Difference between revisions of "PartDesign Workbench/id"

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What is a '''single contiguous solid'''? This is an item like a casting or something machined from a single block of metal. If the item involves nails, screws, glue or welding, it is not a '''single contiguous solid'''.   As a practical example, PartDesign would not be used to model a wooden chair, but would be used to model the subcomponents (legs, slats, seat, etc).  The subcomponents are combined using the  [[Assembly Workbench|Assembly]], [[Part Workbench|Part]] or [[Draft Workbench|Draft]] workbench.
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[[File:Revolve3_cropped.png]]
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[[File:PartDesign Example.png|none|400px]]
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== Basic Concepts ==
 +
 
 +
=== Feature Editing Methodology ===
 +
 
 +
While the [[Part Workbench]] and other FreeCAD workbenches construct models by combining shapes together, the PartDesign workbench uses '''features'''. A [https://en.wikipedia.org/wiki/Feature_recognition feature] is an operation that modifies the shape of a model.
 +
 
 +
The first feature is commonly called the '''base feature'''. As more features are added to the model, each feature takes the shape of the previous one and adds or removes matter, creating lineal dependencies from one feature to the next. In effect, this methodology mimics a common manufacturing process: a block is cut on one side, then on another side, holes are added, then rounds, etc.
 +
 
 +
All features are listed sequentially in the Model tree and can be edited at any time, with the last feature at the bottom representing the final part.
 +
 
 +
Features can be sorted into different categories:
 +
 
 +
* '''Profile-based''': these features start from a profile to define the shape of the matter to be added or removed. The profile can be a sketch, a planar face on existing geometry (a profile will be extracted from its edges), or a Draft object that has been included in the active Body.
 +
 
 +
* '''Additive''': adds matter to the existing model. Additive features show yellow icons.
 +
 
 +
* '''Subtractive''': removes matter from the existing model. Subtractive features show red and blue icons.
 +
 
 +
* '''Primitive-based''': based on geometric primitives (cube, cylinder, cone, torus…). They can be additive or subtractive.
 +
 
 +
* '''Transformation features''': they apply a transformation to existing features (mirrored, linear pattern, polar pattern, multitransform).
 +
 
 +
* '''Dress-up''': features that apply a treatment to edges or faces, such as fillets/rounds, chamfers and drafts.
 +
 
 +
* '''Procedural''': can be said of features that are not based on sketches, like the transformation and dress-up features.
 +
 
 +
=== Body ===
 +
 
 +
The Body is a container that groups a sequence of features forming a single contiguous solid.
 +
 
 +
What is a single contiguous solid? It is an object like a casting or something machined from a single block of metal. If the object involves nails, screws, glue or welding, it is not a single contiguous solid. As a practical example, a wooden chair would be made of multiple bodies, with one for each of its sub-components (legs, slats, seat, etc).
  
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{{docnav/id|Workbenches/id|Mesh Workbench/id}}
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[[Category:User Documentation/id]]
 
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== Basic Workflow ==
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==== Body Visibility Management ====
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 +
A body will present by default its most recent feature to the outside. This feature is defined by default as the tip. A good analogy is the expression ''the tip of the iceberg'': only the tip is visible above the water, most of the iceberg's mass (the other features) is hidden. As a new feature is added to the body, visibility of the previous feature is turned off, and the new feature becomes the tip.
 +
 
 +
There can only be one feature visible at a time. It is possible to toggle the visibility of any feature in the body, by selecting it in the Model tree and pressing the spacebar, in effect going back in the history of the body.
 +
 
 +
==== Body Origin ====
 +
 
 +
The body has an Origin which consists of reference planes (XY, XZ, YZ) and axes (X, Y, Z) that can be used by sketches and features. Sketches can be attached to Origin planes, and they no longer need to be mapped to planar faces for features based on them to be added or subtracted from the model.
 +
 
 +
==== Moving and Reordering Objects ====
 +
 
 +
It is possible to temporarily redefine the tip to a feature in the middle of the Body tree to insert new objects (features, sketches or datum geometry). It is also possible to reorder objects under a Body, or to move them to a different Body. Select the object and right-click to get a contextual menu that will offer both options. The operation may be prevented if the object has dependencies in the source Body, such as being attached to a face. To move a sketch to another Body, it should not contain links to external geometry.
 +
 
 +
=== Datum Geometry ===
 +
 
 +
Datum geometry consists of custom planes, lines, points or externally linked shapes. They can be created for use as reference by sketches and features. There is a multitude of attachment possibilities for datums.
 +
 
 +
=== Cross-referencing ===
 +
 
 +
It is possible to cross-reference elements from a body in another body via datums. For example the datum shape binder allows to copy over faces from a body as reference in another one. This should make it easy to build a box with fitting cover in two different bodies. FreeCAD helps you to not accidentally link to other bodies and queries your intent.
  
