{
  "revision": "25_2_E1",
  "status": "PARTIAL ENGINEERING REVISION \u2014 NOT A COMPLETE RELEASE",
  "rest_gap_mm": 0.14,
  "stop_travel_mm": 0.65,
  "switch_case_bearing_mm": 3.26,
  "source_switch": "Omron B3F4000 actual supplied geometry",
  "parts": {
    "07_W_grille": {
      "valid": true,
      "solids": 1,
      "volume_mm3": 2468.6839050293506
    },
    "11_Speaker_cradle": {
      "valid": true,
      "solids": 1,
      "volume_mm3": 1064.952785677136
    },
    "05_Volume_keys": {
      "valid": true,
      "solids": 2,
      "volume_mm3": 2038.4780872313922
    },
    "06_Status_lens": {
      "valid": true,
      "solids": 1,
      "volume_mm3": 63.44700451605527
    },
    "09_Grille_bond_frame": {
      "valid": true,
      "solids": 1,
      "volume_mm3": 42.43579491000986
    },
    "02_Soft_grips": {
      "valid": true,
      "solids": 2,
      "volume_mm3": 29752.311567765144
    },
    "12_Rear_alignment_lip": {
      "valid": true,
      "solids": 1,
      "volume_mm3": 1141.3539424463158
    },
    "13_Microphone_seat": {
      "valid": true,
      "solids": 1,
      "volume_mm3": 368.9955742875643
    },
    "04_PTT_paddle": {
      "valid": true,
      "solids": 1,
      "volume_mm3": 4854.3878097607685
    },
    "14_Play_glyph_inlay": {
      "valid": true,
      "solids": 1,
      "volume_mm3": 1.0856440000000054
    },
    "03_Play_key_38mm": {
      "valid": true,
      "solids": 1,
      "volume_mm3": 4895.551498455203
    },
    "08_Acoustic_backing_REFERENCE": {
      "valid": true,
      "solids": 1,
      "volume_mm3": 553.846699144669
    },
    "01a_Rigid_housing_front": {
      "valid": true,
      "solids": 1,
      "volume_mm3": 20564.673492410868
    },
    "01b_Rigid_housing_rear": {
      "valid": true,
      "solids": 1,
      "volume_mm3": 25588.61728916419
    },
    "FRONT_SWITCH_GUIDE_AND_MOUNT": {
      "valid": true,
      "solids": 1,
      "volume_mm3": 1972.5504523922752
    },
    "FRONT_SWITCH_REACTION_PLATE": {
      "valid": true,
      "solids": 1,
      "volume_mm3": 541.3995030983258
    }
  },
  "motion": [
    {
      "travel_mm": 0,
      "contacts": []
    },
    {
      "travel_mm": 0.14,
      "contacts": []
    },
    {
      "travel_mm": 0.3,
      "contacts": []
    },
    {
      "travel_mm": 0.5,
      "contacts": []
    },
    {
      "travel_mm": 0.64,
      "contacts": []
    },
    {
      "travel_mm": 0.65,
      "contacts": []
    },
    {
      "travel_mm": 0.66,
      "contacts": [
        {
          "part": "FRONT_SWITCH_GUIDE_AND_MOUNT",
          "volume_mm3": 4.651050643354185
        }
      ]
    }
  ],
  "hardware_collisions": [],
  "assumptions": [
    "Nominal switch body captured between bearing faces; verify tolerance and clamping without crushing case.",
    "M2 pilot diameter 1.7 mm is a PA12 prototype assumption; qualify drill/thread/torque.",
    "Axial checks do not establish off-centre press reliability or permissible switch overtravel.",
    "Harness, PCB, speaker, battery, antenna and closure rebuild remain separate work items."
  ]
}