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Mirror Mesh Feature

In one sentence: Mirror a selected mesh about a user-specified axis, creating a mirrored copy as a new Mesh::Feature.

Overview

Workbench: OpenSCAD
Menu: OpenSCAD → Mirror Mesh Feature
Shortcut: none

Presents a dialog for selecting the mirror axis as a vector [x;y;z]. Preset options include the three principal axes and diagonal combinations. The original mesh is hidden and a new Mesh::Feature named mirror_<original> is created with the mirrored geometry.

Intuition

Mirroring a mesh is like placing it in front of a flat mirror and creating a copy of the reflection. The mirror plane is perpendicular to the specified axis and passes through the mesh's bounding box centre.

When to use it

  • You have a half-model of a symmetric part (scanned or imported) and want to reflect it to create the full symmetric shape.
  • You need a mirrored copy for interference checking.

When NOT to use it

  • For Part solids, use Part → Mirror or Part Design → Mirrored — those produce proper B-rep geometry. This tool is for meshes only.

Step-by-step

  1. Select a Mesh::Feature object.
  2. Choose OpenSCAD → Mirror Mesh Feature.
  3. A dialog appears. Enter the mirror axis vector (e.g. [1;0;0] for X axis) or pick a preset.
  4. Click OK. The original is hidden and mirror_<name> is created.

Parameters

Parameter Description
Axis vector Mirror axis as [x;y;z]. The mirror plane is perpendicular to this axis. Presets: [1;0;0], [0;1;0], [0;0;1], diagonals.

Python API

import FreeCADGui as Gui
Gui.doCommand("Gui.runCommand('OpenSCAD_MirrorMeshFeature', 0)")

See also