{
  "inputChecksumsVerified": true,
  "exportRoundTripsVerified": true,
  "manufacturedMeshesWatertight": true,
  "nominalNoAddedInterferences": true,
  "basis": "All device edits remove only boss side-wall material. Every other device part and every OEM placement retains R2 geometry. This does not establish loads, tolerances or physical performance.",
  "partDifferences": [
    {
      "part": "C27_UC1_01_Front_Shell_Chalk_Centered_Mic",
      "addedMm3": 0.0,
      "removedMm3": 6.411750885850779,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_02_Back_Shell_Chalk",
      "addedMm3": 0.0,
      "removedMm3": 2.6629894314537523,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_03_Front_Action_Rigid_Carrier",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_04_Status_Lens",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_05_Front_Switch_Clamp",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_06_PTT_Rigid_Carrier",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_07_Volume_Up_Rigid_Carrier",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_08_Volume_Down_Rigid_Carrier",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_09_Warm_Grey_Elastomer_Rim",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_10_Front_Action_Pewter_Cap",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_11_Front_Action_Bond_Film",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_12_Volume_Up_Pewter_Cap",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_13_Volume_Up_Bond_Film",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_14_Volume_Down_Pewter_Cap",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_15_Volume_Down_Bond_Film",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_16_Orange_Ribbed_PTT_Grip",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_17_PTT_Bond_Film",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_PCB_Front_Seat_1",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_PCB_Rear_Preload_1",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_PCB_Front_Seat_2",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_PCB_Rear_Preload_2",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_PCB_Front_Seat_3",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_PCB_Rear_Preload_3",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_PCB_Front_Seat_4",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_PCB_Rear_Preload_4",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Battery_Front_Pad_-1_Segment_1",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Battery_Front_Pad_-1_Segment_2",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Battery_Rear_Pad_-1",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Battery_Side_Liner_-1",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Battery_Front_Pad_1",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Battery_Rear_Pad_1",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Battery_Side_Liner_1",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Battery_Lower_Liner",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Battery_Upper_Liner_-1",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Battery_Upper_Liner_1",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Speaker_Front_Gasket",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Speaker_Ear_Keeper_1",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Speaker_Ear_Preload_1",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Speaker_Ear_Keeper_2",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Speaker_Ear_Preload_2",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Microphone_Removable_Keeper",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Microphone_Rear_Preload",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Mic_Front_Seat_1",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Mic_Front_Seat_2",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Mic_Front_Seat_3",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Mic_Front_Seat_4",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Microphone_Acoustic_Seal",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Microphone_Acoustic_Membrane",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_LED_Horizontal_Removable_Keeper",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_LED_Saddle_Pad_1",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_LED_Saddle_Pad_2",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Internal_Right_Angle_Light_Coupler",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_Optical_Coupling_Film",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_LTE_Nonmetallic_Service_Frame",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_LTE_Dielectric_Seat",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    },
    {
      "part": "C27_UC1_LTE_Seat_Bond_Film",
      "addedMm3": 0.0,
      "removedMm3": 0.0,
      "boundsUnchanged": true,
      "method": "volume delta and subtractive-only construction; not an independent coincident-face Boolean difference"
    }
  ],
  "bossTapers": [
    {
      "part": "C27_UC1_01_Front_Shell_Chalk_Centered_Mic",
      "feature": "boss outer wall",
      "centerXY": [
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      ],
      "zRange": [
        -12,
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      ],
      "draftDegrees": 1.0,
      "rootRadius": 2.8,
      "tipRadius": 2.766835376636386,
      "tipEnd": "low",
      "removedMm3": 0.552124096560874,
      "note": "Axial seat and central bore preserved; small reduction in annular bearing area requires physical load/torque qualification."
    },
    {
      "part": "C27_UC1_02_Back_Shell_Chalk",
      "feature": "boss outer wall",
      "centerXY": [
        -33.4,
        -56
      ],
      "zRange": [
        -14,
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      ],
      "draftDegrees": 1.0,
      "rootRadius": 2.8,
      "tipRadius": 2.766835376636386,
      "tipEnd": "high",
      "removedMm3": 0.5524986156669911,
      "note": "Axial seat and central bore preserved; small reduction in annular bearing area requires physical load/torque qualification."
