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{{Docnav
{{Docnav
|[[OpenSCAD Module|OpenSCAD Module]]
|[[OpenSCAD_Workbench|OpenSCAD Workbench]]
|[[PartDesign Workbench|PartDesign Workbench]]
|[[PartDesign_Workbench|PartDesign Workbench]]
|IconL=Workbench_OpenSCAD.svg
|IconL=Workbench_OpenSCAD.svg
|IconR=Workbench_PartDesign.svg
|IconR=Workbench_PartDesign.svg
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[[Image:Workbench_Part.svg|thumb|128px|Part workbench icon]]
[[Image:Workbench_Part.svg|thumb|128px|Part workbench icon]]

{{TOCright}}
{{TOCright}}

== Introduction ==

<div class="mw-translate-fuzzy">
<div class="mw-translate-fuzzy">
FreeCAD 的電腦輔助設計功能建構於 [http://en.wikipedia.org/wiki/Open_CASCADE OpenCasCade] 核心。物件坊讓 FreeCAD 取用 OpenCasCade 物件與功能。OpenCasCade 是一專業級電腦輔助設計核心,善於空間幾何控制與物件。不同於 [[Mesh Module/zh-tw|網狀模組]] 物件,物體物件更加複雜,因此容許更多進階操作,例如一致布林操作、修改歷史和參數行為。
FreeCAD 的電腦輔助設計功能建構於 [http://en.wikipedia.org/wiki/Open_CASCADE OpenCasCade] 核心。物件坊讓 FreeCAD 取用 OpenCasCade 物件與功能。OpenCasCade 是一專業級電腦輔助設計核心,善於空間幾何控制與物件。不同於 [[Mesh Workbench/zh-tw|網狀模組]] 物件,物體物件更加複雜,因此容許更多進階操作,例如一致布林操作、修改歷史和參數行為。
</div>
</div>


A more detailed discussion of Part workbench versus Part Design workbench can be found here: [[Part_and_PartDesign|Part and Part Design]].
The objects created with the Part Workbench are relatively simple; they are intended to be used with boolean operations (unions and cuts) in order to build more complex shapes. '''This modeling paradigm is known as the [[constructive solid geometry]] (CSG) workflow, and it was the traditional methodology used in early CAD systems.''' On the other hand, the [[PartDesign Workbench|PartDesign Workbench]] provides a more modern workflow to constructing shapes: it uses a parametrically defined sketch, that is extruded to form a basic solid body, which is then modified by parametric transformations ([[feature editing|feature editing]]), until the final object is obtained.

The objects created with the Part Workbench are relatively simple; they are intended to be used with boolean operations (unions and cuts) in order to build more complex shapes. '''This modeling paradigm is known as the [[Constructive_solid_geometry|constructive solid geometry]] (CSG) workflow, and it was the traditional methodology used in early CAD systems.''' On the other hand, the [[PartDesign_Workbench|PartDesign Workbench]] provides a more modern workflow to constructing shapes: it uses a parametrically defined sketch, that is extruded to form a basic solid body, which is then modified by parametric transformations ([[feature_editing|feature editing]]), until the final object is obtained.


Part objects are more complex than mesh objects created with the [[Mesh Workbench|Mesh Workbench]], as they permit more advanced operations like coherent boolean operations, modifications history, and parametric behaviour.
Part objects are more complex than mesh objects created with the [[Mesh_Workbench|Mesh Workbench]], as they permit more advanced operations like coherent boolean operations, modifications history, and parametric behaviour.


[[Image:Part_Workbench_relationships.svg|600px]]
[[Image:Part_Workbench_relationships.svg|600px]]
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<div class="mw-translate-fuzzy">
===Primitives===
===Primitives===
</div>


These are tools for creating primitive objects.
These are tools for creating primitive objects.