The sketch is the building block for creating and editing solid parts. The workflow can be summarized by this: a sketch containing 2D geometry is created first, then a solid creation tool is used on the sketch. At the moment the available tools are:
+
=== Attachment ===
* [[Image:PartDesign_Pad.png|32px]]  '''Pad''' which extrudes a sketch
 
* [[Image:PartDesign_Pocket.png|32px]]  '''Pocket''' which creates a pocket on an existing solid
 
* [[Image:PartDesign_Revolution.png|32px]]  '''Revolution''' which creates a solid by revolving a sketch along an axis
 
* [[Image:PartDesign_Groove.png|32px]]  '''Groove''' which creates a groove in an existing solid
 
More tools are planned in future releases.
 
  
A very important concept in the PartDesign Workbench is the '''sketch support'''. Sketches can be created on standard planes ('''XY''', '''XZ''', '''YZ''' and planes parallel to them) or on a planar face of an existing solid. For this last case, the existing solid becomes the '''support''' of the sketch. Several tools will only work with sketches that have a support, for example, '''Pocket''' - without a support there would be nothing to remove material from!
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Object attachment is not a specific PartDesign tool, but rather a Part utility introduced in v0.17 that can be found in the Part menu. It is heavily used in the PartDesign workbench to attach sketches and reference geometry to the standard planes and axes of the Body. Very extensive ways of creating datum points, lines and planes are available. Optional attachment offset parameters make this tool very versatile.
  
After solid geometry has been created it can be modified with chamfers and fillets or transformed, e.g. mirrored or patterned.
+
More info can be found in the [[Part Attachment|Attachment]] page.
  
The PartDesign Workbench is meant to create a single, connected solid. Multiple solids will be possible with the [[Assembly Workbench|Assembly workbench]].
+
=== Advice for creating stable models ===
  
As we create a model in the Part Design Workbench, each feature takes the shape of the last one and adds or removes something, creating linear dependencies from feature to feature as the model is created. Hence a "Cut" feature is not only the cut hole itself, but the whole part with the cut. As a new feature is added to the model, FreeCAD turns off visibility of the old features.  The user usually should only have the newest item (feature) in the model tree visible, because otherwise the other phases of the model overlay each other, and holes are filled in by the earlier model features that didn't yet have those holes.
+
The idea of parametric modeling implies that you can change the values of certain parameters and subsequent steps are changed according to the new values. However, when severe changes are made, the model can break. Compared to previous FreeCAD versions breaking can be minimized when you respect the following design principles:
  
To toggle visibility of an object on or off, select it in the hierarchy tree and press the Spacebar. Usually everything but the last item in the hierarchy tree should be greyed out and therefore not visible in the 3D view.
+
* Basically, you need to stop mapping sketches to faces - entirely! Place your sketches on standard planes, or on custom datum planes.
 +
* When creating datum geometry, do not base it on the part topology, base it on standard planes/axes and/or sketches.
 +
* Use a "master sketch". That is a preferably not too complicated sketch which contains basic geometric elements of your model. These elements can be referenced when modeling subsequent features. Such a master sketch will often be the first sketch in the Body but it doesn't have to be; in fact you don't even have to use it at all for anything else but being referenced.
 +
* If you inevitably have to reference an intermediate feature, e.g. the result of a thickness operation, use the first reference possible in the list of subsequent features where the referenced geometric element occurs. From FreeCAD 0.17 on you don't have to use the latest feature. If you take an early feature as reference, all changes to intermediate steps won't break your model.
  
