A regular dodecahedron or pentagonal dodecahedron is a dodecahedron composed of regular pentagonal faces, three meeting at each vertex. This example shows constructing the a dodecahedron with a series of intersects.

// Dodecahedron
// A regular dodecahedron or pentagonal dodecahedron is a dodecahedron composed of regular pentagonal faces, three meeting at each vertex. This example shows constructing the a dodecahedron with a series of intersects.
// Categories: Maker

// Set units
@settings(defaultLengthUnit = in, kclVersion = 1.0)

// Define the dihedral angle for a regular dodecahedron
dihedral = 116.565

// Create a face template function that makes a large thin cube
fn createFaceTemplate(@dither) {
  baseSketch = startSketchOn(XY)
    |> startProfile(at = [-1000 - dither, -1000 - dither])
    |> line(endAbsolute = [1000 + dither, -1000 - dither])
    |> line(endAbsolute = [1000 + dither, 1000 + dither])
    |> line(endAbsolute = [-1000 - dither, 1000 + dither])
    |> close()
  extruded = extrude(baseSketch, length = 1000 + dither + 1000)
  return extruded
    |> translate(x = 0, y = 0, z = -260 - dither)
}

// Define the rotations array with [pitch, roll, yaw, dither] for each face
faceRotations = [
  [0, 0, 0, 0],
  // face1 - reference face
  [dihedral, 0, 0, 0.1],
  // face2
  [dihedral, 0, 72, 0.2],
  // face3
  [dihedral, 0, 144, 0.3],
  // face4
  [dihedral, 0, 216, 0.4],
  // face5
  [dihedral, 0, 288, 0.5],
  // face6
  [180, 0, 0, 0.6],
  // face7
  [180 - dihedral, 0, 36, 0.7],
  // face8
  [180 - dihedral, 0, 108, 0.8],
  // face9
  [180 - dihedral, 0, 180, 0.9],
  // face10
  [180 - dihedral, 0, 252, 0.11],
  // face11
  [180 - dihedral, 0, 324, 0.12],
  // face12
]

// Create faces by mapping over the rotations array
dodecFaces = map(
  faceRotations,
  f = fn(@rotation) {
    return createFaceTemplate(rotation[3])
      |> rotate(
           pitch = rotation[0],
           roll = rotation[1],
           yaw = rotation[2],
           global = true,
         )
  },
)

fn calculateArrayLength(@arr) {
  return reduce(
    arr,
    initial = 0,
    f = fn(@item, accum) {
      return accum + 1
    },
  )
}

fn createIntersection(@solids) {
  fn reduceIntersect(@previous, accum) {
    return intersect([previous, accum])
  }
  lastIndex = calculateArrayLength(solids) - 1
  lastSolid = solids[lastIndex]
  remainingSolids = pop(solids)
  return reduce(remainingSolids, initial = lastSolid, f = reduceIntersect)
}

// Apply intersection to all faces
createIntersection(dodecFaces)


Zookeeper

Zookeeper: The Conversational CAD Agent For Parametric Modeling

Automation

Automating Your Workflow

File Formats

A Practical Overview of CAD File Formats

KCL: A Programming Language for Parametric CAD

Geometry Engine

Zoo CAD Engine Overview

dodecahedron