* [[Image:Part_Box.svg|32px]] [[Part_Box|Box]]: Draws a box by specifying its dimensions
* [[Image:Part_Box.svg|32px]] [[Part_Box|Box]]: Creates a box.
* [[Image:Part_Cylinder.svg|32px]] [[Part_Cylinder|Cylinder]]: Draws a cylinder by specifying its dimensions
* [[Image:Part_Sphere.svg|32px]] [[Part_Sphere|Sphere]]: Draws a sphere by specifying its dimensions
* [[Image:Part_Cone.svg|32px]] [[Part_Cone|Cone]]: Draws a cone by specifying its dimensions
* [[Image:Part_Torus.svg|32px]] [[Part_Torus|Torus]]: Draws a torus (ring) by specifying its dimensions
* [[File:Part_Tube.svg|32px]] [[Part_Tube|Tube]]: draws a tube by specifying its internal radius and external radius. {{Version|0.19}}
* [[Image:Part_Primitives.svg|32px]] [[Part_Primitives|Primitives]]: A tool to add any of the defined geometric primitives.
* [[Image:Part_Shapebuilder.svg|32px]] [[Part_Builder|Shapebuilder]]: A tool to create more complex shapes from various parametric geometric primitives


* [[Image:Part_Cylinder.svg|32px]] [[Part_Cylinder|Cylinder]]: Creates a cylinder.
===Modifying objects===


* [[Image:Part_Sphere.svg|32px]] [[Part_Sphere|Sphere]]: Creates a sphere.
These are tools for modifying existing objects. They will allow you to choose which object to modify.


* [[Image:Part_Extrude.svg|32px]] [[Part_Extrude|Extrude]]: Extrudes planar faces of an object
* [[Image:Part_Cone.svg|32px]] [[Part_Cone|Cone]]: Creates a cone.

* [[Image:Part_Revolve.svg|32px]] [[Part_Revolve|Revolve]]: Creates a solid by revolving another object (not solid) around an axis
* [[Image:Part_Mirror.svg|32px]] [[Part_Mirror|Mirror]]: Mirrors the selected object on a given mirror plane
* [[Image:Part_Torus.svg|32px]] [[Part_Torus|Torus]]: Creates a torus.

* [[Image:Part_Fillet.svg|32px]] [[Part_Fillet|Fillet]]: Fillets (rounds) edges of an object
* [[Image:Part_Chamfer.svg|32px]] [[Part_Chamfer|Chamfer]]: Chamfers edges of an object
* [[File:Part_Tube.svg|32px]] [[Part_Tube|Tube]]: Creates a tube. {{Version|0.19}}

* [[Image:Part_RuledSurface.svg|32px]] [[Part_RuledSurface|Ruled Surface]]:
* [[Image:Part_Loft.svg|32px]] [[Part_Loft|Loft]]: Lofts from one profile to another
* [[Image:Part_Primitives.svg|32px]] [[Part_Primitives|Create primitives...]]: A tool to create one of the following primitives:
* [[Image:Part_Sweep.svg|32px]] [[Part_Sweep|Sweep]]: Sweeps one or more profiles along a path
**[[Image:Part_Plane.svg|32px]] [[Part_Plane|Plane]]: Creates a plane.
**[[Image:Tree_Part_Box_Parametric.svg|32px]] [[Part_Box|Box]]: Creates a box. This object can also be created with the [[Image:Part_Box.svg|32px]] [[Part_Box|Box]] tool.
**[[Image:Tree_Part_Cylinder_Parametric.svg|32px]] [[Part_Cylinder|Cylinder]]: Creates a cylinder. This object can also be created with the [[Image:Part_Cylinder.svg|32px]] [[Part_Cylinder|Cylinder]] tool.
**[[Image:Tree_Part_Cone_Parametric.svg|32px]] [[Part_Cone|Cone]]: Creates a cone. This object can also be created with the [[Image:Part_Cone.svg|32px]] [[Part_Cone|Cone]] tool.
**[[Image:Tree_Part_Sphere_Parametric.svg|32px]] [[Part_Sphere|Sphere]]: Creates a sphere. This object can also be created with the [[Image:Part_Sphere.svg|32px]] [[Part_Sphere|Sphere]] tool.
**[[Image:Part_Ellipsoid.svg|32px]] [[Part_Ellipsoid|Ellipsoid]]: Creates a ellipsoid.
**[[Image:Tree_Part_Torus_Parametric.svg|32px]] [[Part_Torus|Torus]]: Creates a torus. This object can also be created with the [[Image:Part_Torus.svg|32px]] [[Part_Torus|Torus]] tool.
**[[Image:Part_Prism.svg|32px]] [[Part_Prism|Prism]]: Creates a prism.
**[[Image:Part_Wedge.svg|32px]] [[Part_Wedge|Wedge]]: Creates a wedge.
**[[Image:Part_Helix.svg|32px]] [[Part_Helix|Helix]]: Creates a helix.
**[[Image:Part_Spiral.svg|32px]] [[Part_Spiral|Spiral]]: Creates a spiral.
**[[Image:Part_Circle.svg|32px]] [[Part_Circle|Circle]]: Creates a circular arc.
**[[Image:Part_Ellipse.svg|32px]] [[Part_Ellipse|Ellipse]]: Creates an elliptical arc.
**[[Image:Part_Point.svg|32px]] [[Part_Point|Point]]: Creates a point.
**[[Image:Part_Line.svg|32px]] [[Part_Line|Line]]: Creates a line.
**[[Image:Part_RegularPolygon.svg|32px]] [[Part_RegularPolygon|Regular polygon]]: Creates a regular polygon.

