Part Module: Difference between revisions
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{{Docnav |
{{Docnav |
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|[[ |
|[[OpenSCAD_Module|OpenSCAD Module]] |
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|[[ |
|[[PartDesign_Workbench|PartDesign Workbench]] |
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|IconL=Workbench_OpenSCAD.svg |
|IconL=Workbench_OpenSCAD.svg |
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|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]] |
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{{TOCright}} |
{{TOCright}} |
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== Introduction == <!--T:1--> |
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== Introduction == <!--T:83--> |
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The solid modelling capabilities of FreeCAD are based on the [[OpenCASCADE|OpenCASCADE Technology]] (OCCT) kernel, a professional-grade CAD system that features advanced 3D geometry creation and manipulation. The [[Image:Workbench_Part.svg|24px]] [[Part Workbench|Part Workbench]] is a layer sitting on top of the OCCT libraries, that gives the user access to OCCT geometric primitives and functions. Essentially all 2D and 3D drawing functions in every workbench ([[Image:Workbench_Draft.svg|24px]] [[Draft Workbench|Draft]], [[Image:Workbench_Sketcher.svg|24px]] [[Sketcher Workbench|Sketcher]], [[Image:Workbench_PartDesign.svg|24px]] [[PartDesign Workbench|PartDesign]], etc.), are based on these functions exposed by the Part Workbench. Therefore, the Part Workbench is considered the core component of the modelling capabilities of FreeCAD. |
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The solid modelling capabilities of FreeCAD are based on the [[OpenCASCADE|OpenCASCADE Technology]] (OCCT) kernel, a professional-grade CAD system that features advanced 3D geometry creation and manipulation. The [[Image:Workbench_Part.svg|24px]] [[Part_Workbench|Part Workbench]] is a layer sitting on top of the OCCT libraries, that gives the user access to OCCT geometric primitives and functions. Essentially all 2D and 3D drawing functions in every workbench ([[Image:Workbench_Draft.svg|24px]] [[Draft_Workbench|Draft]], [[Image:Workbench_Sketcher.svg|24px]] [[Sketcher_Workbench|Sketcher]], [[Image:Workbench_PartDesign.svg|24px]] [[PartDesign_Workbench|PartDesign]], etc.), are based on these functions exposed by the Part Workbench. Therefore, the Part Workbench is considered the core component of the modelling capabilities of FreeCAD. |
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A more detailed discussion of Part workbench versus Part Design workbench can be found here: [[Part_and_Part_Design| Part and Part Design]]. |
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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 [[ |
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. |
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Part objects are more complex than mesh objects created with the [[ |
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. |
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The tools are |
The tools are located in the {{MenuCommand|Part}} menu or the {{MenuCommand|Measure}} menu. |
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===Primitives=== <!--T:6--> |
=== Primitives === <!--T:6--> |
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* [[Image:Part_Box.svg|32px]] [[Part_Box|Box]]: |
* [[Image:Part_Box.svg|32px]] [[Part_Box|Box]]: Creates a box. |
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* [[Image:Part_Cylinder.svg|32px]] [[Part_Cylinder|Cylinder]]: Draws a cylinder by specifying its dimensions |
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* [[Image:Part_Sphere.svg|32px]] [[Part_Sphere|Sphere]]: Draws a sphere by specifying its dimensions |
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* [[Image:Part_Cone.svg|32px]] [[Part_Cone|Cone]]: Draws a cone by specifying its dimensions |
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* [[Image:Part_Torus.svg|32px]] [[Part_Torus|Torus]]: Draws a torus (ring) by specifying its dimensions |
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* [[File:Part_Tube.svg|32px]] [[Part_Tube|Tube]]: draws a tube by specifying its internal radius and external radius. {{Version|0.19}} |
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* [[Image:Part_Primitives.svg|32px]] [[Part_Primitives|Primitives]]: A tool to add any of the defined geometric primitives. |
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* [[Image:Part_Shapebuilder.svg|32px]] [[Part_Builder|Shapebuilder]]: A tool to create more complex shapes from various parametric geometric primitives |
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* [[Image:Part_Cylinder.svg|32px]] [[Part_Cylinder|Cylinder]]: Creates a cylinder. |
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* [[Image:Part_Sphere.svg|32px]] [[Part_Sphere|Sphere]]: Creates a sphere. |
