Part Defeaturing: Difference between revisions

Revision as of 11:50, 26 April 2021

Other languages:

CheckGeometry

Face Colors

Part

Menu location
Part Defeaturing
Part → Defeaturing
Workbenches
Part
Default shortcut
None
Introduced in version
0.18
See also
None

Description

The Defeaturing tool is intended for removal of selected features from the model. In this context, features are meant as holes, protrusions, gaps, chamfers, fillets etc. found on the model.

The defeaturing tool 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 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 tool 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) on the model to remove.
Press the Defeaturing button.
A new object is created labeled Defeatured in the Model tree view, and the original object is hidden from view.

Links

3D Model Defeaturing, the official announcement on the Open Cascade collaborative development portal.
Freecad 0.18 Defeaturing, a video demonstration (in German) on a complex model on PeerTube; even without understanding the language, it is pretty easy to follow.
Defeaturing Workbench

CheckGeometry

Face Colors

Part

Primitives: Box, Cylinder, Sphere, Cone, Torus, Tube, Create primitives, Shape builder

Creation and modification: Extrude, Revolve, Mirror, Fillet, Chamfer, Make face from wires, Ruled Surface, Loft, Sweep, Section, Cross sections, 3D Offset, 2D Offset, Thickness, Projection on surface, Attachment

Boolean: Make compound, Explode Compound, Compound Filter, Boolean, Cut, Fuse, Common, Connect, Embed, Cutout, Boolean fragments, Slice apart, Slice, XOR

Measure: Measure Linear, Measure Angular, Measure Refresh, Clear All, Toggle All, Toggle 3D, Toggle Delta

Other tools: Import, Export, Box selection, Shape from Mesh, Points from mesh, Convert to solid, Reverse shapes, Create simple copy, Create transformed copy, Create shape element copy, Refine shape, Check geometry, Defeaturing, Appearance, Color per face

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, Arch, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Start, Surface, TechDraw, Test Framework, Web

Addons: Addon Manager, External workbenches, Scripting and macros

Hubs: User hub, Power users hub, Developer hub

@@ Line 28: / Line 28: @@
 <!--T:13-->
-* To edit an imported solid where no history of operations is available;
+* 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;
+* Model simplification for numeric analysis, display on mobile devices, etc.
 <!--T:14-->
@@ Line 36: / Line 36: @@
 <!--T:15-->
-To be available, this tool 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.
+To be available, this tool 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|Defeaturing Workbench]] add-on, which proposes similar functionality even with older versions of OCC or FreeCAD.