* [[Image:Part_Builder.svg|32px]] [[Part_Builder|Shape builder...]]: Creates shapes from various primitives.

=== Creation and modification ===

These are tools for creating new and modifying existing objects.

* [[Image:Part_Extrude.svg|32px]] [[Part_Extrude|Extrude]]: Extrudes planar faces.

* [[Image:Part_Revolve.svg|32px]] [[Part_Revolve|Revolve]]: Creates a solid by revolving an object (not a solid) around an axis.

* [[Image:Part_Mirror.svg|32px]] [[Part_Mirror|Mirror]]: Mirrors the selected object across a mirror plane.

* [[Image:Part_Fillet.svg|32px]] [[Part_Fillet|Fillet]]: Fillets (rounds) edges of an object.

* [[Image:Part_Chamfer.svg|32px]] [[Part_Chamfer|Chamfer]]: Chamfers edges of an object.

* [[File:Part_MakeFace.svg|32px]] [[Part_MakeFace|Make face from wires]]: Makes a face from a set of wires (contours). {{Version|0.19}}

* [[Image:Part_RuledSurface.svg|32px]] [[Part_RuledSurface|Ruled Surface]]: Creates a ruled surface.

* [[Image:Part_Loft.svg|32px]] [[Part_Loft|Loft]]: Lofts from one profile to another.

* [[Image:Part_Sweep.svg|32px]] [[Part_Sweep|Sweep]]: Sweeps one or more profiles along a path.

* [[Image:Part_Section.svg|32px]] [[Part_Section|Section]]: Creates a section by intersecting an object with a section plane.

* [[Image:Part_CrossSections.svg|32px]] [[Part_CrossSections|Cross sections...]]: Creates one or more cross-sections through an object.


* [[Image:Part_CompOffsetTools.png|48px]] [[Part_CompOffsetTools|Offset tools]]:
* [[Image:Part_CompOffsetTools.png|48px]] [[Part_CompOffsetTools|Offset tools]]:
** [[Image:Part_Offset.svg|32px]] [[Part_Offset|3D Offset]]: Constructs a parallel shape at a certain distance from original.
** [[Image:Part_Offset.svg|32px]] [[Part_Offset|3D Offset]]: Constructs a parallel shape at a certain distance from an original.
** [[Image:Part_Offset2D.svg|32px]] [[Part_Offset2D|2D Offset]]: Constructs a parallel wire at certain distance from original, or enlarges/shrinks a planar face. {{Version|0.17}}
** [[Image:Part_Offset2D.svg|32px]] [[Part_Offset2D|2D Offset]]: Constructs a parallel wire at certain distance from an original, or enlarges/shrinks a planar face.