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* [[Image:Part_Cone.svg|32px]] [[Part_Cone|Cone]]: Creates a cone. |
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* [[Image:Part_Torus.svg|32px]] [[Part_Torus|Torus]]: Creates a torus (ring). |
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* [[File:Part_Tube.svg|32px]] [[Part_Tube|Tube]]: Creates a tube. {{Version|0.19}} |
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* [[Image:Part_Primitives.svg|32px]] [[Part_Primitives|Primitives]]: A tool to create one of the following primitives: |
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**[[Image:Part_Plane.svg|32px]] [[Part_Plane|Plane]]: Creates a plane. |
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**[[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. |
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**[[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. |
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**[[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. |
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**[[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. |
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**[[Image:Part_Ellipsoid.svg|32px]] [[Part_Ellipsoid|Ellipsoid]]: Creates a ellipsoid. |
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**[[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. |
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**[[Image:Part_Prism.svg|32px]] [[Part_Prism|Prism]]: Creates a prism. |
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**[[Image:Part_Wedge.svg|32px]] [[Part_Wedge|Wedge]]: Creates a wedge. |
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**[[Image:Part_Helix.svg|32px]] [[Part_Helix|Helix]]: Creates a helix. |
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**[[Image:Part_Spiral.svg|32px]] [[Part_Spiral|Spiral]]: Creates a spiral. |
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**[[Image:Part_Circle.svg|32px]] [[Part_Circle|Circle]]: Creates a circular edge. |
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**[[Image:Part_Ellipse.svg|32px]] [[Part_Ellipse|Ellipse]]: Creates an elliptical edge. |
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**[[Image:Part_Point.svg|32px]] [[Part_Point|Point]]: Creates a point (vertex). |
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**[[Image:Part_Line.svg|32px]] [[Part_Line|Line]]: Creates a line (edge). |
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**[[Image:Part_RegularPolygon.svg|32px]] [[Part_RegularPolygon|Regular Polygon]]: Creates a regular polygon. |
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* [[Image:Part_Builder.svg|32px]] [[Part_Builder|Builder]]: Creates shapes from various primitives. |
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=== Modifying objects === <!--T:38--> |
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These are tools for modifying existing objects |
These are tools for modifying existing objects. |
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* [[Image:Part_Extrude.svg|32px]] [[Part_Extrude|Extrude]]: Extrudes planar faces |
* [[Image:Part_Extrude.svg|32px]] [[Part_Extrude|Extrude]]: Extrudes planar faces. |
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* [[Image:Part_Revolve.svg|32px]] [[Part_Revolve|Revolve]]: Creates a solid by revolving another object (not solid) around an axis |
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* [[Image:Part_Mirror.svg|32px]] [[Part_Mirror|Mirror]]: Mirrors the selected object on a given mirror plane |
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* [[Image: |
* [[Image:Part_Revolve.svg|32px]] [[Part_Revolve|Revolve]]: Creates a solid by revolving an object (not a solid) around an axis. |
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* [[Image:Part_Chamfer.svg|32px]] [[Part_Chamfer|Chamfer]]: Chamfers edges of an object |
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* [[Image:Part_RuledSurface.svg|32px]] [[Part_RuledSurface|Ruled Surface]]: |
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* [[Image: |
* [[Image:Part_Mirror.svg|32px]] [[Part_Mirror|Mirror]]: Mirrors the selected object across a mirror plane. |
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* [[Image:Part_Sweep.svg|32px]] [[Part_Sweep|Sweep]]: Sweeps one or more profiles along a path |
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* [[Image:Part_Fillet.svg|32px]] [[Part_Fillet|Fillet]]: Fillets (rounds) edges of an object. |
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* [[Image:Part_Chamfer.svg|32px]] [[Part_Chamfer|Chamfer]]: Chamfers edges of an object. |
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* [[Image:Part_RuledSurface.svg|32px]] [[Part_RuledSurface|Ruled Surface]]: Creates a ruled surface. |
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* [[Image:Part_Loft.svg|32px]] [[Part_Loft|Loft]]: Lofts from one profile to another. |
