{
  "revision": "R63",
  "scope": "UNPOWERED_OFF_BODY_BENCH_ONLY",
  "automatic_engagement_truth_table": [
    {
      "mask": 0,
      "states": [
        "closed",
        "closed",
        "closed"
      ],
      "full_insertion_clear": false,
      "expected_clear": false,
      "intersection_mm3": [
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      "passed": true
    },
    {
      "mask": 1,
      "states": [
        "spread",
        "closed",
        "closed"
      ],
      "full_insertion_clear": false,
      "expected_clear": false,
      "intersection_mm3": [
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      "passed": true
    },
    {
      "mask": 2,
      "states": [
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        "closed"
      ],
      "full_insertion_clear": false,
      "expected_clear": false,
      "intersection_mm3": [
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      "passed": true
    },
    {
      "mask": 3,
      "states": [
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        "closed"
      ],
      "full_insertion_clear": false,
      "expected_clear": false,
      "intersection_mm3": [
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      "passed": true
    },
    {
      "mask": 4,
      "states": [
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        "spread"
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      "full_insertion_clear": false,
      "expected_clear": false,
      "intersection_mm3": [
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      "passed": true
    },
    {
      "mask": 5,
      "states": [
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      ],
      "full_insertion_clear": false,
      "expected_clear": false,
      "intersection_mm3": [
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      ],
      "passed": true
    },
    {
      "mask": 6,
      "states": [
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        "spread"
      ],
      "full_insertion_clear": false,
      "expected_clear": false,
      "intersection_mm3": [
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        0.0,
        0.0
      ],
      "passed": true
    },
    {
      "mask": 7,
      "states": [
        "spread",
        "spread",
        "spread"
      ],
      "full_insertion_clear": true,
      "expected_clear": true,
      "intersection_mm3": [
        0.0,
        0.0,
        0.0
      ],
      "passed": true
    }
  ],
  "insertion_sweeps": [
    {
      "mask": 0,
      "first_block_stroke_mm": 7.739130434782608,
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      "expected_full_insertion": false,
      "passed": true
    },
    {
      "mask": 1,
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      "passed": true
    },
    {
      "mask": 2,
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      "expected_full_insertion": false,
      "passed": true
    },
    {
      "mask": 3,
      "first_block_stroke_mm": 147.04347826086956,
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      "passed": true
    },
    {
      "mask": 4,
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      "passed": true
    },
    {
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      "passed": true
    },
    {
      "mask": 6,
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      "passed": true
    },
    {
      "mask": 7,
      "first_block_stroke_mm": null,
      "max_intersection_mm3": 0.0,
      "expected_full_insertion": true,
      "passed": true
    }
  ],
  "return_lock": [
    {
      "tier": "R62_T1_SPREAD_PROOF_BRACKET",
      "samples": [
        {
          "radial_return_mm": 0.25,
          "intersection_mm3": 0.0,
          "blocked": false
        },
        {
          "radial_return_mm": 0.5,
          "intersection_mm3": 12.428654112136325,
          "blocked": true
        },
        {
          "radial_return_mm": 1,
