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	An solid is a collection of extrude surfaces.	Yes

Returns

Solid - An solid is a collection of extrude surfaces.

Examples

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

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

// Hollow a sketch on face object.
let size = 100
const case = startSketchOn('-XZ')
  |> startProfileAt([-size, -size], %)
  |> line([2 * size, 0], %)
  |> line([0, 2 * size], %)
  |> tangentialArcTo([-size, size], %)
  |> close(%)
  |> extrude(65, %)

const thing1 = startSketchOn(case, 'end')
  |> circle({
       center: [-size / 2, -size / 2],
       radius: 25
     }, %)
  |> extrude(50, %)

const thing2 = startSketchOn(case, 'end')
  |> circle({
       center: [size / 2, -size / 2],
       radius: 25
     }, %)
  |> extrude(50, %)

hollow(0.5, case)