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* [[Image:Part_Sweep.svg|32px]] [[Part_Sweep|Sweep]]: Sweeps one or more profiles along a path. |
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* [[Image:Part_CompOffsetTools.png|48px]] [[Part_CompOffsetTools|Offset tools]]: |
* [[Image:Part_CompOffsetTools.png|48px]] [[Part_CompOffsetTools|Offset tools]]: |
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** [[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. |
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** [[Image:Part_Offset2D.svg|32px]] [[Part_Offset2D|2D Offset]]: Constructs a parallel wire at certain distance from original, or enlarges/shrinks a planar face. |
** [[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. |
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* [[Image:Part_Thickness.svg|32px]] [[Part_Thickness|Thickness]]: Hollows out a solid |
* [[Image:Part_Thickness.svg|32px]] [[Part_Thickness|Thickness]]: Hollows out a solid. |
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* [[File:Part_ProjectionOnSurface.svg|32px]] [[Part_ProjectionOnSurface|Projection on surface]]: |
* [[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}} |
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* [[Image: |
* [[Image:Part_CompCompoundTools.png|48px]] [[Part_CompCompoundTools|Compound Tools]]: |
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** [[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. |
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** [[Image:Part_ExplodeCompound.svg|32px]] [[Part_ExplodeCompound|Explode Compound]]: |
** [[Image:Part_ExplodeCompound.svg|32px]] [[Part_ExplodeCompound|Explode Compound]]: Splits up compounds. |
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** [[Image:Part CompoundFilter.svg|32px]] [[ |
** [[Image:Part CompoundFilter.svg|32px]] [[Part_CompoundFilter|Compound Filter]]: Extracts the individual pieces from compounds. |
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* [[Image: |
* [[Image:Part_Boolean.svg|32px]] [[Part_Boolean|Boolean]]: Performs boolean operations on objects. |
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* [[Image:Part_Fuse.svg|32px]] [[Part_Union|Union]]: Fuses (unions) two objects |
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* [[Image:Part_Common.svg|32px]] [[Part_Common|Common]]: Extracts the common (intersection) part of two objects |
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* [[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. |
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* [[Image:Part_Fuse.svg|32px]] [[Part_Fuse|Fuse]]: Fuses (unions) two objects. |
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* [[Image:Part_Common.svg|32px]] [[Part_Common|Common]]: Extracts the common (intersection) part of two objects. |
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* [[Image:Part_CompJoinFeatures.png|48px]] [[Part CompJoinFeatures|Join features]]: |
* [[Image:Part_CompJoinFeatures.png|48px]] [[Part CompJoinFeatures|Join features]]: |
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** [[Image:Part_JoinConnect.svg|32px]] [[Part_JoinConnect|Connect]]: Connects interiors of |
** [[Image:Part_JoinConnect.svg|32px]] [[Part_JoinConnect|Connect]]: Connects interiors of walled objects. |
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** [[Image:Part_JoinEmbed.svg|32px]] [[Part_JoinEmbed|Embed]]: Embeds a walled object into another walled object |
** [[Image:Part_JoinEmbed.svg|32px]] [[Part_JoinEmbed|Embed]]: Embeds a walled object into another walled object. |
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** [[Image:Part_JoinCutout.svg|32px]] [[Part_JoinCutout|Cutout]]: Creates a cutout in a wall of an object for another walled object |
** [[Image:Part_JoinCutout.svg|32px]] [[Part_JoinCutout|Cutout]]: Creates a cutout in a wall of an object for another walled object. |
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* [[Image:Part_CompSplittingTools.png|48px]] [[Part CompSplittingTools|Splitting tools]]: |
* [[Image:Part_CompSplittingTools.png|48px]] [[Part CompSplittingTools|Splitting tools]]: |
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** [[Image:Part_BooleanFragments.svg|32px]] [[Part_BooleanFragments|Boolean fragments]]: |
** [[Image:Part_BooleanFragments.svg|32px]] [[Part_BooleanFragments|Boolean fragments]]: Creates all pieces obtained from Boolean operations. |
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** [[Image:Part SliceApart.svg|32px]] [[Part_SliceApart|Slice a part]]: |
** [[Image:Part SliceApart.svg|32px]] [[Part_SliceApart|Slice a part]]: Slices and splits an object by intersecting it with other objects. |
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** [[Image:Part_Slice.svg|32px]] [[Part_Slice|Slice]]: |
** [[Image:Part_Slice.svg|32px]] [[Part_Slice|Slice]]: Slices an object by intersecting it with other objects. |
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** [[Image:Part_XOR.svg|32px]] [[Part_XOR|XOR]]: |
