{
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  "preset": "v60_02",
  "surface_style": "spiral_flow",
  "release_scale": 1.0,
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  "single_piece_outer_radius_mm": 162.94424444831716,
  "single_piece_inner_radius_mm": 36.32578641308365,
  "single_piece_angle_deg": 167.71542665807843,
  "seam_allowance_mm": 8.0,
  "gore_count": 4,
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  "gore_heights_mm": [
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  "support_max_span_mm": 144.3181818181818,
  "support_min_span_mm": 132.59660145669088,
  "support_hole_diameter_mm": 23.863636363636363
}