          "intersection_mm3": 58.39554422439784,
          "blocked": true
        },
        {
          "radial_return_mm": 2,
          "intersection_mm3": 156.04293182551456,
          "blocked": true
        },
        {
          "radial_return_mm": 5,
          "intersection_mm3": 420.59896114647705,
          "blocked": true
        }
      ],
      "passed": true
    },
    {
      "tier": "R62_T2_SPREAD_PROOF_BRACKET",
      "samples": [
        {
          "radial_return_mm": 0.25,
          "intersection_mm3": 0.0,
          "blocked": false
        },
        {
          "radial_return_mm": 0.5,
          "intersection_mm3": 12.428654112136325,
          "blocked": true
        },
        {
          "radial_return_mm": 1,
          "intersection_mm3": 58.39554422439784,
          "blocked": true
        },
        {
          "radial_return_mm": 2,
          "intersection_mm3": 156.04293182551456,
          "blocked": true
        },
        {
          "radial_return_mm": 5,
          "intersection_mm3": 420.59896114647705,
          "blocked": true
        }
      ],
      "passed": true
    },
    {
      "tier": "R62_T3_SPREAD_PROOF_BRACKET",
      "samples": [
        {
          "radial_return_mm": 0.25,
          "intersection_mm3": 0.0,
          "blocked": false
        },
        {
          "radial_return_mm": 0.5,
          "intersection_mm3": 12.428654112136325,
          "blocked": true
        },
        {
          "radial_return_mm": 1,
          "intersection_mm3": 58.39554422439784,
          "blocked": true
        },
        {
          "radial_return_mm": 2,
          "intersection_mm3": 156.04293182551456,
          "blocked": true
        },
        {
          "radial_return_mm": 5,
          "intersection_mm3": 420.59896114647705,
          "blocked": true
        }
      ],
      "passed": true
    }
  ],
  "fixed_hardware_clearance": [
    {
      "fixed": "guide_sleeve",
      "tier": "R62_T1_SPREAD_PROOF_BRACKET",
      "state": "closed",
      "intersection_mm3": 0.0,
      "passed": true
    },
    {
      "fixed": "guide_sleeve",
      "tier": "R62_T1_SPREAD_PROOF_BRACKET",
      "state": "spread",
      "intersection_mm3": 0.0,
      "passed": true
    },
    {
      "fixed": "guide_sleeve",
      "tier": "R62_T2_SPREAD_PROOF_BRACKET",
      "state": "closed",
      "intersection_mm3": 0.0,
      "passed": true
    },
    {
      "fixed": "guide_sleeve",
      "tier": "R62_T2_SPREAD_PROOF_BRACKET",
      "state": "spread",
      "intersection_mm3": 0.0,
      "passed": true
    },
    {
      "fixed": "guide_sleeve",
      "tier": "R62_T3_SPREAD_PROOF_BRACKET",
      "state": "closed",
      "intersection_mm3": 0.0,
      "passed": true
    },
    {
      "fixed": "guide_sleeve",
      "tier": "R62_T3_SPREAD_PROOF_BRACKET",
      "state": "spread",
      "intersection_mm3": 0.0,
      "passed": true
    },
    {
      "fixed": "spring_housing",
      "tier": "R62_T1_SPREAD_PROOF_BRACKET",
      "state": "closed",
      "intersection_mm3": 0.0,
      "passed": true
    },
    {
      "fixed": "spring_housing",
      "tier": "R62_T1_SPREAD_PROOF_BRACKET",
      "state": "spread",
      "intersection_mm3": 0.0,
      "passed": true
    },
    {
      "fixed": "spring_housing",
      "tier": "R62_T2_SPREAD_PROOF_BRACKET",
      "state": "closed",
      "intersection_mm3": 0.0,
      "passed": true
    },
    {
      "fixed": "spring_housing",
      "tier": "R62_T2_SPREAD_PROOF_BRACKET",
      "state": "spread",
      "intersection_mm3": 0.0,
      "passed": true
    },
    {
      "fixed": "spring_housing",
      "tier": "R62_T3_SPREAD_PROOF_BRACKET",
      "state": "closed",
      "intersection_mm3": 0.0,
      "passed": true
    },
    {
      "fixed": "spring_housing",
      "tier": "R62_T3_SPREAD_PROOF_BRACKET",
      "state": "spread",
      "intersection_mm3": 0.0,
      "passed": true
    },
    {
      "fixed": "detent",
