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FreeCAD: How to hollow out a solid?

FreeCAD 0.19

In Part workbench

  1. Create new documentnew document icon and a shape.

    Thickness1
    Creates a shape

  2. Switch workbench to Part workbenchPart workbench.

  3. Select a face of solid in 3D view. Select "Thickness"Part_Thickness to display a parameter settings dialog.

    Thickness-Tasks
    Thickness dialog (Part workbench)

    The solid is hollowed out and the selected face is opened.

    Thickness2
    Thickness3

  4. The thickness of wall can be specified at "Thickness" in the dialog.

    Thickness3
    Thickness: 1.0
    Thickness4
    Thickness: 5.0

  5. Junction type of walls can be switched by changing the type to [Intersection] at "Join type" in the dialog.

    Thickness3
    Join type: Arc
    Thickness5
    Join type: Intersection

  6. After parameter settings, click OK to execute the hollowing out operation.

Note: You can also hollow out a solid with multiple selecting faces.

Thickness6
Selects multiple faces
Thickness7
The hollowing result

In Part Design workbench

You can hollow the shape that is made in Part Design workbench with Part Design workbench's "Thickness"Part_Thickness.

Thickness-Tasks
Thickness dialog (Part Design workbench)

Similar to the Thickness tool in the Part Workbench, you can change the wall thickness with "Thickness" and the wall joining method with "Join type".