** [[Image:Part_XOR.svg|32px]] [[Part_XOR|XOR]]: Removes space shared by an even number of objects (symmetric version of [[Part_Cut|Cut]]). |
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* [[Image:Part Defeaturing.svg|32px]] [[Part_Defeaturing|Defeaturing]]: |
* [[Image:Part Defeaturing.svg|32px]] [[Part_Defeaturing|Defeaturing]]: Removes features from an object. |
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* [[Image:Part_Section.svg|32px]] [[Part_Section|Section]]: Creates a section by intersecting an object with a section plane |
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* [[Image:Part_CrossSections.svg|32px]] [[Part_SectionCross|Cross sections...]]: Creates one or more cross-sections through a selected shape |
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* [[Image: |
* [[Image:Part_Section.svg|32px]] [[Part_Section|Section]]: Creates a section by intersecting an object with a section plane. |
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* [[Image:Part_CrossSections.svg|32px]] [[Part_CrossSections|Cross sections...]]: Creates one or more cross-sections through an object. |
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* [[Image:Part Attachment.svg|32px]] [[Part_Attachment|Attachment]]: Attaches an object to another object. |
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=== Measure === <!--T:58--> |
=== Measure === <!--T:58--> |
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[[File:Part Measure Menu.png|64px]] [[Part Measure Menu|Measure]]: |
[[File:Part Measure Menu.png|64px]] [[Part Measure Menu|Measure]]: Tools for linear and angular measurements. |
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* [[Image:Part_Measure_Linear.svg|32px]] [[Part_Measure_Linear|Measure Linear]] |
* [[Image:Part_Measure_Linear.svg|32px]] [[Part_Measure_Linear|Measure Linear]]: Creates a linear measurements. |
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* [[Image:Part_Measure_Angular.svg|32px]] [[Part_Measure_Angular|Measure Angular]] allows you to make angular measurements. |
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* [[Image:Part_Measure_Refresh.svg|32px]] [[Part_Measure_Refresh|Measure Refresh]] updates the measurements on screen. |
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* [[Image: |
* [[Image:Part_Measure_Angular.svg|32px]] [[Part_Measure_Angular|Measure Angular]]: Creates an angular measurements. |
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* [[Image:Part_Measure_Toggle_All.svg|32px]] [[Part_Measure_Toggle_All|Toggle All]] shows or hides all measurements. |
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* [[Image:Part_Measure_Toggle_3d.svg|32px]] [[Part_Measure_Toggle_3d|Toggle 3D]] shows or hides 3D measurements. |
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* [[Image: |
* [[Image:Part_Measure_Refresh.svg|32px]] [[Part_Measure_Refresh|Measure Refresh]]: Updates all measurements. |
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* [[Image:Part_Measure_Clear_All.svg|32px]] [[Part_Measure_Clear_All|Clear All]]: Clears all measurements. |
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* [[Image:Part_Measure_Toggle_All.svg|32px]] [[Part_Measure_Toggle_All|Toggle All]]: Shows or hides all measurements. |
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* [[Image:Part_Measure_Toggle_3d.svg|32px]] [[Part_Measure_Toggle_3d|Toggle 3D]]: Shows or hides 3D measurements. |
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* [[Image:Part_Measure_Toggle_Delta.svg|32px]] [[Part_Measure_Toggle_Delta|Toggle Delta]]: Shows or hides delta measurements. |
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===Other tools=== <!--T:41--> |
===Other tools=== <!--T:41--> |
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* [[ |
* [[File:Part_Import.svg|32px]] [[Part_Import|Import]]: Imports from *.IGES, *.STEP, or *.BREP files. |
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* [[Image:Part_Export.svg|32px]] [[Part Export|Export]]: This tool allows you to export a part object in a *.IGES, *.STEP, *.BREP file. |
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* [[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}} |
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* [[ |
* [[File:Part_Export.svg|32px]] [[Part_Export|Export]]: Exports to *.IGES, *.STEP, or *.BREP files. |
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* [[File:Part_PointsFromMesh.svg|32px]] [[Part PointsFromMesh|Points from mesh]]: creates a shape object made of points from the mesh. {{Version|0.19}} |
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* [[Part_MakeSolid|Convert to solid]]: Converts a shape object to a solid object. |
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* [[File: |
* [[File:Part_BoxSelection.svg|32px]] [[Part_BoxSelection|BoxSelection]]: Selects faces from a rectangular area. |