* [[Image:Part_Thickness.svg|32px]] [[Part_Thickness|Thickness]]: Hollows out a solid, leaving openings next to select faces.
* [[Image:Part_Thickness.svg|32px]] [[Part_Thickness|Thickness]]: Hollows out a solid.


* [[File:Part_ProjectionOnSurface.svg|32px]] [[Part_ProjectionOnSurface|Projection on surface]]: Project a logo, text or any face,wire,edge to a surface. With the projection part it is possible to create a solid or wire. {{Version|0.19}}
* [[File:Part_ProjectionOnSurface.svg|32px]] [[Part_ProjectionOnSurface|Projection on surface]]: Projects a logo, text or any face, wire or edge onto a surface. {{Version|0.19}}


* [[Image:Part_EditAttachment.svg|32px]] [[Part_EditAttachment|Attachment]]: Attaches an object to another object.
* [[Image:Part_Compound.svg|48px]] [[Part_CompCompoundTools|Compound Tools]]:

=== Boolean ===

These tools perform boolean operations.

* [[Image:Part_CompCompoundTools.png|48px]] [[Part_CompCompoundTools|Compound Tools]]:
** [[Image:Part_Compound.svg|32px]] [[Part_Compound|Make compound]]: Creates a compound from the selected objects.
** [[Image:Part_Compound.svg|32px]] [[Part_Compound|Make compound]]: Creates a compound from the selected objects.
** [[Image:Part_ExplodeCompound.svg|32px]] [[Part_ExplodeCompound|Explode Compound]]: Tool to split up compounds of shapes
** [[Image:Part_ExplodeCompound.svg|32px]] [[Part_ExplodeCompound|Explode Compound]]: Splits up compounds.
** [[Image:Part Compound‏‎Filter.svg|32px]] [[Part Compound‏‎Filter|Compound Filter]]: The CompoundFilter can be used to extract the individual pieces.
** [[Image:Part Compound‏‎Filter.svg|32px]] [[Part_Compound‏‎Filter|Compound Filter]]: Extracts the individual pieces from compounds.


* [[Image:Part_Booleans.svg|32px]] [[Part_Boolean|Boolean]]: Performs boolean operations on objects
* [[Image:Part_Boolean.svg|32px]] [[Part_Boolean|Boolean]]: Performs boolean operations on objects.
* [[Image:Part_Fuse.svg|32px]] [[Part_Union|Union]]: Fuses (unions) two objects
* [[Image:Part_Common.svg|32px]] [[Part_Common|Common]]: Extracts the common (intersection) part of two objects
* [[Image:Part_Cut.svg|32px]] [[Part_Cut|Cut]]: Cuts (subtracts) one object from another


* [[Image:Part_Cut.svg|32px]] [[Part_Cut|Cut]]: Cuts (subtracts) one object from another.
* [[Image:Part_CompJoinFeatures.png|48px]] [[Part CompJoinFeatures|Join features]]: smart booleans for walled objects (e.g., pipes) {{Version|0.16}}
** [[Image:Part_JoinConnect.svg|32px]] [[Part_JoinConnect|Connect]]: Connects interiors of objects {{Version|0.16}}
** [[Image:Part_JoinEmbed.svg|32px]] [[Part_JoinEmbed|Embed]]: Embeds a walled object into another walled object {{Version|0.16}}
** [[Image:Part_JoinCutout.svg|32px]] [[Part_JoinCutout|Cutout]]: Creates a cutout in a wall of an object for another walled object {{Version|0.16}}


