[
  {
    "type": "pcb_board",
    "pcb_board_id": "board_0",
    "width": 60,
    "height": 40,
    "thickness": 1.6,
    "center": { "x": 0, "y": 0 },
    "outline": [
      { "x": -30, "y": -20 },
      { "x": 30, "y": -20 },
      { "x": 30, "y": 20 },
      { "x": -30, "y": 20 }
    ]
  },
  {
    "type": "pcb_plated_hole",
    "pcb_plated_hole_id": "plain_circle",
    "shape": "circle",
    "x": -20,
    "y": -12,
    "outer_diameter": 2.4,
    "hole_diameter": 1,
    "layers": ["top", "bottom"]
  },
  {
    "type": "pcb_plated_hole",
    "pcb_plated_hole_id": "plain_oval",
    "shape": "oval",
    "x": -8,
    "y": -12,
    "outer_width": 2.6,
    "outer_height": 2,
    "hole_width": 1.8,
    "hole_height": 1.2,
    "ccw_rotation": 0,
    "layers": ["top", "bottom"]
  },
  {
    "type": "pcb_plated_hole",
    "pcb_plated_hole_id": "circle_with_rect_pad",
    "shape": "circular_hole_with_rect_pad",
    "hole_shape": "circle",
    "pad_shape": "rect",
    "x": 4,
    "y": -12,
    "hole_diameter": 1,
    "rect_pad_width": 2.4,
    "rect_pad_height": 2.4,
    "hole_offset_x": 0.5,
    "hole_offset_y": 0.3,
    "layers": ["top", "bottom"]
  },
  {
    "type": "pcb_plated_hole",
    "pcb_plated_hole_id": "pill_with_rect_pad",
    "shape": "pill_hole_with_rect_pad",
    "hole_shape": "pill",
    "pad_shape": "rect",
    "x": 16,
    "y": -12,
    "hole_width": 1.8,
    "hole_height": 1.2,
    "rect_pad_width": 2.4,
    "rect_pad_height": 2.4,
    "hole_offset_x": 0.5,
    "hole_offset_y": 0.3,
    "layers": ["top", "bottom"]
  },
  {
    "type": "pcb_plated_hole",
    "pcb_plated_hole_id": "rotated_pill_with_rect_pad",
    "shape": "rotated_pill_hole_with_rect_pad",
    "hole_shape": "rotated_pill",
    "pad_shape": "rect",
    "x": -20,
    "y": 8,
    "hole_width": 1.8,
    "hole_height": 1.2,
    "hole_ccw_rotation": 30,
    "rect_pad_width": 2.4,
    "rect_pad_height": 2.4,
    "rect_ccw_rotation": 0,
    "hole_offset_x": 0.5,
    "hole_offset_y": 0.3,
    "layers": ["top", "bottom"]
  },
  {
    "type": "pcb_plated_hole",
    "pcb_plated_hole_id": "polygon_pad_with_pill_hole",
    "shape": "hole_with_polygon_pad",
    "hole_shape": "pill",
    "x": 4,
    "y": 8,
    "hole_width": 1.8,
    "hole_height": 1.2,
    "pad_outline": [
      { "x": -1.2, "y": -1.2 },
      { "x": 1.2, "y": -1.2 },
      { "x": 1.2, "y": 1.2 },
      { "x": -1.2, "y": 1.2 }
    ],
    "hole_offset_x": 0.5,
    "hole_offset_y": 0.3,
    "layers": ["top", "bottom"]
  }
]