 
== The Tools ==
 
== The Tools ==
  
The Part Design tools are all located in the '''Part Design''' menu that appears when you load the Part Design module.  
+
The Part Design tools are all located in the '''Part Design''' menu and the PartDesign toolbar that appear when you load the Part Design workbench.
 +
 
 +
{{Structure Tools}}
 +
 
 +
=== Part Design Helper tools ===
 +
 
 +
*[[File:PartDesign Body.png|32px]] [[PartDesign Body|Create body]]: Creates a Body in the active document and makes it active.
 +
 
 +
*[[File:PartDesign_NewSketch.png|32px]] [[PartDesign_NewSketch|Create sketch]]: creates‎ a new sketch on a selected face or plane. If no face is selected while this tool is executed, the user is prompted to select a plane from the Tasks panel. The interface then switches to the [[Sketcher_Workbench|Sketcher_Workbench]] in sketch editing mode.
 +
 
 +
* [[Image:Sketcher_EditSketch.png|32px]] [[Sketcher_EditSketch|Edit sketch]]: Edit the selected Sketch.
 +
 
 +
* [[Image:Sketcher_MapSketch.png‎|32px]] [[Sketcher_MapSketch|Map sketch to face]]: Maps a sketch to a previously selected plane or a face of the active body.
 +
 
 +
=== Part Design Modeling tools ===
 +
 
 +
==== Datum tools ====
 +
 
 +
*[[File:PartDesign Point.png|32px]] [[PartDesign Point|Create a datum point]]: creates a datum point in the active body.
 +
 
 +
*[[File:PartDesign Line.png|32px]] [[PartDesign Line|Create a datum line]]: creates a datum line in the active body.
 +
 
 +
*[[File:PartDesign Plane.png|32px]] [[PartDesign Plane|Create a datum plane]]: creates a datum plane in the active body.
 +
 
 +
*[[File:PartDesign ShapeBinder.png|32px]] [[PartDesign ShapeBinder|Create a shape binder]]: creates a shape binder in the active body.
 +
 
 +
*[[File:PartDesign Clone.png|32px]] [[PartDesign Clone|Create a clone]]: creates a clone of the selected body.
 +
 
 +
====Additive tools====
 +
 
 +
These are tools for creating base features or adding material to an existing solid body.
 +
 
 +
* [[File:PartDesign_Pad.png|32px]] [[PartDesign_Pad|Pad]]: extrudes a solid from a selected sketch.
 +
 
 +
* [[File:PartDesign_Revolution.png|32px]] [[PartDesign_Revolution|Revolution]]: creates a solid by revolving a sketch around an axis. The sketch must form a closed profile.
 +
 
 +
*[[File:PartDesign AdditiveLoft.png|32px]] [[PartDesign AdditiveLoft|Additive loft]]: creates a solid by making a transition between two or more sketches.
 +
 
 +
*[[File:PartDesign AdditivePipe.png|32px]] [[PartDesign AdditivePipe|Additive pipe]]: creates a solid by sweeping one or more sketches along an open or closed path.
 +
 
 +
*[[PartDesign_CompPrimitiveAdditive|Create an additive primitive]]: adds an additive primitive to the active body.
 +
 
 +
**[[File:PartDesign AdditiveBox.png|32px]] [[PartDesign AdditiveBox|Additive box]]: creates an additive box.
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 +
**[[File:PartDesign AdditiveCone.png|32px]] [[PartDesign AdditiveCone|Additive cone]]: creates an additive cone.
 +
 
 +
**[[File:PartDesign AdditiveCylinder.png|32px]] [[PartDesign AdditiveCylinder|Additive cylinder]]: creates an additive cylinder.
 +
 
 +
**[[File:PartDesign AdditiveEllipsoid.png|32px]] [[PartDesign AdditiveEllipsoid|Additive ellipsoid]]: creates an additive ellipsoid.
 +
 
 +
**[[File:PartDesign AdditivePrism.png|32px]] [[PartDesign AdditivePrism|Additive prism]]: creates an additive prism.
 +
 
 +
**[[File:PartDesign AdditiveSphere.png|32px]] [[PartDesign AdditiveSphere|Additive sphere]]: creates an additive sphere.
 +
 
 +
**[[File:PartDesign AdditiveTorus.png|32px]] [[PartDesign AdditiveTorus|Additive torus]]: creates an additive torus.
 +
 
 +
**[[File:PartDesign AdditiveWedge.png|32px]] [[PartDesign AdditiveWedge|Additive wedge]]: creates an additive wedge.
 +
 
