool, but an

inverted version of the model. For instance, we can take the model

shown in Figure 3.28, representing only half of a 3D object.

Figure 3.28 - Half of a model

If you go to Object Mode and press CTRL+M or use the Object →

Mirror menu, you can invert the object shape. For the shortcut, you

must press a key representing the axis in which the mirror will happen

(Figure 3.29). Press the key corresponding to an axis after the CTRL+M.