PartDesign SubtractiveLoft: Difference between revisions

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{{GuiCommand|Name=PartDesign SubtractiveLoft|Workbenches=[[PartDesign Workbench|PartDesign]]|MenuLocation=Part Design → Subtractive loft|Shortcut=None|SeeAlso=[[PartDesign AdditiveLoft|Additive Loft]], [[PartDesign SubtractivePipe|Subtractive Pipe]]}}
{{Docnav
|[[PartDesign_Groove|Groove]]
|[[PartDesign_SubtractivePipe|Subtractive pipe]]
|[[PartDesign_Workbench|PartDesign]]
|IconL=PartDesign_Groove.svg
|IconR=PartDesign_SubtractivePipe.svg
|IconC=Workbench_PartDesign.svg
}}


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==Description==
{{GuiCommand
|Name=PartDesign SubtractiveLoft
|MenuLocation=Part Design → Create a substractive feature → Subtractive loft
|Workbenches=[[PartDesign_Workbench|PartDesign]]
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|Version=0.17
|SeeAlso=[[PartDesign_AdditiveLoft|PartDesign Additive loft]], [[PartDesign_SubtractivePipe|PartDesign Subtractive pipe]]
}}


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==Description== <!--T:2-->
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'''Subtractive Loft''' creates a subtractive solid in the active Body by making a transition between two or more sketches (also referred to as cross-sections). Its shape is subtracted from the existing solid.


<!--T:3-->
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{{Version|0.17}}
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'''Subtractive Loft''' creates a subtractive solid in the active Body by making a transition between two or more sketches (also referred to as cross-sections). Its shape is then subtracted from the existing solid.


==Usage== <!--T:5-->
==How to use==


=== Dialog-based workflow === <!--T:21-->
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# Press the {{KEY|[[Image:PartDesign SubtractiveLoft.png|24px]] '''Subtractive loft'''}} button.
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# In the '''Select feature''' dialog, select a sketch to be used as first cross-section and click {{KEY|OK}}.
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#* Alternatively, a single sketch can be selected prior to pressing the Subtractive loft button.
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# In the '''Loft parameters''', press the {{KEY|Add Section}} button.
# Select a sketch in the 3D view. Repeat to select more sketches.
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# Set options if needed and click {{KEY|OK}}.


<!--T:24-->
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==Options==
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# Press the {{Button|[[File:PartDesign_SubtractiveLoft.svg|24px]] [[PartDesign_SubtractiveLoft|Subtractive loft]]}} button.
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# In the '''Select feature''' dialog, select a sketch to be used as base profile object and click {{Button|OK}}.
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#* Alternatively, a single sketch can be selected prior to pressing the subtractive loft button.
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# In the '''Loft parameters''', press the {{Button|Add Section}} button.
# Select the next sketch in the [[3D_view|3D view]]. Repeat to select more sketches in the order you want them to be lofted through. (You can change the section order any time later in the loft dialog by dragging sections in the list to the desired position.{{Version|0.19}})
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# Set options if needed and click {{Button|OK}}.


=== Selection-based workflow === <!--T:22-->
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* '''Ruled surface''': makes straight transitions between cross-sections. Dos not apply to a loft with two cross-sections. If not checked, transitions will be smooth.

<!--T:23-->
{{Version|0.19}}
# Select several sketches. It is hereby important in what order you select them:
#* The sketch selected at first will become the base profile object in the next step
#* The sketches selected after the first one will become the loft sections. Also here the selection order is important: The sketch selected as second will become the first loft section, the one selected as third becomes the second section and so on. (You can change the section order any time later in the loft dialog by dragging sections in the list to the desired position.{{Version|0.19}})
# Press the {{Button|[[File:PartDesign_SubtractiveLoft.svg|24px]] [[PartDesign_SubtractiveLoft|Subtractive loft]]}} button.
# Set options if needed and click {{Button|OK}}.

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==Options== <!--T:7-->

<!--T:8-->
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* '''Ruled surface''': makes straight transitions between cross-sections. Does not apply to a loft with two cross-sections. If not checked, transitions will be smooth.
* '''Closed''': makes a transition from the last cross-section to the first, creating a loop.
* '''Closed''': makes a transition from the last cross-section to the first, creating a loop.
* Press the {{KEY|Remove Section}} button to remove a sketch, by selecting it in the 3D view.


==Properties==
==Properties== <!--T:9-->


<!--T:10-->
* {{PropertyData|Label}}: name given to the operation, this name can be changed at convenience.
* {{PropertyData|Label}}: name given to the operation, this name can be changed at convenience.
* {{PropertyData|Sections}}: lists the sections used.
* {{PropertyData|Sections}}: lists the sections used.
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* {{PropertyData|Midplane}}: N/A
* {{PropertyData|Midplane}}: N/A
* {{PropertyData|Reversed}}: N/A
* {{PropertyData|Reversed}}: N/A
* {{PropertyData|Refine}}: true or false. If set to true, cleans the solid from residual edges left by features. See [[Part RefineShape]] for more details.
* {{PropertyData|Refine}}: true or false. If set to true, cleans the solid from residual edges left by features. See [[Part_RefineShape|Part RefineShape]] for more details.


==Limitations==
==Limitations== <!--T:11-->


<!--T:12-->
* Sketches must form closed profiles.
* Sketches must form closed profiles.
* It is not possible to loft to a vertex.
* It is not possible to loft to a vertex.
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* To better control the shape of the loft, it is recommended that all the cross-sections have the same number of segments. For example, for a loft between a rectangle and a circle, the circle may be broken down into 4 connected arcs.
* To better control the shape of the loft, it is recommended that all the cross-sections have the same number of segments. For example, for a loft between a rectangle and a circle, the circle may be broken down into 4 connected arcs.


==Links==
==Links== <!--T:13-->


<!--T:14-->
* [[Part Loft Technical Details]] explains how a [[Part Loft]] is created, much of its content is relevant to the PartDesign Subtractive loft.
* [[Part Loft_Technical_Details|Part Loft Technical Details]] explains how a [[Part_Loft|Part Loft]] is created, much of its content is relevant to the PartDesign Subtractive loft.



<!--T:16-->
{{Docnav
|[[PartDesign_Groove|Groove]]
|[[PartDesign_SubtractivePipe|Subtractive pipe]]
|[[PartDesign_Workbench|PartDesign]]
|IconL=PartDesign_Groove.svg
|IconR=PartDesign_SubtractivePipe.svg
|IconC=Workbench_PartDesign.svg
}}


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{{PartDesign Tools navi{{#translation:}}}}
{{clear}}
{{Userdocnavi{{#translation:}}}}
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<languages/>

Revision as of 10:16, 28 May 2021

Other languages:

PartDesign SubtractiveLoft

Menu location
Part Design → Create a substractive feature → Subtractive loft
Workbenches
PartDesign
Default shortcut
None
Introduced in version
0.17
See also
PartDesign Additive loft, PartDesign Subtractive pipe

Description

Subtractive Loft creates a subtractive solid in the active Body by making a transition between two or more sketches (also referred to as cross-sections). Its shape is then subtracted from the existing solid.

Usage

Dialog-based workflow

  1. Press the Subtractive loft button.
  2. In the Select feature dialog, select a sketch to be used as base profile object and click OK.
    • Alternatively, a single sketch can be selected prior to pressing the subtractive loft button.
  3. In the Loft parameters, press the Add Section button.
  4. Select the next sketch in the 3D view. Repeat to select more sketches in the order you want them to be lofted through. (You can change the section order any time later in the loft dialog by dragging sections in the list to the desired position.introduced in version 0.19)
  5. Set options if needed and click OK.

Selection-based workflow

introduced in version 0.19

  1. Select several sketches. It is hereby important in what order you select them:
    • The sketch selected at first will become the base profile object in the next step
    • The sketches selected after the first one will become the loft sections. Also here the selection order is important: The sketch selected as second will become the first loft section, the one selected as third becomes the second section and so on. (You can change the section order any time later in the loft dialog by dragging sections in the list to the desired position.introduced in version 0.19)
  2. Press the Subtractive loft button.
  3. Set options if needed and click OK.

Options

  • Ruled surface: makes straight transitions between cross-sections. Does not apply to a loft with two cross-sections. If not checked, transitions will be smooth.
  • Closed: makes a transition from the last cross-section to the first, creating a loop.

Properties

  • DataLabel: name given to the operation, this name can be changed at convenience.
  • DataSections: lists the sections used.
  • DataRuled: see Options.
  • DataClosed: see Options.
  • DataMidplane: N/A
  • DataReversed: N/A
  • DataRefine: true or false. If set to true, cleans the solid from residual edges left by features. See Part RefineShape for more details.

Limitations

  • Sketches must form closed profiles.
  • It is not possible to loft to a vertex.
  • A cross-section cannot lie on the same plane as the one immediately preceding it.
  • To better control the shape of the loft, it is recommended that all the cross-sections have the same number of segments. For example, for a loft between a rectangle and a circle, the circle may be broken down into 4 connected arcs.

Links


PartDesign
User documentation
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