 +
====Subtractive tools====
 +
 
 +
These are tools for subtracting material from an existing body.
 +
 
 +
* [[File:PartDesign Pocket.png|32px]] [[PartDesign_Pocket|Pocket]]: creates a pocket from a selected sketch.
 +
 
 +
* [[File:PartDesign Hole.png|32px]] [[PartDesign_Hole|Hole]]: creates a hole feature from a selected sketch. The sketch must contain one or multiple circles.
 +
 
 +
* [[File:PartDesign Groove.png|32px]] [[PartDesign_Groove|Groove]]: creates a groove by revolving a sketch around an axis.
 +
 
 +
*[[File:PartDesign SubtractiveLoft.png|32px]] [[PartDesign SubtractiveLoft|Subtractive loft]]: creates a solid shape by making a transition between two or more sketches and subtracts it from the active body.
 +
 
 +
*[[File:PartDesign SubtractivePipe.png|32px]] [[PartDesign SubtractivePipe|Subtractive pipe]]:  creates a solid shape by sweeping one or more sketches along an open or closed path and subtracts it from the active body.
 +
 
 +
*[[PartDesign_CompPrimitiveSubtractive|Create a subtractive primitive]]: adds a subtractive primitive to the active body.
 +
 
 +
**[[File:PartDesign SubtractiveBox.png|32px]] [[PartDesign SubtractiveBox|Subtractive box]]: adds a subtractive box to the active body.
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 +
**[[File:PartDesign SubtractiveCone.png|32px]] [[PartDesign SubtractiveCone|Subtractive cone]]: adds a subtractive cone to the active body.
 +
 
 +
**[[File:PartDesign SubtractiveCylinder.png|32px]] [[PartDesign SubtractiveCylinder|Subtractive cylinder]]: adds a subtractive cylinder to the active body.
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 +
**[[File:PartDesign SubtractiveEllipsoid.png|32px]] [[PartDesign SubtractiveEllipsoid|Subtractive ellipsoid]]: adds a subtractive ellipsoid to the active body.
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 +
**[[File:PartDesign SubtractivePrism.png|32px]] [[PartDesign SubtractivePrism|Subtractive prism]]: adds a subtractive prism to the active body.
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 +
**[[File:PartDesign SubtractiveSphere.png|32px]] [[PartDesign SubtractiveSphere|Subtractive sphere]]: adds a subtractive sphere to the active body.
 +
 
 +
**[[File:PartDesign SubtractiveTorus.png|32px]] [[PartDesign SubtractiveTorus|Subtractive torus]]: adds a subtractive torus to the active body.
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 +
**[[File:PartDesign SubtractiveWedge.png|32px]] ‎[[PartDesign SubtractiveWedge|Subtractive wedge]]: adds a subtractive wedge to the active body.
 +
 
 +
====Transformation tools====
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 +
These are tools for transforming existing features. They will allow you to choose which features to transform.
 +
 
 +
* [[Image:PartDesign_Mirrored.png|32px]] [[PartDesign_Mirrored|Mirrored]]: mirrors one or more features on a plane or face.
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 +
* [[Image:PartDesign_LinearPattern.png|32px]] [[PartDesign_LinearPattern|Linear Pattern]]: creates a linear pattern based on one or more features.
 +
 
 +
* [[Image:PartDesign_PolarPattern.png|32px]] [[PartDesign_PolarPattern|Polar Pattern]]: creates a polar pattern of one or more features.
 +
 
 +
* [[Image:PartDesign_MultiTransform.png|32px]] [[PartDesign_MultiTransform|Create MultiTransform]]: creates a pattern with any combination of the other transformations.
 +
 
 +
====Dress-up tools ====
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 +
These tools apply a treatment to the selected edges or faces.
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 +
*[[File:PartDesign Fillet.png|32px]] [[PartDesign Fillet|Fillet]]: fillets (rounds) edges of the active body.
 +
 
 +
*[[File:PartDesign Chamfer.png|32px]] [[PartDesign Chamfer|Chamfer]]: chamfers edges of the active body.
 +
 
 +
*[[File:PartDesign Draft.png|32px]] [[PartDesign Draft|Draft]]: applies and angular draft to faces of the active body.
 +
 
 +
*[[File:PartDesign Thickness.png|32px]] [[PartDesign Thickness|Thickness]]: creates a thick shell from the active body and opens selected face(s).
 +
 
 +
====Boolean====
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 +
*[[File:PartDesign Boolean.png|32px]] [[PartDesign Boolean|Boolean operation]]: imports one or more Bodies or PartDesign Clones into the active body and applies a Boolean operation.
  
