{
  "units": "mm",
  "base": [200, 140, 12],
  "plate_thickness": 8,
  "plate_bottom": 16,
  "datum_pitch": 80,
  "datum_hole_diameter": 6.03,
  "round_pin_diameter": 5.98,
  "diamond_pin_width_x": 5.4,
  "guide_bottom": 36,
  "guide_thickness": 12,
  "drill_diameter": 4.2,
  "bushing_od": 10,
  "insert_width": 100,
  "insert_height": 70,
  "insert_thickness": 8,
  "variants": [
    {"name": "A", "width": 120, "height": 80, "holes": [[-25,-20],[25,-20],[0,20]]},
    {"name": "B", "width": 130, "height": 80, "holes": [[-28,-18],[28,-18],[0,24]]},
    {"name": "C", "width": 140, "height": 80, "holes": [[-30,-22],[30,-22],[0,22]]}
  ],
  "tolerance": {
    "datum_hole_max": 6.04,
    "pin_min": 5.975,
    "locator_position_radial": 0.015,
    "insert_seating_radial": 0.010,
    "bushing_position_radial": 0.015,
    "drill_bushing_radial_clearance": 0.015,
    "drill_walk_allowance": 0.040,
    "allowed_radial_error": 0.20,
    "datum_pitch_error": 0.10
  }
}