modeling-app/docs/kcl/hollow.md

title, excerpt, layout

title	excerpt	layout
hollow	Make the inside of a 3D object hollow.	manual

Make the inside of a 3D object hollow.

Remove volume from a 3-dimensional shape such that a wall of the provided thickness remains around the exterior of the shape.

hollow(
  thickness: number,
  solid: Solid,
): Solid

Arguments

Name	Type	Description	Required
thickness	number		Yes
solid	Solid		Yes

Returns

Solid

Examples

// Hollow a basic sketch.
firstSketch = startSketchOn(XY)
  |> startProfileAt([-12, 12], %)
  |> line(end = [24, 0])
  |> line(end = [0, -24])
  |> line(end = [-24, 0])
  |> close()
  |> extrude(length = 6)
  |> hollow(0.25, %)

// Hollow a basic sketch.
firstSketch = startSketchOn(-XZ)
  |> startProfileAt([-12, 12], %)
  |> line(end = [24, 0])
  |> line(end = [0, -24])
  |> line(end = [-24, 0])
  |> close()
  |> extrude(length = 6)
  |> hollow(0.5, %)

// Hollow a sketch on face object.
size = 100
case = startSketchOn(-XZ)
  |> startProfileAt([-size, -size], %)
  |> line(end = [2 * size, 0])
  |> line(end = [0, 2 * size])
  |> tangentialArc(endAbsolute = [-size, size])
  |> close()
  |> extrude(length = 65)

thing1 = startSketchOn(case, face = END)
  |> circle(center = [-size / 2, -size / 2], radius = 25)
  |> extrude(length = 50)

thing2 = startSketchOn(case, face = END)
  |> circle(center = [size / 2, -size / 2], radius = 25)
  |> extrude(length = 50)

hollow(0.5, case)