They include the [[Sketcher Workbench]] tools, since the Part Design module is so dependent on them.
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====Extras====
  
=== The Sketcher Tools ===
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Some additional functionality found in the Part Design menu:
  
{{Sketcher Tools}}
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*[[PartDesign Migrate|Migrate]]: migrates files created with older FreeCAD versions. If the file is pure PartDesign feature-based, migration should succeed. If the file contains mixed Part/Part Design/Draft objects, the conversion will most likely fail.
  
=== The Part Design Tools ===
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* [[Image:PartDesign_WizardShaft.png|32px]] [[PartDesign_WizardShaft|Shaft design wizard]]: Generates a shaft from a table of values and allows to analyze forces and moments. The shaft is made with a revolved sketch that can be edited.
  
{{PartDesign Tools}}
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* [[Image:PartDesign_InternalExternalGear.png|32px]] [[PartDesign_InvoluteGear|Involute gear]]: creates an involute gear profile that can be used by a Pad.
  
{{PartDesign Extras}}
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=== Contextual Menu tools ===
  
== Feature properties ==
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*[[File:PartDesign MoveTip.png|32px]] [[PartDesign MoveTip|Set tip]]: redefines the tip, which is the feature exposed outside of the Body.
  
{{PartDesign Placement}}
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*[[PartDesign MoveFeature|Move object to other body]]: moves the select sketch, datum geometry or feature to another Body.
 +
 
 +
*[[PartDesign_MoveFeatureInTree|Move object after other object]]: allows reordering of the Body tree by moving the selected sketch, datum geometry or feature after another object in the Body.
  
 
== Tutorials ==
 
== Tutorials ==
Only for a development version of FreeCAD that is not currently available as a binary or installer:
 
* [[PartDesign_Bearingholder_Tutorial_I|PartDesign Bearingholder Tutorial I]]
 
* [[PartDesign_Bearingholder_Tutorial_II|PartDesign Bearingholder Tutorial II]]
 
  
* [[PartDesign_tutorial|PartDesign tutorial]]
+
* [[PartDesign_Bearingholder_Tutorial_I|PartDesign Bearingholder Tutorial I]] (needs updating)
 +
* [[PartDesign_Bearingholder_Tutorial_II|PartDesign Bearingholder Tutorial II]] (needs updating)
 +
* [[PartDesign_tutorial|PartDesign tutorial]] (needs updating)
 +
* [[Basic_Part_Design_Tutorial|Basic Part Design Tutorial]] (needs updating)
 +
 
 +
== Links ==
 +
 
 +
* [https://forum.freecadweb.org/viewtopic.php?f=20&t=12373 What's new in PartDesign Next]
 +
* [https://forum.freecadweb.org/viewtopic.php?f=9&t=15269 Updated PartDesign workflow]
 +
* [https://forum.freecadweb.org/viewtopic.php?f=3&t=15432 FC v0.17dev: Part Design Next Usecases and Best practices]
 +
* [https://www.freecadweb.org/wiki/Sandbox:Part_Design_Next Sandbox:Part Design Next]
  
* [[Basic_Part_Design_Tutorial|Basic Part Design Tutorial]]
 
* [[Sketcher_tutorial|Sketcher tutorial]]
 
  
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{{docnav|Part Workbench|Path Workbench}}
  
{{docnav/id|Workbenches/id|Mesh Workbench/id}}
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[[Category:User Documentation]]
  
  
[[Category:User Documentation/id]]
 
 
<languages/>
 
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Revision as of 06:41, 7 March 2018

Part Design Workbench menyediakan peralatan untuk pemodelan komponen solid yang komplek dan ini berbasiskan pada Feature editing methodology. Workbench ini berhubungan erat dengan Sketcher Workbench.


Halaman wiki ini ditulus berdasarkan rilis freeCAD versi v0.13 version. Pada versi terdahulu peralatan pada Part Design belum lengkap atau bahkan belum tersedia. Untuk dapat menggunakan semua fitur Part Design, buka halaman Download dan perbaharui versi FreeCAD mu.

