modeling-app/docs/kcl-std/functions/std-helix.md

title, subtitle, excerpt, layout

title	subtitle	excerpt	layout
helix	Function in std	Create a helix.	manual

Create a helix.

helix(
  revolutions: number(_),
  angleStart: number(Angle),
  ccw?: bool,
  radius?: number(Length),
  axis?: Axis3d | Edge,
  length?: number(Length),
  cylinder?: Solid,
): Helix

Arguments

Name	Type	Description	Required
revolutions	number(_)	Number of revolutions.	Yes
angleStart	number(Angle)	Start angle.	Yes
ccw	bool	Is the helix rotation counter clockwise? The default is false.	No
radius	number(Length)	Radius of the helix.	No
axis	Axis3d or Edge	Axis to use for the helix.	No
length	number(Length)	Length of the helix. This is not necessary if the helix is created around an edge. If not given the length of the edge is used.	No
cylinder	Solid	Cylinder to create the helix on.	No

Returns

Helix - A helix; created by the helix function.

Examples

// Create a helix around the Z axis.
helixPath = helix(
  angleStart = 0,
  ccw = true,
  revolutions = 5,
  length = 10,
  radius = 5,
  axis = Z,
)

// Create a spring by sweeping around the helix path.
springSketch = startSketchOn(XZ)
  |> circle(center = [5, 0], radius = 0.5)
  |> sweep(path = helixPath)

// Create a helix around an edge.
helper001 = startSketchOn(XZ)
  |> startProfile(at = [0, 0])
  |> line(end = [0, 10], tag = $edge001)

helixPath = helix(
  angleStart = 0,
  ccw = true,
  revolutions = 5,
  length = 10,
  radius = 5,
  axis = edge001,
)

// Create a spring by sweeping around the helix path.
springSketch = startSketchOn(XZ)
  |> circle(center = [5, 0], radius = 0.5)
  |> sweep(path = helixPath)

// Create a helix around a custom axis.
helixPath = helix(
  angleStart = 0,
  ccw = true,
  revolutions = 5,
  length = 10,
  radius = 5,
  axis = {
    direction = [0, 0, 1.0],
    origin = [0, 0.25, 0]
  },
)

// Create a spring by sweeping around the helix path.
springSketch = startSketchOn(XZ)
  |> circle(center = [5, 0], radius = 1)
  |> sweep(path = helixPath)

// Create a helix on a cylinder.


part001 = startSketchOn(XY)
  |> circle(center = [5, 5], radius = 10)
  |> extrude(length = 10)

helix(
  angleStart = 0,
  ccw = true,
  revolutions = 16,
  cylinder = part001,
)