    },
    {
      "part": "C27_UC1_01_Front_Shell_Chalk_Centered_Mic",
      "feature": "boss outer wall",
      "centerXY": [
        -33.4,
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      "zRange": [
        -12,
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      "draftDegrees": 1.0,
      "rootRadius": 2.8,
      "tipRadius": 2.766835376636386,
      "tipEnd": "low",
      "removedMm3": 0.5520048585312907,
      "note": "Axial seat and central bore preserved; small reduction in annular bearing area requires physical load/torque qualification."
    },
    {
      "part": "C27_UC1_02_Back_Shell_Chalk",
      "feature": "boss outer wall",
      "centerXY": [
        -33.4,
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      ],
      "zRange": [
        -14,
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      ],
      "draftDegrees": 1.0,
      "rootRadius": 2.8,
      "tipRadius": 2.766835376636386,
      "tipEnd": "high",
      "removedMm3": 0.5512198791038827,
      "note": "Axial seat and central bore preserved; small reduction in annular bearing area requires physical load/torque qualification."
    },
    {
      "part": "C27_UC1_01_Front_Shell_Chalk_Centered_Mic",
      "feature": "boss outer wall",
      "centerXY": [
        33.4,
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      ],
      "zRange": [
        -12,
        -10
      ],
      "draftDegrees": 1.0,
      "rootRadius": 2.8,
      "tipRadius": 2.766835376636386,
      "tipEnd": "low",
      "removedMm3": 0.5522124043527583,
      "note": "Axial seat and central bore preserved; small reduction in annular bearing area requires physical load/torque qualification."
    },
    {
      "part": "C27_UC1_02_Back_Shell_Chalk",
      "feature": "boss outer wall",
      "centerXY": [
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        -56
      ],
      "zRange": [
        -14,
        -12
      ],
      "draftDegrees": 1.0,
      "rootRadius": 2.8,
      "tipRadius": 2.766835376636386,
      "tipEnd": "high",
      "removedMm3": 0.5526084109296789,
      "note": "Axial seat and central bore preserved; small reduction in annular bearing area requires physical load/torque qualification."
    },
    {
      "part": "C27_UC1_01_Front_Shell_Chalk_Centered_Mic",
      "feature": "boss outer wall",
      "centerXY": [
        33.4,
        56
      ],
      "zRange": [
        -12,
        -10
      ],
      "draftDegrees": 1.0,
      "rootRadius": 2.8,
      "tipRadius": 2.766835376636386,
      "tipEnd": "low",
      "removedMm3": 0.5520897158603475,
      "note": "Axial seat and central bore preserved; small reduction in annular bearing area requires physical load/torque qualification."
    },
    {
      "part": "C27_UC1_02_Back_Shell_Chalk",
      "feature": "boss outer wall",
      "centerXY": [
        33.4,
        56
      ],
      "zRange": [
        -14,
        -12
      ],
      "draftDegrees": 1.0,
      "rootRadius": 2.8,
      "tipRadius": 2.766835376636386,
      "tipEnd": "high",
      "removedMm3": 0.5513367476742133,
      "note": "Axial seat and central bore preserved; small reduction in annular bearing area requires physical load/torque qualification."
    },
    {
      "part": "C27_UC1_01_Front_Shell_Chalk_Centered_Mic",
      "feature": "boss outer wall",
      "centerXY": [
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      ],
      "zRange": [
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        -2.1
      ],
      "draftDegrees": 1.0,
      "rootRadius": 2.55,
      "tipRadius": 2.5019985714474013,
      "tipEnd": "low",
      "removedMm3": 1.0508527998899808,
      "note": "Axial seat and central bore preserved; small reduction in annular bearing area requires physical load/torque qualification."
    },
    {
      "part": "C27_UC1_01_Front_Shell_Chalk_Centered_Mic",
      "feature": "boss outer wall",
      "centerXY": [
        -9.1,
        65.6
      ],
      "zRange": [
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        -2.1
      ],
      "draftDegrees": 1.0,
      "rootRadius": 2.55,
      "tipRadius": 2.5019985714474013,
      "tipEnd": "low",
      "removedMm3": 1.0508231655621785,
      "note": "Axial seat and central bore preserved; small reduction in annular bearing area requires physical load/torque qualification."
