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Part Cylinder/sv

Description

The Part Cylinder command creates a parametric cylinder solid. It is the result of extruding a circular arc along a straight path. In the coordinate system defined by its Placement property, the bottom face of the cylinder lies on the XY plane with its center at the origin.

A Part Cylinder can be turned into a segment of a cylinder by changing its Angle property.

Usage

  1. There are several ways to invoke the command:
    • Press the Part Cylinder button.
    • Select the Part → Primitives → Cylinder option from the menu.
  2. The cylinder is created.
  3. Optionally change the dimensions and Placement of the cylinder by doing one of the following:
    • Double-click the object in the Tree view:
      1. The Geometric Primitives task panel opens.
      2. Change one or more properties.
      3. The object is dynamically updated in the 3D view.
      4. Press the OK button.
    • Change the properties in the Property editor.
    • Change the Placement with the Std TransformManip command.

Example

Part Cylinder from the scripting example

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

Notes

  • A Part Cylinder can also be created with the Part Primitives command. With that command you can specify the dimensions and placement at creation time.

Properties

See also: Property editor.

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

Data

{{TitleProperty|Attachment}}

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

{{TitleProperty|Cylinder}}

  • Radius|Length: The radius of the circular arc that defines the cylinder. The default is {{Value|2mm}}.

  • Height|Length: The height of the cylinder. The default is {{Value|10mm}}.

  • Angle|Angle: The angle of the circular arc that defines the cylinder. Valid range: {{Value|0° < value <= 360°}}. The default is {{Value|360°}}. If it is smaller than {{Value|360°}} the resulting solid will be a segment of a cylinder.

{{TitleProperty|Prism}}

  • First Angle|Angle: The angle between the extrusion direction of the cylinder and its positive Z axis, measured around its Y axis. The angle is positive towards its positive X axis. Valid range: {{Value|0° <= value < 90°}}. The default is {{Value|0°}}. (v0.20)

  • Second Angle|Angle: The angle between the extrusion direction of the cylinder and its positive Z axis, measured around its X axis. The angle is positive towards its positive Y axis. Valid range: {{Value|0° <= value < 90°}}. The default is {{Value|0°}}. (v0.20)

Scripting

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

A Part Cylinder can be created with the {{Incode|addObject()}} method of the document:

cylinder = FreeCAD.ActiveDocument.addObject("Part::Cylinder", "myCylinder")
  • Where {{Incode|"myCylinder"}} is the name for the object.
  • The function returns the newly created object.

Example:

import FreeCAD as App

doc = App.activeDocument()

cylinder = doc.addObject("Part::Cylinder", "myCylinder")
cylinder.Radius = 10
cylinder.Height = 50
cylinder.Placement = App.Placement(App.Vector(5, 10, 15), App.Rotation(75, 60, 30))

doc.recompute()

{{Part_Tools_navi

}}

documentation index > Part > Part Cylinder/sv