Description
The
Part Defeaturing command can remove selected form features, such as holes, protrusions, gaps, chamfers, fillets etc. from a model.
The defeaturing command can be very useful in different contexts:
- To edit an imported solid where no history of operations is available.
- Fixing defects in the model, e.g. filling gaps, holes etc.
- Model simplification for numeric analysis, display on mobile devices, etc.
The removed form features are filled by the extension of the adjacent faces, thus no unexpected parts should appear in the result. Please note that the result is a new shape that is not linked to the original; thus, it is non-parametric.
To be available, this command requires FreeCAD to be based on Open Cascade 7.3.0 or greater. If it is not available in your version of FreeCAD, you may have a look at the Defeaturing Workbench add-on, which proposes similar functionality even with older versions of OCC or FreeCAD.
Usage
- Select the face(s) to be removed from the model.
- There are several ways to invoke the command:
- Press the
Defeaturing button.
- Select the Part →
Defeaturing option from the menu.
- A Defeatured object is created and the original object hidden.
Links
- 3D Model Defeaturing, the official announcement on the Open Cascade collaborative development portal.
Part
- Creation and modification: New Sketch, Extrude, Revolve, Mirror, Scale, Fillet, Chamfer, Face From Wires, Ruled Surface, Loft, Sweep, Section, Cross-Sections, 3D Offset, 2D Offset, Thickness, Project on Surface, Appearance per Face
- Boolean: Compound, Explode Compound, Compound Filter, Boolean Operation, Cut, Union, Intersection, Connect Shapes, Embed Shapes, Cutout Shape, Boolean Fragments, Slice Apart, Slice to Compound, Boolean XOR, Check Geometry, Defeaturing
- Other tools: Box Selection, Shape From Mesh, Points From Shape, Convert to Solid, Reverse Shapes, Simple Copy, Transformed Copy, Shape Element Copy, Refine Shape, Set Tolerance, Persistent Section Cut, Attachment
User documentation
- Getting started
- Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
- Basics: About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties, Help FreeCAD, Donate
- Help: Tutorials, Video tutorials
- Workbenches: Std Base, Assembly, BIM, CAM, Draft, FEM, Inspection, Material, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework