PartDesign AdditiveLoft: Difference between revisions

From FreeCAD Documentation
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|MenuLocation=Part Design → Additive loft
|MenuLocation=Part Design → Additive loft
|Version=0.17
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|SeeAlso=[[PartDesign AdditivePipe]]
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* {{PropertyData|Midplane}}: non applicable.
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* {{PropertyData|Reversed}}: non applicable.
* {{PropertyData|Reversed}}: non applicable.
* {{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.


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* [[Part Loft Technical Details]] explains how a [[Part Loft]] is created, much of its content is relevant to the PartDesign Additive 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 Additive loft.




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Revision as of 12:37, 12 December 2019

Other languages:

PartDesign AdditiveLoft

Menu location
Part Design → Additive loft
Workbenches
PartDesign
Default shortcut
None
Introduced in version
0.17
See also
PartDesign AdditivePipe

Description

Additive Loft creates a solid in the active Body by making a transition between two or more sketches (also referred to as cross-sections). If the Body already contains features, the additive loft will be merged to them.

On the left: cross-sections (A), (B) and (C); created Additive loft on the right.

How to use

  1. Press the Additive loft button.
  2. In the Select feature dialog, select a sketch to be used as first cross-section and click OK.
    • Alternatively, a single sketch can be selected prior to pressing the Additive 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.
  5. Set options if needed and click OK.

Options

  • 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.
  • Closed: makes a transition from the last cross-section to the first, creating a loop.
  • Press the Remove Section button to remove a sketch, by selecting it in the 3D view.

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: non applicable.
  • DataReversed: non applicable.
  • 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.
  • Loft will be created in the order that cross sections were added

Known Issues

  • Some failure modes will turn the part black

Links


PartDesign
User documentation
Retrieved from "http://wiki.freecad.org/index.php?title=PartDesign_AdditiveLoft&oldid=561175"