# MIRROR3D Command [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [Commands](Help%20System/GSTARCAD/2021/Commands/(Commands).md) → [M](Help%20System/GSTARCAD/2021/Commands/M/(M).md) The MIRROR3D command is used to create mirrored copies of selected objects. ## Command Access: > ****Ribbon:**** 3D \> 3D Operations \> 3D Mirror **Menu:** Modify \> 3D Operations \> 3D Mirror **Command:** MIRROR3D ## Command Prompts: > Select object: > Specify first point of mirror plane (3 points) or > \[Object/Last/Zaxis/View/XY/YZ/ZX/3points\]\<3points\>: > Specify second point of mirror plane: > Specify third point of mirror plane: > Delete source objects? \[Yes/No\]\<N\>: Relative Glossary: **Object:** Specify a mirroring plane by selecting a planar object. The planar object could be a circle, an arc, or a 2D polyline segment.   **Last:** Mirror selected objects by the previously defined mirroring plane. **Zaxis:** Use one point on plane and another point on the normal of the plane to define mirror plane.  **View:** Align the mirroring plane to the current viewing plane and through a specified point.  **XY/YZ/ZX:** Select one point and define a plane contains the selected point and parallel with a standard plane (XY, YZ or ZX). The mirroring plane is aligned with the defined plane.    **3points:** Specify a mirror plane by 3 points. If selecting this option, it will not display the following prompt: Specify first point of mirror plane.  ## Other versions with matching text [GstarCAD 2016](../../../2016/Commands/M/MIRROR3D%20Command.md) · [GstarCAD 2017](../../../2017/Commands/M/MIRROR3D%20Command.md) · [GstarCAD 2018](Help%20System/GSTARCAD/2018/Commands/M/MIRROR3D%20Command.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/Commands/M/MIRROR3D%20Command.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/Commands/M/MIRROR3D%20Command.md)