{
  "revision": "Two-layer baffle tray v3; existing hardware; physical fit pending",
  "mount_centers_mm": [
    [
      -16,
      41.5
    ],
    [
      16,
      41.5
    ],
    [
      -41.5,
      9.525
    ],
    [
      41.5,
      9.525
    ]
  ],
  "cup_centers_mm": [
    [
      -9.525,
      28.575
    ],
    [
      9.525,
      28.575
    ],
    [
      -28.575,
      9.525
    ],
    [
      -9.525,
      9.525
    ],
    [
      9.525,
      9.525
    ],
    [
      28.575,
      9.525
    ]
  ],
  "PRINT_FIRST_two_key_top_sample": {
    "size_mm": [
      48.0,
      26.950000762939453,
      3.0
    ],
    "volume_mm3": 2399.875246860068,
    "watertight": true,
    "one_solid": true
  },
  "PRINT_FIRST_two_key_baffle_sample": {
    "size_mm": [
      39.99997329711914,
      26.449996948242188,
      12.0
    ],
    "volume_mm3": 3552.6758813916927,
    "watertight": true,
    "one_solid": true
  },
  "WAIT_full_top_plate": {
    "size_mm": [
      94.0,
      94.0,
      4.0
    ],
    "volume_mm3": 16032.60223084939,
    "watertight": true,
    "one_solid": true
  },
  "WAIT_six_light_baffle_tray": {
    "size_mm": [
      91.0,
      45.32499694824219,
      12.0
    ],
    "volume_mm3": 9537.867680341147,
    "watertight": true,
    "one_solid": true
  },
  "insert_pilot_diameter_mm": 3.9,
  "insert_pilot_depth_mm": 4.3,
  "insert_top_z_mm": 22.0,
  "nominal_insert_thread_engagement_mm": 4.0,
  "screw_tip_clearance_to_blind_well_floor_mm": 1.0,
  "post_radial_wall_outside_insert_mm": 1.9,
  "screw_tip_above_tray_bottom_mm": 7.0,
  "insert_fit_note": "The insert intentionally overlaps the raw pilot; installed interference checks remove its melted envelope. Pilot fit, thermal distortion and pullout strength require physical testing.",
  "case_tray_overlap_mm3": 0.0,
  "top_plate_tray_overlap_mm3": 0.0,
  "KB2040_reference_tray_overlap_mm3": 0.0,
  "encoder_reference_tray_overlap_mm3": 0.0,
  "joystick_underside_reference_tray_overlap_mm3": 0.0,
  "top_plate_case_overlap_mm3": 0.0,
  "nominal_LED_to_pin_envelope_gap_mm": 0.8,
  "nominal_tray_to_controller_gap_mm": 1.1,
  "limits": [
    "Not physically printed or load/fatigue tested. No claim of verified strength.",
    "Switch, pin, controller, encoder and joystick underside envelopes are approximations; solder joints and wires require a real fit check.",
    "Test two small parts with real switches, keycaps, LEDs and two M3x8 screws and two M3x4 heat-set inserts before full print.",
    "Undo tray screws from above while supporting the tray. Install inserts only with the tray removed, unpowered and empty; let them cool before assembly.",
    "LED pockets locate LEDs but do not clamp them: use a thin removable insulating adhesive pad, total thickness 0.2mm allowance.",
    "Keep service slack and insulate LED rear pads; no electrical disconnect is included.",
    "Full top plate prints underside down; shallow switch reliefs may need slicer-specific support. Physical joystick fit remains pending.",
    "Reference assembly and older main animation are not manufacturing verification."
  ]
}