Revolve3 cropped.png

PartDesign Example.png

Basic Concepts

Feature Editing Methodology

While the Part Workbench and other FreeCAD workbenches construct models by combining shapes together, the PartDesign workbench uses features. A feature is an operation that modifies the shape of a model.

The first feature is commonly called the base feature. As more features are added to the model, each feature takes the shape of the previous one and adds or removes matter, creating lineal dependencies from one feature to the next. In effect, this methodology mimics a common manufacturing process: a block is cut on one side, then on another side, holes are added, then rounds, etc.

All features are listed sequentially in the Model tree and can be edited at any time, with the last feature at the bottom representing the final part.

Features can be sorted into different categories:

  • Profile-based: these features start from a profile to define the shape of the matter to be added or removed. The profile can be a sketch, a planar face on existing geometry (a profile will be extracted from its edges), or a Draft object that has been included in the active Body.
  • Additive: adds matter to the existing model. Additive features show yellow icons.
  • Subtractive: removes matter from the existing model. Subtractive features show red and blue icons.
  • Primitive-based: based on geometric primitives (cube, cylinder, cone, torus…). They can be additive or subtractive.
  • Transformation features: they apply a transformation to existing features (mirrored, linear pattern, polar pattern, multitransform).
  • Dress-up: features that apply a treatment to edges or faces, such as fillets/rounds, chamfers and drafts.
  • Procedural: can be said of features that are not based on sketches, like the transformation and dress-up features.

Body

The Body is a container that groups a sequence of features forming a single contiguous solid.

What is a single contiguous solid? It is an object like a casting or something machined from a single block of metal. If the object involves nails, screws, glue or welding, it is not a single contiguous solid. As a practical example, a wooden chair would be made of multiple bodies, with one for each of its sub-components (legs, slats, seat, etc).

Body Visibility Management

A body will present by default its most recent feature to the outside. This feature is defined by default as the tip. A good analogy is the expression the tip of the iceberg: only the tip is visible above the water, most of the iceberg's mass (the other features) is hidden. As a new feature is added to the body, visibility of the previous feature is turned off, and the new feature becomes the tip.

There can only be one feature visible at a time. It is possible to toggle the visibility of any feature in the body, by selecting it in the Model tree and pressing the spacebar, in effect going back in the history of the body.

Body Origin

The body has an Origin which consists of reference planes (XY, XZ, YZ) and axes (X, Y, Z) that can be used by sketches and features. Sketches can be attached to Origin planes, and they no longer need to be mapped to planar faces for features based on them to be added or subtracted from the model.

Moving and Reordering Objects

It is possible to temporarily redefine the tip to a feature in the middle of the Body tree to insert new objects (features, sketches or datum geometry). It is also possible to reorder objects under a Body, or to move them to a different Body. Select the object and right-click to get a contextual menu that will offer both options. The operation may be prevented if the object has dependencies in the source Body, such as being attached to a face. To move a sketch to another Body, it should not contain links to external geometry.

Datum Geometry

Datum geometry consists of custom planes, lines, points or externally linked shapes. They can be created for use as reference by sketches and features. There is a multitude of attachment possibilities for datums.

Cross-referencing

It is possible to cross-reference elements from a body in another body via datums. For example the datum shape binder allows to copy over faces from a body as reference in another one. This should make it easy to build a box with fitting cover in two different bodies. FreeCAD helps you to not accidentally link to other bodies and queries your intent.

Attachment

Object attachment is not a specific PartDesign tool, but rather a Part utility introduced in v0.17 that can be found in the Part menu. It is heavily used in the PartDesign workbench to attach sketches and reference geometry to the standard planes and axes of the Body. Very extensive ways of creating datum points, lines and planes are available. Optional attachment offset parameters make this tool very versatile.

More info can be found in the Attachment page.