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* [[File:Part_ShapeFromMesh.svg|32px]] [[Part_ShapeFromMesh|Shape from Mesh]]: Creates a shape object from a mesh object. |
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* [[File:Part_PointsFromMesh.svg|32px]] [[Part_PointsFromMesh|Points from mesh]]: Creates a shape object made of points from a mesh object. {{Version|0.19}} |
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* [[File:Part_MakeSolid.svg|32px]] [[Part_MakeSolid|Convert to solid]]: Converts a shape object to a solid object. |
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* [[File:Part_ReverseShapes.svg|32px]] [[Part_ReverseShapes|Reverse shapes]]: Flips the normals of all faces of selected objects. |
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* Create a copy: |
* Create a copy: |
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** [[ |
** [[File:Part_SimpleCopy.svg|32px]] [[Part_SimpleCopy|Create simple copy]]: Creates a simple copy of a selected object. |
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** [[File:Part_TransformedCopy.svg|32px]] [[Part_TransformedCopy|Create transformed copy]]: |
** [[File:Part_TransformedCopy.svg|32px]] [[Part_TransformedCopy|Create transformed copy]]: Creates a transformed copy of a selected object. {{Version|0.19}} |
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** [[File:Part_ElementCopy.svg|32px]] [[Part_ElementCopy|Create shape element copy]]: |
** [[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}} |
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** [[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. |
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* [[ |
* [[File:Part_CheckGeometry.svg|32px]] [[Part_CheckGeometry|Check geometry]]: Checks the geometry of selected objects for errors. |
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* [[File:Part_MakeFace.svg|32px]] [[Part_MakeFace|Make face from wires]]: Makes a face from a set of wires. {{Version|0.19}} |
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=== Context menu items === <!--T:80--> |
=== Context menu items === <!--T:80--> |
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*[[Std_SetAppearance|Appearance]]: |
* [[File:Std_SetAppearance.svg|32px]] [[Std_SetAppearance|Appearance]]: Determines the appearance of a whole object (color, transparency etc.). |
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* [[File:Part_ColorFace.svg|32px]] [[Part_FaceColors|Set colors]]: assigns colors to part faces. |
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* [[File:Part_FaceColors.svg|32px]] [[Part_FaceColors|Set colors]]: Assigns colors to individual faces of objects. |
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== Preferences == <!--T:43--> |
== Preferences == <!--T:43--> |
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<!--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--> |
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* [[Image:Preferences-part_design.svg|32px]] [[PartDesign_Preferences|Preferences]]: |
* [[Image:Preferences-part_design.svg|32px]] [[PartDesign_Preferences|Preferences]]: Preferences available for Part Tools (the Part workbench also uses the PartDesign Preferences). |
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* [[Image:Preferences-import-export.svg|32px]] [[Import_Export_Preferences|Import Export Preferences]]: |
* [[Image:Preferences-import-export.svg|32px]] [[Import_Export_Preferences|Import Export Preferences]]: Preferences available for importing from and exporting to different file formats. |
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* [[Fine-tuning]]: |
* [[Fine-tuning]]: Some extra parameters to fine-tune Part behavior. |
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== Scripting == <!--T:18--> |
== Scripting == <!--T:18--> |
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{{Docnav |
{{Docnav |
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|[[ |
|[[OpenSCAD_Module|OpenSCAD Module]] |
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|[[ |
|[[PartDesign_Workbench|PartDesign Workbench]] |
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|IconL=Workbench_OpenSCAD.svg |
|IconL=Workbench_OpenSCAD.svg |
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|IconR=Workbench_PartDesign.svg |
|IconR=Workbench_PartDesign.svg |
Revision as of 19:39, 25 February 2021
Introduction
The solid modelling capabilities of FreeCAD are based on the OpenCASCADE Technology (OCCT) kernel, a professional-grade CAD system that features advanced 3D geometry creation and manipulation. The Part Workbench is a layer sitting on top of the OCCT libraries, that gives the user access to OCCT geometric primitives and functions. Essentially all 2D and 3D drawing functions in every workbench ( Draft, Sketcher, PartDesign, etc.), are based on these functions exposed by the Part Workbench. Therefore, the Part Workbench is considered the core component of the modelling capabilities of FreeCAD.