      "tier": "R62_T1_SPREAD_PROOF_BRACKET",
      "state": "closed",
      "intersection_mm3": 0.0,
      "passed": true
    },
    {
      "fixed": "detent",
      "tier": "R62_T1_SPREAD_PROOF_BRACKET",
      "state": "spread",
      "intersection_mm3": 0.0,
      "passed": true
    },
    {
      "fixed": "detent",
      "tier": "R62_T2_SPREAD_PROOF_BRACKET",
      "state": "closed",
      "intersection_mm3": 0.0,
      "passed": true
    },
    {
      "fixed": "detent",
      "tier": "R62_T2_SPREAD_PROOF_BRACKET",
      "state": "spread",
      "intersection_mm3": 0.0,
      "passed": true
    },
    {
      "fixed": "detent",
      "tier": "R62_T3_SPREAD_PROOF_BRACKET",
      "state": "closed",
      "intersection_mm3": 0.0,
      "passed": true
    },
    {
      "fixed": "detent",
      "tier": "R62_T3_SPREAD_PROOF_BRACKET",
      "state": "spread",
      "intersection_mm3": 0.0,
      "passed": true
    }
  ],
  "parts": [
    {
      "id": "R63_CAPTIVE_MASTER_PIN",
      "kind": "METAL_PIN_ENVELOPE",
      "motion": "slide_y",
      "stl": "MODELS/NEW/R63_CAPTIVE_MASTER_PIN.stl",
      "step": "MODELS/NEW/R63_CAPTIVE_MASTER_PIN.step",
      "z0": "MODELS/Z0/R63_CAPTIVE_MASTER_PIN_Z0.stl",
      "triangles": 1048,
      "volume_mm3": 12619.866771966219,
      "bounds_mm": [
        [
          313.0,
          -108.0,
          382.0024719238281
        ],
        [
          347.0,
          100.0,
          417.0
        ]
      ],
      "sha256": "2d2d5c1c4eb70e7243471c58fa59c81db63612d5d58bb60e9a5c6eecaf737f29",
      "notes": "7 mm nominal master pin with collar and pull handle. Spring-biased engagement candidate; actual material and strength remain physical-test items."
    },
    {
      "id": "R63_CAPTIVE_PIN_GUIDE_SLEEVE",
      "kind": "PRINTED_BENCH_CANDIDATE",
      "motion": "fixed",
      "stl": "MODELS/NEW/R63_CAPTIVE_PIN_GUIDE_SLEEVE.stl",
      "step": "MODELS/NEW/R63_CAPTIVE_PIN_GUIDE_SLEEVE.step",
      "z0": "MODELS/Z0/R63_CAPTIVE_PIN_GUIDE_SLEEVE_Z0.stl",
      "triangles": 2044,
      "volume_mm3": 42007.475549429655,
      "bounds_mm": [
        [
          308.0,
          -166.0,
          344.0
        ],
        [
          352.0,
          -100.0,
          402.0
        ]
      ],
      "sha256": "ebf50f381b1ba281a3fe98406fb3480538e254149c646b81a7f3b51b74792289",
      "notes": "Captures the master pin outside the proof-bracket stack. Bench-fixture mount with two reference fastener holes."
    },
    {
      "id": "R63_SPRING_HOUSING",
      "kind": "PRINTED_BENCH_CANDIDATE",
      "motion": "fixed",
      "stl": "MODELS/NEW/R63_SPRING_HOUSING.stl",
      "step": "MODELS/NEW/R63_SPRING_HOUSING.step",
      "z0": "MODELS/Z0/R63_SPRING_HOUSING_Z0.stl",
      "triangles": 1528,
      "volume_mm3": 61914.1625129953,
      "bounds_mm": [
        [
          310.0,
          -272.0,
          370.0
        ],
        [
          350.0,
          -154.0,
          410.0
        ]
      ],
      "sha256": "48559fb06c953f67d56c70e5cc266bad7958673af87d4f6064cabf89f37d28d2",
      "notes": "Housing envelope for a future compression spring. Spring selection must follow measured insertion force and physical bench data."
    },
    {
      "id": "R63_COMPRESSION_SPRING_ENVELOPE",
      "kind": "METAL_SPRING_REFERENCE",
      "motion": "compress_y",
      "stl": "MODELS/NEW/R63_COMPRESSION_SPRING_ENVELOPE.stl",
      "step": "MODELS/NEW/R63_COMPRESSION_SPRING_ENVELOPE.step",
      "z0": "MODELS/Z0/R63_COMPRESSION_SPRING_ENVELOPE_Z0.stl",
      "triangles": 1008,
      "volume_mm3": 11512.314083471894,
      "bounds_mm": [
        [
          322.0024719238281,
          -250.0,
          382.0
        ],
        [
          337.9975280761719,
          -156.0,
          398.0
        ]
      ],
      "sha256": "cdf860ea3923b38abb06496519f64d0cc25a1ea05f26e3e1010be15567c60988",
      "notes": "Reference envelope only, not a selected or rated spring."
