{
  "model": "climbing_crack_brace",
  "parameters": {
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    "flat_slope_angle": 45,
    "footprint_rotation": 90,
    "plywood_thickness": 18,
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        {
          "name": "Panel C",
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        {
          "name": "Panel E",
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      "panel_volume_mm3": 114972.0418320626,
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      "color": "#8289b5",
      "tilt_to_plane_1_deg": 45.00000000000001,
      "nominal_tilt_deg": 45.00000000000001,
      "tilt_reference_plane": 1,
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      "wall_edge_lengths_mm": [
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    {
      "id": "E",
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      "shape": "quadrilateral",
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          "cut_plane_limit_mm": 0
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        {
          "name": "Panel D",
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      "extra_cuts": [],
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  "joint_angles": [
    {
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        "C"
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      "included_angle_deg": 153.43494882292202
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    {
      "panels": [
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    {
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      "included_angle_deg": 161.56505117707798
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  "edges": [
    {
      "name": "Plane 2",
      "contact_panel": null,
      "long_edge_mm": 149.32089472006248,
      "short_edge_mm": 122.07127222964615,
      "bevel_from_square_deg": 29.999999999999996,
      "cut_plane_to_face_deg": 60.0,
      "cut_plane_normal": [
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      "cut_plane_limit_mm": 0
    },
    {
      "name": "Plane 1",
      "contact_panel": null,
      "long_edge_mm": 149.3208947200625,
      "short_edge_mm": 122.07127222964615,
      "bevel_from_square_deg": 29.999999999999996,
      "cut_plane_to_face_deg": 60.0,
      "cut_plane_normal": [
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      "cut_plane_limit_mm": 0
    },
    {
      "name": "Panel C",
      "contact_panel": "C",
      "long_edge_mm": 172.4209175245277,
      "short_edge_mm": 140.9557637642126,
      "bevel_from_square_deg": 13.28252558853899,
      "cut_plane_to_face_deg": 76.71747441146101,
      "cut_plane_normal": [
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      "cut_plane_limit_mm": -3.5664772616275866
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  ],
  "panel_volume_mm3": 156768.16618758763,
  "panel_watertight": true,
  "all_panels_watertight": true,
  "extra_apex_cuts": 0,
  "structural_status": "NOT VERIFIED - geometry only",
  "assumptions": [
    "Two ideal reference planes intersect at exactly 90 degrees.",
    "Angles assume zero assembly clearance and no kerf allowance.",
    "Reference patches are automatically sized, zero-thickness previews, not backing material.",
    "Surface count is a geometric option, not a structural safety rating."
  ],
  "unresolved": [
    "Fasteners and connections to supporting structure",
    "Load cases, dynamic climbing forces, deflection and stability",
    "Plywood material/grade, grain, weather exposure and local structural requirements",
    "Real supporting-plane alignment, saw setup, tolerances and cut test-fit"
  ],
  "angle_convention": "Bevel from square: 0 degrees is perpendicular to the plywood face. Corner angles are long-face interior angles, not saw miter-dial settings. Polygon and cap joints can require additional trims; use the selected panel's complete report."
}