Advice for creating stable models

The idea of parametric modeling implies that you can change the values of certain parameters and subsequent steps are changed according to the new values. However, when severe changes are made, the model can break. Compared to previous FreeCAD versions breaking can be minimized when you respect the following design principles:

  • Basically, you need to stop mapping sketches to faces - entirely! Place your sketches on standard planes, or on custom datum planes.
  • When creating datum geometry, do not base it on the part topology, base it on standard planes/axes and/or sketches.
  • Use a "master sketch". That is a preferably not too complicated sketch which contains basic geometric elements of your model. These elements can be referenced when modeling subsequent features. Such a master sketch will often be the first sketch in the Body but it doesn't have to be; in fact you don't even have to use it at all for anything else but being referenced.
  • If you inevitably have to reference an intermediate feature, e.g. the result of a thickness operation, use the first reference possible in the list of subsequent features where the referenced geometric element occurs. From FreeCAD 0.17 on you don't have to use the latest feature. If you take an early feature as reference, all changes to intermediate steps won't break your model.

The Tools

The Part Design tools are all located in the Part Design menu and the PartDesign toolbar that appear when you load the Part Design workbench.

<translate>

Structure tools

These are tools to organize the Model tree.

  • Std Part.png Part: adds a new Part container in the active document and makes it active.
  • Group.svg Group: adds a Group in the active document's Model tree.

</translate>

Part Design Helper tools

  • PartDesign Body.png Create body: Creates a Body in the active document and makes it active.
  • PartDesign NewSketch.png Create sketch: creates‎ a new sketch on a selected face or plane. If no face is selected while this tool is executed, the user is prompted to select a plane from the Tasks panel. The interface then switches to the Sketcher_Workbench in sketch editing mode.
  • Sketcher MapSketch.png Map sketch to face: Maps a sketch to a previously selected plane or a face of the active body.

Part Design Modeling tools

Datum tools

Additive tools

These are tools for creating base features or adding material to an existing solid body.

  • PartDesign Pad.png Pad: extrudes a solid from a selected sketch.
  • PartDesign Revolution.png Revolution: creates a solid by revolving a sketch around an axis. The sketch must form a closed profile.
  • PartDesign AdditiveLoft.png Additive loft: creates a solid by making a transition between two or more sketches.
  • PartDesign AdditivePipe.png Additive pipe: creates a solid by sweeping one or more sketches along an open or closed path.

Subtractive tools

These are tools for subtracting material from an existing body.

  • PartDesign Pocket.png Pocket: creates a pocket from a selected sketch.
  • PartDesign Hole.png Hole: creates a hole feature from a selected sketch. The sketch must contain one or multiple circles.
  • PartDesign Groove.png Groove: creates a groove by revolving a sketch around an axis.
  • PartDesign SubtractiveLoft.png Subtractive loft: creates a solid shape by making a transition between two or more sketches and subtracts it from the active body.
  • PartDesign SubtractivePipe.png Subtractive pipe: creates a solid shape by sweeping one or more sketches along an open or closed path and subtracts it from the active body.

Transformation tools

These are tools for transforming existing features. They will allow you to choose which features to transform.

  • PartDesign Mirrored.png Mirrored: mirrors one or more features on a plane or face.
  • PartDesign LinearPattern.png Linear Pattern: creates a linear pattern based on one or more features.

Dress-up tools

These tools apply a treatment to the selected edges or faces.

  • PartDesign Fillet.png Fillet: fillets (rounds) edges of the active body.
  • PartDesign Chamfer.png Chamfer: chamfers edges of the active body.
  • PartDesign Draft.png Draft: applies and angular draft to faces of the active body.
  • PartDesign Thickness.png Thickness: creates a thick shell from the active body and opens selected face(s).

Boolean

  • PartDesign Boolean.png Boolean operation: imports one or more Bodies or PartDesign Clones into the active body and applies a Boolean operation.

Extras

Some additional functionality found in the Part Design menu:

  • Migrate: migrates files created with older FreeCAD versions. If the file is pure PartDesign feature-based, migration should succeed. If the file contains mixed Part/Part Design/Draft objects, the conversion will most likely fail.
  • PartDesign WizardShaft.png Shaft design wizard: Generates a shaft from a table of values and allows to analyze forces and moments. The shaft is made with a revolved sketch that can be edited.
  • PartDesign InternalExternalGear.png Involute gear: creates an involute gear profile that can be used by a Pad.

Contextual Menu tools

  • PartDesign MoveTip.png Set tip: redefines the tip, which is the feature exposed outside of the Body.
  • Move object after other object: allows reordering of the Body tree by moving the selected sketch, datum geometry or feature after another object in the Body.

Tutorials

Links



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