Part Helix
|
|
| Menu location |
|---|
| Part → Primitive → Helix |
| Workbenches |
| Part |
| Default shortcut |
| None |
| Introduced in version |
| - |
| See also |
| Part Primitives |
Description[edit | edit source]
A Part Helix is a parametric shape that can be created with the
Part Primitives command. In the coordinate system defined by its DataPlacement property, the axis of the helix matches the Z-axis and its bottom point, the start point, lies on the X-axis.
Usage[edit | edit source]
See Part Primitives.
Example[edit | edit source]

A Part Helix object created with the scripting example below is shown here.
Notes[edit | edit source]
- A Part Helix can be used to create screw threads. See Thread for Screw Tutorial.
Properties[edit | edit source]
See also: Property View.
A Part Helix object is derived from a Part Feature object and inherits all its properties. It also has the following additional properties:
Data[edit | edit source]
Attachment
The object has the same attachment properties as a Part Part2DObject.
Coordinate System
- DataLocal Coord (
Enumeration): The handedness, or direction, of the helix:Right-handedorLeft-handed. The default isRight-handed, meaning the helix turns counterclockwise as it goes up.
Helix
- DataPitch (
Length): The distance between two consecutive turns of the helix measured along its Z-axis. The default is1mm. - DataHeight (
Length): The height of the helix. The default is2mm. - DataRadius (
Length): The start radius of the helix. The helix has a constant radius if DataAngle is0°. - DataSegment Length (
QuantityConstraint): The number of turns per helix subdivision. The default is1, meaning each full turn of the helix is a separate segment. Use0to suppress subdivision. - DataAngle (
Angle): The angle that defines of the outer shape of the helix. Valid range:-90° < value < 90°. The default is0°. If it is0°the helix is cylindrical, else it is conical.
Scripting[edit | edit source]
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()
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