Feature

Introduzione

In FreeCAD the word "Feature" is normally used to refer to a PartDesign Feature object (PartDesign::Feature class) that is defined by the PartDesign Workbench. This is an operation or modelling step performed to create or modify a solid Shape following the feature editing paradigm.

See PartDesign Feature for more information about this type of object.

Utilizzo

1. Switch to the PartDesign Workbench.
2. Press PartDesign Body.
3. Press PartDesign NewSketch to create a new Sketch.
4. Create a closed wire, and then use PartDesign Pad to extrude the sketch, and create an initial solid. This initial solid is the initial Feature.
5. Add more sketches and pads, and use other tools of the PartDesign Workbench to modify and transform the initial solid. Each of these steps correspond to Features of the Body.
6. Alternatively, add primitive objects, like PartDesign Additive box and PartDesign Subtractive cylinder. Any number of additive and subtractive steps are Features that are used to create a final volume.

Note

In the general sense, a "Feature" can be any modelling step used to create a final Shape, with any tool of any workbench.

• For example, in the Part Workbench, in the constructive solid geometry workflow, a "Feature" could be any boolean operation, like Part Fuse, Part Cut, or Part Common.

In a more specific sense, a "Feature" is a modelling step used inside a PartDesign Body.

• For example, PartDesign Additive cylinder, PartDesign Additive loft, PartDesign Pocket, PartDesign Subtractive cone, etc., are all "Features".

PartDesign

• Structure tools: Part, Group
• Helper tools: Create body, Create sketch, Edit sketch, Map sketch to face

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• Modeling tools
  • Datum tools: Create a datum point, Create a datum line, Create a datum plane, Create a local coordinate system, Create a shape binder, Create a sub-object shape binder, Create a clone
  • Additive tools: Pad, Revolution, Additive loft, Additive pipe, Additive helix, Additive box, Additive cylinder, Additive sphere, Additive cone, Additive ellipsoid, Additive torus, Additive prism, Additive wedge
  • Subtractive tools: Pocket, Hole, Groove, Subtractive loft, Subtractive pipe, Subtractive helix, Subtractive box, Subtractive cylinder, Subtractive sphere, Subtractive cone, Subtractive ellipsoid, Subtractive torus, Subtractive prism, ‎Subtractive wedge

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• Transformation tools: Mirrored, Linear Pattern, Polar Pattern, Create MultiTransform
• Dress-up tools: Fillet, Chamfer, Draft, Thickness
• Boolean: Boolean operation

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• Extras: Migrate, Sprocket, Involute gear, Shaft design wizard
• Context menu: Set tip, Move object to other body, Move object after other object, Appearance, Set colors

Part

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

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• 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

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

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

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• 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, Set colors

Oggetti del documento

• Cuore: App DocumentObject
• Base: App FeaturePython, App GeoFeature, Part Feature, Mesh Feature, Fem FemMeshObject
• Forme interne: Part TopoShape, Mesh MeshObject, Fem FemMesh

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• Struttura: App DocumentObjectGroup (Std Group), App Part (Std Part), App Link
• Derivate: Part Part2DObject, Sketcher SketchObject, PartDesign Body, PartDesign Feature

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• Spiegazione: Model, Shape, Body, Feature, Part, Mesh, Sketch, Drawing

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

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• Help: Tutorials, Video tutorials
• Workbenches: Std Base, Arch, Draft, FEM, Image, Inspection, Mesh, OpenSCAD, Part, PartDesign, Path, Points, Raytracing, Reverse Engineering, Sketcher, Spreadsheet, Start, Surface, TechDraw, Test Framework, Web
• Deprecated or unmaintained workbenches: Complete, Drawing, Robot

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• Addons: Addon Manager, External workbenches, Scripting and macros

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• Hubs: User hub, Power users hub, Developer hub