    },
    {
      "part": "C27_UC1_01_Front_Shell_Chalk_Centered_Mic",
      "feature": "boss outer wall",
      "centerXY": [
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        18.4
      ],
      "zRange": [
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        -2.1
      ],
      "draftDegrees": 1.0,
      "rootRadius": 2.55,
      "tipRadius": 2.5019985714474013,
      "tipEnd": "low",
      "removedMm3": 1.0508556893546483,
      "note": "Axial seat and central bore preserved; small reduction in annular bearing area requires physical load/torque qualification."
    },
    {
      "part": "C27_UC1_01_Front_Shell_Chalk_Centered_Mic",
      "feature": "boss outer wall",
      "centerXY": [
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      ],
      "zRange": [
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      ],
      "draftDegrees": 1.0,
      "rootRadius": 2.55,
      "tipRadius": 2.5019985714474013,
      "tipEnd": "low",
      "removedMm3": 1.0507881557387009,
      "note": "Axial seat and central bore preserved; small reduction in annular bearing area requires physical load/torque qualification."
    },
    {
      "part": "C27_UC1_02_Back_Shell_Chalk",
      "feature": "boss outer wall",
      "centerXY": [
        -14,
        -32
      ],
      "zRange": [
        -21.81,
        -20.83
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      "draftDegrees": 1.0,
      "rootRadius": 2.7,
      "tipRadius": 2.6846395428631684,
      "tipEnd": "high",
      "removedMm3": 0.11450650216283975,
      "note": "Axial seat and central bore preserved; small reduction in annular bearing area requires physical load/torque qualification."
    },
    {
      "part": "C27_UC1_02_Back_Shell_Chalk",
      "feature": "boss outer wall",
      "centerXY": [
        -14,
        64
      ],
      "zRange": [
        -21.81,
        -20.83
      ],
      "draftDegrees": 1.0,
      "rootRadius": 2.7,
      "tipRadius": 2.6846395428631684,
      "tipEnd": "high",
      "removedMm3": 0.11310657243302558,
      "note": "Axial seat and central bore preserved; small reduction in annular bearing area requires physical load/torque qualification."
    },
    {
      "part": "C27_UC1_02_Back_Shell_Chalk",
      "feature": "boss outer wall",
      "centerXY": [
        14,
        -32
      ],
      "zRange": [
        -21.81,
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      ],
      "draftDegrees": 1.0,
      "rootRadius": 2.7,
      "tipRadius": 2.6846395428631684,
      "tipEnd": "high",
      "removedMm3": 0.11453478400653694,
      "note": "Axial seat and central bore preserved; small reduction in annular bearing area requires physical load/torque qualification."
    },
    {
      "part": "C27_UC1_02_Back_Shell_Chalk",
      "feature": "boss outer wall",
      "centerXY": [
        14,
        64
      ],
      "zRange": [
        -21.81,
        -20.83
      ],
      "draftDegrees": 1.0,
      "rootRadius": 2.7,
      "tipRadius": 2.6846395428631684,
      "tipEnd": "high",
      "removedMm3": 0.11317791947658407,
      "note": "Axial seat and central bore preserved; small reduction in annular bearing area requires physical load/torque qualification."
    }
  ],
  "castingMasters": [
    "C27_UC1_FRONT_CASTING_MASTER_NO_GRILLE",
    "C27_UC1_02_Back_Shell_Chalk_CASTING_MASTER",
    "C27_UC1_09_Warm_Grey_Elastomer_Rim_CASTING_MASTER",
    "C27_UC1_16_Orange_Ribbed_PTT_Grip_CASTING_MASTER"
  ],
  "masterGrilleHoleCount": 0,
  "secondaryDrillHoleCount": 121,
  "drilledMasterMatchesFinishedPart": true,
  "shrinkCompensationApplied": false,
  "physicalQualification": false,
  "moldReleaseApproved": false,
  "seconds": 50.197075843811035
}