* [[Image:Part_Fuse.svg|32px]] [[Part_Fuse|Fuse]]: Fuses (unions) two objects.
* [[Image:Part_CompSplittingTools.png|48px]] [[Part CompSplittingTools|Splitting tools]]: {{Version|0.17}}
** [[Image:Part_BooleanFragments.svg|32px]] [[Part_BooleanFragments|Boolean fragments]]: makes all the pieces that can be obtained by Boolean operations between objects {{Version|0.17}}
** [[Image:Part SliceApart.svg|32px]] [[Part_SliceApart|Slice a part]]: tool to split shapes by intersection with other shapes
** [[Image:Part_Slice.svg|32px]] [[Part_Slice|Slice]]: Splits an object into pieces by intersections with another object {{Version|0.17}}
** [[Image:Part_XOR.svg|32px]] [[Part_XOR|XOR]]: removes space shared by even number of objects (symmetric version of [[Part_Cut|Cut]]) {{Version|0.17}}


* [[Image:Part Defeaturing.svg|32px]] [[Part_Defeaturing|Defeaturing]]: {{Version|0.18}}
* [[Image:Part_Common.svg|32px]] [[Part_Common|Common]]: Extracts the common (intersection) part of two objects.

* [[Image:Part_Section.svg|32px]] [[Part_Section|Section]]: Creates a section by intersecting an object with a section plane
* [[Image:Part_CompJoinFeatures.png|48px]] [[Part CompJoinFeatures|Join features]]:
* [[Image:Part_CrossSections.svg|32px]] [[Part_SectionCross|Cross sections...]]: Creates one or more cross-sections through a selected shape
* [[Image:Part Attachment.svg|32px]] [[Part Attachment|Attachment]]: attachment is a utility to attach an object to another one.
** [[Image:Part_JoinConnect.svg|32px]] [[Part_JoinConnect|Connect]]: Connects interiors of walled objects.
** [[Image:Part_JoinEmbed.svg|32px]] [[Part_JoinEmbed|Embed]]: Embeds a walled object into another walled object.
** [[Image:Part_JoinCutout.svg|32px]] [[Part_JoinCutout|Cutout]]: Creates a cutout in a wall of an object for another walled object.

* [[Image:Part_CompSplittingTools.png|48px]] [[Part CompSplittingTools|Splitting tools]]:
** [[Image:Part_BooleanFragments.svg|32px]] [[Part_BooleanFragments|Boolean fragments]]: Creates all pieces obtained from Boolean operations.
** [[Image:Part SliceApart.svg|32px]] [[Part_SliceApart|Slice apart]]: Slices and splits an object by intersecting it with other objects.
** [[Image:Part_Slice.svg|32px]] [[Part_Slice|Slice]]: Slices an object by intersecting it with other objects.
** [[Image:Part_XOR.svg|32px]] [[Part_XOR|XOR]]: Removes space shared by an even number of objects.


=== Measure ===
=== Measure ===


[[File:Part Measure Menu.png|64px]] [[Part Measure Menu|Measure]]: Allows linear and angular measurement between points, edges, and faces.
[[File:Part Measure Menu.png|64px]] [[Part Measure Menu|Measure]]: Tools for linear and angular measurements.


* [[Image:Part_Measure_Linear.svg|32px]] [[Part_Measure_Linear|Measure Linear]] allows you to make linear measurements.
* [[Image:Part_Measure_Linear.svg|32px]] [[Part_Measure_Linear|Measure Linear]]: Creates a linear measurement.
* [[Image:Part_Measure_Angular.svg|32px]] [[Part_Measure_Angular|Measure Angular]] allows you to make angular measurements.
* [[Image:Part_Measure_Refresh.svg|32px]] [[Part_Measure_Refresh|Measure Refresh]] updates the measurements on screen.
* [[Image:Part_Measure_Clear_All.svg|32px]] [[Part_Measure_Clear_All|Clear All]] Clears all measurements.
* [[Image:Part_Measure_Toggle_All.svg|32px]] [[Part_Measure_Toggle_All|Toggle All]] shows or hides all measurements.
* [[Image:Part_Measure_Toggle_3d.svg|32px]] [[Part_Measure_Toggle_3d|Toggle 3D]] shows or hides 3D measurements.
* [[Image:Part_Measure_Toggle_Delta.svg|32px]] [[Part_Measure_Toggle_Delta|Toggle Delta]] shows or hides delta measurements.


