kcl

union

Union two or more solids into a single solid.

union(
  solids: [Solid],
  tolerance?: number,
): [Solid]

Arguments

NameTypeDescriptionRequired
solids[Solid]The solids to union.Yes
tolerancenumberThe tolerance to use for the union operation.No

Returns

[Solid]

Examples

// Union two cubes using the stdlib functions.


fn cube(center, size) {
  return startSketchOn(XY)
    |> startProfileAt([center[0] - size, center[1] - size], %)
    |> line(endAbsolute = [center[0] + size, center[1] - size])
    |> line(endAbsolute = [center[0] + size, center[1] + size])
    |> line(endAbsolute = [center[0] - size, center[1] + size])
    |> close()
    |> extrude(length = 10)
}

part001 = cube([0, 0], 10)
part002 = cube([7, 3], 5)
  |> translate(z = 1)

unionedPart = union([part001, part002])

Rendered example of union 0

// Union two cubes using operators.
// NOTE: This will not work when using codemods through the UI.
// Codemods will generate the stdlib function call instead.


fn cube(center, size) {
  return startSketchOn(XY)
    |> startProfileAt([center[0] - size, center[1] - size], %)
    |> line(endAbsolute = [center[0] + size, center[1] - size])
    |> line(endAbsolute = [center[0] + size, center[1] + size])
    |> line(endAbsolute = [center[0] - size, center[1] + size])
    |> close()
    |> extrude(length = 10)
}

part001 = cube([0, 0], 10)
part002 = cube([7, 3], 5)
  |> translate(z = 1)

// This is the equivalent of: union([part001, part002])
unionedPart = part001 + part002

Rendered example of union 1

// Union two cubes using the more programmer-friendly operator.
// NOTE: This will not work when using codemods through the UI.
// Codemods will generate the stdlib function call instead.


fn cube(center, size) {
  return startSketchOn(XY)
    |> startProfileAt([center[0] - size, center[1] - size], %)
    |> line(endAbsolute = [center[0] + size, center[1] - size])
    |> line(endAbsolute = [center[0] + size, center[1] + size])
    |> line(endAbsolute = [center[0] - size, center[1] + size])
    |> close()
    |> extrude(length = 10)
}

part001 = cube([0, 0], 10)
part002 = cube([7, 3], 5)
  |> translate(z = 1)

  // This is the equivalent of: union([part001, part002])
  // Programmers will understand `|` as a union operation, but mechanical engineers
// will understand `+`, we made both work.
unionedPart = part001 | part002

Rendered example of union 2