flange-with-patterns

// Flange
// A flange is a flat rim, collar, or rib, typically forged or cast, that is used to strengthen an object, guide it, or attach it to another object. Flanges are known for their use in various applications, including piping, plumbing, and mechanical engineering, among others.

// Define constants
const mountingHoleDia = 2
const holeCount = 8
const baseDia = 60
const pipeDia = 30
const thickness = 5
const extrusion = 30
const baseThickness = 10

// Create the circular pattern for the mounting holes
const circles = startSketchOn('XY')
  |> circle([baseDia/2 - 6, 0], mountingHoleDia, %)
  |> patternCircular2d({
       arcDegrees: 360,
       center: [0, 0],
       repetitions: holeCount,
       rotateDuplicates: true
     }, %)

// Create the base of the flange and add the mounting holes
const flangeBase = startSketchOn('XY')
  |> circle([0, 0], baseDia/2, %)
  |> hole(circles, %)
  |> hole(circle([0, 0], pipeDia/2, %), %)
  |> extrude(baseThickness, %)

// Define the innerCircle radius
const innerCircle = circle([0, 0], pipeDia/2, startSketchOn(flangeBase, "end"))

// Create the extrusion on the flange and cut the inner hole
const flangePipe = circle([0, 0], (pipeDia+thickness)/2, startSketchOn('XY'))
  |> hole(innerCircle, %)
  |> extrude(extrusion, %)