* [[Image:Part_Measure_Angular.svg|32px]] [[Part_Measure_Angular|Measure Angular]]: Creates an angular measurement.
===Other tools===


* [[Image:Part_Measure_Refresh.svg|32px]] [[Part_Measure_Refresh|Measure Refresh]]: Updates all measurements.
* [[Image:Part_Import.svg|32px]] [[Part Import|Import]]: This tool allows you to add a file *.IGES, *.STEP, *.BREP to the current document.

* [[Image:Part_Export.svg|32px]] [[Part Export|Export]]: This tool allows you to export a part object in a *.IGES, *.STEP, *.BREP file.
* [[Image:Part_Measure_Clear_All.svg|32px]] [[Part_Measure_Clear_All|Clear All]]: Clears all measurements.
* [[File:Part_BoxSelection.svg|32px]] [[Part_BoxSelection|BoxSelection]]: add to the selection the faces of the shapes that are touches by the rectangular selection. {{Version|0.19}}

* [[Image:Part_ShapeFromMesh.svg|32px]] [[Part ShapeFromMesh|Shape from Mesh]]: Creates a shape object from a mesh object.
* [[Image:Part_Measure_Toggle_All.svg|32px]] [[Part_Measure_Toggle_All|Toggle All]]: Shows or hides all measurements.
* [[File:Part_PointsFromMesh.svg|32px]] [[Part PointsFromMesh|Points from mesh]]: creates a shape object made of points from the mesh. {{Version|0.19}}

* [[Part_MakeSolid|Convert to solid]]: Converts a shape object to a solid object.
* [[File:Part_ReverseShapes.svg|32px]] [[Part_ReverseShapes|Reverse shapes]]: Flips the normals of all faces of the selected object.
* [[Image:Part_Measure_Toggle_3d.svg|32px]] [[Part_Measure_Toggle_3d|Toggle 3D]]: Shows or hides 3D measurements.

* [[Image:Part_Measure_Toggle_Delta.svg|32px]] [[Part_Measure_Toggle_Delta|Toggle Delta]]: Shows or hides delta measurements.

=== Other tools ===

* [[File:Part_Import.svg|32px]] [[Part_Import|Import]]: Imports from *.IGES, *.STEP, or *.BREP files.

* [[File:Part_Export.svg|32px]] [[Part_Export|Export]]: Exports to *.IGES, *.STEP, or *.BREP files.

* [[File:Part_BoxSelection.svg|32px]] [[Part_BoxSelection|Box selection]]: Selects faces from a rectangular area.

* [[File:Part_ShapeFromMesh.svg|32px]] [[Part_ShapeFromMesh|Shape from Mesh]]: Creates a shape object from a mesh object.

* [[File:Part_PointsFromMesh.svg|32px]] [[Part_PointsFromMesh|Points from mesh]]: Creates a shape object made of points from a mesh object. {{Version|0.19}}

* [[File:Part_MakeSolid.svg|32px]] [[Part_MakeSolid|Convert to solid]]: Converts a shape object to a solid object.

* [[File:Part_ReverseShapes.svg|32px]] [[Part_ReverseShapes|Reverse shapes]]: Flips the normals of all faces of selected objects.


