[
  {
    "type": "pcb_board",
    "pcb_board_id": "pcb_board_1",
    "width": 40,
    "height": 30,
    "thickness": 1.6,
    "center": { "x": 0, "y": 0 }
  },
  {
    "type": "pcb_cutout",
    "pcb_cutout_id": "pcb_cutout_1",
    "shape": "rect",
    "center": { "x": -11, "y": 4 },
    "width": 14,
    "height": 3,
    "rotation": 30,
    "corner_radius": 1.5
  },
  {
    "type": "pcb_cutout",
    "pcb_cutout_id": "pcb_cutout_2",
    "shape": "rect",
    "center": { "x": 11, "y": -4 },
    "width": 10,
    "height": 8,
    "corner_radius": 2
  },
  {
    "type": "pcb_cutout",
    "pcb_cutout_id": "pcb_cutout_3",
    "shape": "rect",
    "center": { "x": -11, "y": -8 },
    "width": 6,
    "height": 6,
    "corner_radius": 10
  },
  {
    "type": "pcb_cutout",
    "pcb_cutout_id": "pcb_cutout_4",
    "shape": "rect",
    "center": { "x": 0, "y": 12 },
    "width": 8,
    "height": 0
  }
]