Select Shape
TransformMirror from the main menu bar to transform the part in the current viewport into a mirror image of itself. This operation is similar to copying a part and using the mirror option (“Copying a part,” Section 11.5). However, transforming the original part retains the complete feature creation history and the ability to edit those features. You can choose to keep both the original geometry and the mirrored geometry, and you can select any planar face or datum plane as the mirror plane.
The mirror tool is available only when the current viewport contains a three-dimensional solid or shell part. Mirror features, like all features, can be deleted, suppressed, and resumed; however, a mirror feature contains no modifiable parameters, so it cannot be edited after you create it.
To mirror a part:
From the main menu bar, select ShapeTransformMirror.
Tip:
You can also mirror a part using the 
tool, located in the Part module toolbox. For a diagram of the tools in the Part module toolbox, see “Using the Part module toolbox,” Section 11.17.
From the prompt area, toggle on Keep original geometry to retain the original geometry when the part is mirrored.
From the prompt area, toggle on Keep internal boundaries to retain any intersecting boundaries between the original geometry and the new geometry when the part is mirrored.
This option has no effect if used without Keep original geometry.
Select a datum plane or planar face from the viewport.
Abaqus/CAE creates the mirrored geometry using the options you chose.