    },
    {
      "id": "R63_SERVICE_RETRACTION_DETENT",
      "kind": "PRINTED_BENCH_CANDIDATE",
      "motion": "fixed",
      "stl": "MODELS/NEW/R63_SERVICE_RETRACTION_DETENT.stl",
      "step": "MODELS/NEW/R63_SERVICE_RETRACTION_DETENT.step",
      "z0": "MODELS/Z0/R63_SERVICE_RETRACTION_DETENT_Z0.stl",
      "triangles": 52,
      "volume_mm3": 22888.0,
      "bounds_mm": [
        [
          301.0,
          -286.0,
          376.0
        ],
        [
          359.0,
          -278.0,
          438.0
        ]
      ],
      "sha256": "6f8067f61785f2f291822f1a746ea0d60abc70e5d716e06536145362d1ce1e5f",
      "notes": "Manual service detent for holding the spring-biased pin retracted. Release requires deliberate handle movement; not a safety-rated lockout."
    },
    {
      "id": "R63_LOCK_STATE_FLAG",
      "kind": "PRINTED_INDICATOR",
      "motion": "slide_y",
      "stl": "MODELS/NEW/R63_LOCK_STATE_FLAG.stl",
      "step": "MODELS/NEW/R63_LOCK_STATE_FLAG.step",
      "z0": "MODELS/Z0/R63_LOCK_STATE_FLAG_Z0.stl",
      "triangles": 36,
      "volume_mm3": 6192.0,
      "bounds_mm": [
        [
          346.0,
          -131.0,
          403.0
        ],
        [
          374.0,
          -89.0,
          433.0
        ]
      ],
      "sha256": "4afb88f2bcb554597adfa56fc421af17913116f249ab349b222d16fbbff8712c",
      "notes": "Moves with the pin to give a direct mechanical visual indication of pin position. Not redundant sensing."
    },
    {
      "id": "R63_PIN_BORE_FIT_GAUGE",
      "kind": "PRINTED_GAUGE",
      "motion": "fixed",
      "stl": "MODELS/NEW/R63_PIN_BORE_FIT_GAUGE.stl",
      "step": "MODELS/NEW/R63_PIN_BORE_FIT_GAUGE.step",
      "z0": "MODELS/Z0/R63_PIN_BORE_FIT_GAUGE_Z0.stl",
      "triangles": 1536,
      "volume_mm3": 16494.87631649159,
      "bounds_mm": [
        [
          -42.0,
          -6.0,
          -9.0
        ],
        [
          42.0,
          6.0,
          9.0
        ]
      ],
      "sha256": "56b4783313115dc638a3464339c025c8c4727461dff1342bca9c4c34b1e73a7e",
      "notes": "Three bores around the nominal proof-bracket fit for physical printer calibration before bench use."
    }
  ],
  "passed": true,
  "new_part_clearance": [
    {
      "a": "R63_CAPTIVE_PIN_GUIDE_SLEEVE",
      "b": "R63_SERVICE_RETRACTION_DETENT",
      "intersection_mm3": 0.0,
      "passed": true
    },
    {
      "a": "R63_SPRING_HOUSING",
      "b": "R63_SERVICE_RETRACTION_DETENT",
      "intersection_mm3": 0.0,
      "passed": true
    }
  ],
  "boundary_note": "R63 demonstrates a spring-biased automatic-engagement geometry candidate only. The compression spring is an envelope, not a selected component. Spring force, fatigue, impact, contamination, wear, tolerance stack, pin bending, detent reliability, redundant sensing, human clearance, and safe failure behavior are not established. Do not treat this as a certified fail-safe interlock."
}