Part Fuse/en: Difference between revisions

From FreeCAD Documentation
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(Updating to match new version of source page)
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== Description ==
== Description ==


The {{Button|[[Image:Part Fuse.svg|24px]] [[Part Union|Part Union]]}} tool unites (fuses) selected Part objects into one. This operation is fully parametric and the components can be modified and the result recomputed.
The {{Button|[[Image:Part Fuse.svg|24px|link=Part_Union]] [[Part Union|Part Union]]}} tool unites (fuses) selected Part objects into one. This operation is fully parametric and the components can be modified and the result recomputed.


'''Note:''' This command is an automated form of the [[Image:Part_Booleans.svg|24px]] [[Part Booleans|Boolean operation]].
'''Note:''' This command is an automated form of the [[Image:Part_Booleans.svg|24px|link=Part_Booleans]] [[Part Booleans|Boolean operation]].


== Usage ==
== Usage ==
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# Select two or more shapes
# Select two or more shapes
# Invoke the Part Union command several ways:
# Invoke the Part Union command several ways:
#* Press the {{Button|[[Image:Part_Fuse.svg|16px]] Part Union}} button in the Part toolbar
#* Press the {{Button|[[Image:Part_Fuse.svg|16px|link=Part_Union]] Part Union}} button in the Part toolbar
#* Use the {{MenuCommand|Part → Boolean → Union}} entry in the Part menu
#* Use the {{MenuCommand|Part → Boolean → Union}} entry in the Part menu


== Supported inputs ==
== Supported inputs ==


Input objects must be OpenCascade shapes. Examples: stuff made with Part, PartDesign, Sketcher workbenches. Not meshes (unless those were converted to shapes) - for meshes, there are specific Boolean tools in MeshDesign workbench.
Input objects must be [[OpenCascade]] shapes. Examples: stuff made with Part, PartDesign, Sketcher workbenches. Not meshes (unless those were converted to shapes) - for meshes, there are specific Boolean tools in MeshDesign workbench.


* Solid + Solid: the result is a solid that occupies all the volume covered by the inputs
* Solid + Solid: the result is a solid that occupies all the volume covered by the inputs
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Items can be added and removed from the fusion, by dragging them in or out of the fusion feature in the tree view with the mouse. A manual recompute (press {{KEY|F5}} key or click on the [[Image:Std_Refresh.svg|24px]] [[Std_Refresh|Refresh/Recompute]] icon) is required to see the results.
Items can be added and removed from the fusion, by dragging them in or out of the fusion feature in the tree view with the mouse. A manual recompute (press {{KEY|F5}} key or click on the [[Image:Std_Refresh.svg|24px]] [[Std_Refresh|Refresh/Recompute]] icon) is required to see the results.


After this operation is complete, it may be necessary to clean up the shape with [[Image:Part_RefineShape.svg|24px]] [[Part_RefineShape|RefineShape]].
After this operation is complete, it may be necessary to clean up the shape with [[Image:Part_RefineShape.svg|24px|link=Part_RefineShape]] [[Part_RefineShape|RefineShape]].


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Revision as of 21:42, 25 February 2020

Part Union

Menu location
Part → Boolean → Union
Workbenches
Part
Default shortcut
None
Introduced in version
-
See also
Part Cut, Part Common, Part Booleans

Description

The Part Union tool unites (fuses) selected Part objects into one. This operation is fully parametric and the components can be modified and the result recomputed.

Note: This command is an automated form of the Boolean operation.

Usage

  1. Select two or more shapes
  2. Invoke the Part Union command several ways:
    • Press the Part Union button in the Part toolbar
    • Use the Part → Boolean → Union entry in the Part menu

Supported inputs

Input objects must be OpenCascade shapes. Examples: stuff made with Part, PartDesign, Sketcher workbenches. Not meshes (unless those were converted to shapes) - for meshes, there are specific Boolean tools in MeshDesign workbench.

  • Solid + Solid: the result is a solid that occupies all the volume covered by the inputs
  • Shell + Shell, Shell + Face, Face + Face: the result is a shell. Where faces intersect, they are split. Shells can be non-manifold. After fusion, faces can be united by Refining the result.
  • Wire + Wire, Edge + Wire, Edge + Edge: the result is a wire. Edges are split where they intersect.

Compounds are supported; however, it is assumed that shapes packed into a compound do not touch or intersect. If they actually do, Fusion will likely fail, or produce an incorrect result.

Options

Items can be added and removed from the fusion, by dragging them in or out of the fusion feature in the tree view with the mouse. A manual recompute (press F5 key or click on the Refresh/Recompute icon) is required to see the results.

After this operation is complete, it may be necessary to clean up the shape with RefineShape.