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.
Tools
The tools are located in the Part menu or the Measure menu.
Primitives
These are tools for creating primitive objects.
- Box: Creates a box.
- Cylinder: Creates a cylinder.
- Sphere: Creates a sphere.
- Cone: Creates a cone.
- Torus: Creates a torus (ring).
- Tube: Creates a tube. introduced in version 0.19
- 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 edge.
- Ellipse: Creates an elliptical edge.
- Point: Creates a point (vertex).
- Line: Creates a line (edge).
- Regular Polygon: Creates a regular polygon.
- Builder: Creates shapes from various primitives.
Modifying objects
These are tools for modifying existing objects.
- Extrude: Extrudes planar faces.
- 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.
- Ruled Surface: Creates a ruled surface.
- Loft: Lofts from one profile to another.
- Sweep: Sweeps one or more profiles along a path.
- Thickness: Hollows out a solid.
- Projection on surface: Projects a logo, text or any face, wire or edge onto a surface. introduced in version 0.19
- Compound Tools:
- Make compound: Creates a compound from the selected objects.
- Explode Compound: Splits up compounds.
- Compound Filter: Extracts the individual pieces from compounds.
- 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.
- Splitting tools:
- Boolean fragments: Creates all pieces obtained from Boolean operations.
- Slice a part: 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 (symmetric version of Cut).
- Defeaturing: Removes features from an object.
- Section: Creates a section by intersecting an object with a section plane.
- Cross sections...: Creates one or more cross-sections through an object.
- Attachment: Attaches an object to another object.
Measure
File:Part Measure Menu.png Measure: Tools for linear and angular measurements.
- Measure Linear: Creates a linear measurements.
- Measure Angular: Creates an angular measurements.
- Measure Refresh: Updates all measurements.
- Clear All: Clears all measurements.
- Toggle All: Shows or hides all measurements.
- File:Part Measure Toggle 3d.svg Toggle 3D: Shows or hides 3D measurements.
- Toggle Delta: Shows or hides delta measurements.
Other tools
- Import: Imports from *.IGES, *.STEP, or *.BREP files.
- Export: Exports to *.IGES, *.STEP, or *.BREP files.
- BoxSelection: Selects faces from a rectangular area.
- Shape from Mesh: Creates a shape object from a mesh object.
- Points from mesh: Creates a shape object made of points from a mesh object. introduced in version 0.19
- Convert to solid: Converts a shape object to a solid object.
- File:Part ReverseShapes.svg Reverse shapes: Flips the normals of all faces of selected objects.
- Create a copy:
- Create simple copy: Creates a simple copy of a selected object.
- Create transformed copy: Creates a transformed copy of a selected object. introduced in version 0.19
- Create shape element copy: Creates a copy from an element (vertex, edge, face) of a selected object. introduced in version 0.19
- Refine shape: Cleans faces by removing unnecessary lines.
- Check geometry: Checks the geometry of selected objects for errors.
- Make face from wires: Makes a face from a set of wires. introduced in version 0.19
- 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
- Import from STL or OBJ : How to import STL/OBJ files in FreeCAD
- Export to STL or OBJ : How to export STL/OBJ files from FreeCAD
- Whiffle Ball tutorial : How to use the Part Module
- 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
- 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
- Hubs: User hub, Power users hub, Developer hub