* Create a copy:
* Create a copy:
** [[Image:Part_SimpleCopy‎.svg|32px]] [[Part_SimpleCopy|Create simple copy]]: Creates a simple copy of the selected object.
** [[File:Part_SimpleCopy‎.svg|32px]] [[Part_SimpleCopy|Create simple copy]]: Creates a simple copy of a selected object.
** [[File:Part_TransformedCopy.svg|32px]] [[Part_TransformedCopy|Create transformed copy]]: creates a transformed copy of the selected object. {{Version|0.19}}
** [[File:Part_TransformedCopy.svg|32px]] [[Part_TransformedCopy|Create transformed copy]]: Creates a transformed copy of a selected object. {{Version|0.19}}
** [[File:Part_ElementCopy.svg|32px]] [[Part_ElementCopy|Create shape element copy]]: creates a copy from an element (vertex, edge, face) of the selected object. {{Version|0.19}}
** [[File:Part_ElementCopy.svg|32px]] [[Part_ElementCopy|Create shape element copy]]: Creates a copy from an element (vertex, edge, face) of a selected object. {{Version|0.19}}
** [[Image:Part_RefineShape.svg|32px]] [[Part_RefineShape|Refine shape]]: Cleans faces by removing unnecessary lines.
** [[Image:Part_RefineShape.svg|32px]] [[Part_RefineShape|Refine shape]]: Cleans faces by removing unnecessary lines.


* [[Image:Part_CheckGeometry.svg|32px]] [[Part CheckGeometry|Check geometry]]: Checks the geometry of selected objects for errors.
* [[File:Part_CheckGeometry.svg|32px]] [[Part_CheckGeometry|Check geometry]]: Checks the geometry of selected objects for errors.

* [[Image:Part Defeaturing.svg|32px]] [[Part_Defeaturing|Defeaturing]]: Removes features from an object.


=== Context menu items ===
=== Context menu items ===


*[[Std_SetAppearance|Appearance]]: determines appearance of the whole part (color transparency etc.).
* [[File:Std_SetAppearance.svg|32px]] [[Std_SetAppearance|Appearance]]: Determines the appearance of a whole object (color, transparency etc.).

* [[File:Part_ColorFace.svg|32px]] [[Part_FaceColors|Set colors]]: assigns colors to part faces.
* [[File:Part_FaceColors.svg|32px]] [[Part_FaceColors|Set colors]]: Assigns colors to individual faces of objects.


== Preferences ==
== Preferences ==


<!--The PartDesign preferences are defined in the Part workbench and both the PartDesign workbench and the Part workbench use them-->
<!--The PartDesign preferences are defined in the Part workbench and both the PartDesign workbench and the Part workbench use them-->
* [[Image:Preferences-part_design.svg|32px]] [[PartDesign_Preferences|Preferences]]: preferences available for Part Tools (the Part workbench also uses the PartDesign Preferences).
* [[Image:Preferences-part_design.svg|32px]] [[PartDesign_Preferences|Preferences]]: Preferences available for Part Tools (the Part workbench also uses the PartDesign Preferences).
* [[Image:Preferences-import-export.svg|32px]] [[Import_Export_Preferences|Import Export Preferences]]: preferences available for importing from and exporting to different file formats.
* [[Image:Preferences-import-export.svg|32px]] [[Import_Export_Preferences|Import Export Preferences]]: Preferences available for importing from and exporting to different file formats.
* [[Fine-tuning]]: some extra parameters to fine-tune Part behavior.
* [[Fine-tuning]]: Some extra parameters to fine-tune Part behavior.


== Scripting ==
== Scripting ==
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{{docnav/zh-tw|[[OpenSCAD Module/zh-tw|OpenSCAD Module]]|[[Drawing Module/zh-tw|Drawing Module]]}}
{{docnav/zh-tw|[[OpenSCAD Workbench/zh-tw|OpenSCAD Workbench]]|[[Drawing Workbench/zh-tw|Drawing Workbench]]}}
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Revision as of 08:55, 12 May 2022

Part workbench icon

Introduction

FreeCAD 的電腦輔助設計功能建構於 OpenCasCade 核心。物件坊讓 FreeCAD 取用 OpenCasCade 物件與功能。OpenCasCade 是一專業級電腦輔助設計核心,善於空間幾何控制與物件。不同於 網狀模組 物件,物體物件更加複雜,因此容許更多進階操作,例如一致布林操作、修改歷史和參數行為。

A more detailed discussion of Part workbench versus Part Design workbench can be found here: Part and Part Design.

