Part Hélice

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Part Hélice

Emplacement du menu
Pièce → Créer des primitives... → Hélice
Ateliers
Part, OpenSCAD
Raccourci par défaut
Aucun
Introduit dans la version
-
Voir aussi
Part Primitives

Description

La primitive géométrique Part Hélice crée une forme d'hélice définie par un rayon, un pas et une hauteur totale.

Utilisation

See Part Primitives.

Example

Part Helix from the scripting example

A Part Helix object created with the scripting example below is shown here.

Options

Un usage courant de la primitive hélice est pour la Création de vis en conjonction avec un profil fermé et le Part Balayage opération. Ce processus fonctionne essentiellement de la même manière dans l'Atelier PartDesign en utilisant l'outil PartDesign Balayage additif.

Properties

See also: Property editor.

A Part Helix object is derived from a Part Feature object and inherits all its properties. It also has the following additional properties:

Data

Attachment

The object has the same attachment properties as a Part Part2DObject.

Coordinate System

  • DonnéesLocal Coord (Enumeration): The handedness, or direction, of the helix: Right-handed or Left-handed. The default is Right-handed, meaning the helix turns counterclockwise as it goes up.

Helix

  • DonnéesPitch (Length): The distance between two consecutive turns of the helix measured along its Z axis. The default is 1mm.
  • DonnéesHeight (Length): The height of the helix. The default is 2mm.
  • DonnéesRadius (Length): The start radius of the helix. The helix has a constant radius if DonnéesAngle is .
  • DonnéesSegment Length (QuantityConstraint): The number of turns per helix subdivision. The default is 1, meaning each full turn of the helix is a separate segment. Use 0 to suppress subdivision.
  • DonnéesAngle (Angle): The angle that defines of the outer shape of the helix. Valid range: -90° < value < 90°. The default is . If it is the helix is cylindrical, else it is conical.

Scripting

See also: Autogenerated API documentation, Part scripting and FreeCAD Scripting Basics.

A Part Helix can be created with the addObject() method of the document:

helix = FreeCAD.ActiveDocument.addObject("Part::Helix", "myHelix")
  • Where "myHelix" is the name for the object.
  • The function returns the newly created object.

Example:

import FreeCAD as App

doc = App.activeDocument()

helix = doc.addObject("Part::Helix", "myHelix")
helix.Pitch = 2
helix.Height = 3
helix.Radius = 4
helix.SegmentLength = 21
helix.Angle = 45
helix.Placement = App.Placement(App.Vector(1, 2, 3), App.Rotation(75, 60, 30))

doc.recompute()