The objects created with the Part Workbench are relatively simple; they are intended to be used with boolean operations (unions and cuts) in order to build more complex shapes. This modeling paradigm is known as the constructive solid geometry (CSG) workflow, and it was the traditional methodology used in early CAD systems. On the other hand, the PartDesign Workbench provides a more modern workflow to constructing shapes: it uses a parametrically defined sketch, that is extruded to form a basic solid body, which is then modified by parametric transformations (feature editing), until the final object is obtained.

Part objects are more complex than mesh objects created with the Mesh Workbench, as they permit more advanced operations like coherent boolean operations, modifications history, and parametric behaviour.

The Part Workbench is the basic layer that exposes the OCCT drawing functions to all workbenches in FreeCAD.

工具

所有零件坊工具皆置於物件選單,載入物件坊時顯示。

Primitives

These are tools for creating primitive objects.

  • Box: Creates a box.
  • Cone: Creates a cone.
  • Create primitives...: A tool to create one of the following primitives:
    • Plane: Creates a plane.
    • Box: Creates a box. This object can also be created with the Box tool.
    • Cylinder: Creates a cylinder. This object can also be created with the Cylinder tool.
    • Cone: Creates a cone. This object can also be created with the Cone tool.
    • Sphere: Creates a sphere. This object can also be created with the Sphere tool.
    • Ellipsoid: Creates a ellipsoid.
    • Torus: Creates a torus. This object can also be created with the Torus tool.
    • Prism: Creates a prism.
    • Wedge: Creates a wedge.
    • Helix: Creates a helix.
    • Spiral: Creates a spiral.
    • Circle: Creates a circular arc.
    • Ellipse: Creates an elliptical arc.
    • Point: Creates a point.
    • Line: Creates a line.
    • Regular polygon: Creates a regular polygon.

Creation and modification

These are tools for creating new and modifying existing objects.

  • Revolve: Creates a solid by revolving an object (not a solid) around an axis.
  • Mirror: Mirrors the selected object across a mirror plane.
  • Fillet: Fillets (rounds) edges of an object.
  • Chamfer: Chamfers edges of an object.
  • Loft: Lofts from one profile to another.
  • Sweep: Sweeps one or more profiles along a path.
  • Section: Creates a section by intersecting an object with a section plane.
  • Offset tools:
    • 3D Offset: Constructs a parallel shape at a certain distance from an original.
    • 2D Offset: Constructs a parallel wire at certain distance from an original, or enlarges/shrinks a planar face.
  • Attachment: Attaches an object to another object.

Boolean

These tools perform boolean operations.

  • Boolean: Performs boolean operations on objects.
  • Cut: Cuts (subtracts) one object from another.
  • Fuse: Fuses (unions) two objects.
  • Common: Extracts the common (intersection) part of two objects.
  • Join features:
    • Connect: Connects interiors of walled objects.
    • Embed: Embeds a walled object into another walled object.
    • Cutout: Creates a cutout in a wall of an object for another walled object.
  • Splitting tools:
    • Boolean fragments: Creates all pieces obtained from Boolean operations.
    • Slice apart: Slices and splits an object by intersecting it with other objects.
    • Slice: Slices an object by intersecting it with other objects.
    • XOR: Removes space shared by an even number of objects.

Measure

File:Part Measure Menu.png Measure: Tools for linear and angular measurements.

Other tools

  • Import: Imports from *.IGES, *.STEP, or *.BREP files.
  • Export: Exports to *.IGES, *.STEP, or *.BREP files.

Context menu items

  • Appearance: Determines the appearance of a whole object (color, transparency etc.).
  • Set colors: Assigns colors to individual faces of objects.

Preferences

  • Preferences: Preferences available for Part Tools (the Part workbench also uses the PartDesign Preferences).
  • Import Export Preferences: Preferences available for importing from and exporting to different file formats.
  • Fine-tuning: Some extra parameters to fine-tune Part behavior.

Scripting

See Part scripting.

Tutorials