{
  "schema_version": "1.0",
  "rubrics": [
    {
      "id": "R1",
      "requirement": "The model shall have an overall bounding size of approximately 264 × 96 × 102 mm (263.96 long, 96 wide, 102 high)."
    },
    {
      "id": "R2",
      "requirement": "The model shall be an open-top hollow box with a continuous top flange having four corner bolt holes and R10 corner rounding."
    },
    {
      "id": "R3",
      "requirement": "The model shall have two circular bearing bosses of R40 on each long side wall, with centres spaced 64 apart."
    },
    {
      "id": "R4",
      "requirement": "Each bearing boss shall have a central bore of R14 (Ø28) surrounded by four equally spaced bolt holes."
    },
    {
      "id": "R5",
      "requirement": "The bearing bore axes shall lie within 1 mm of 57 above the base and 45 below the top face."
    },
    {
      "id": "R6",
      "requirement": "The model shall have a triangular mounting lug at each end projecting 48.98 beyond the 166 long body, with an R18 rounded tip."
    },
    {
      "id": "R7",
      "requirement": "Each mounting lug shall contain a Ø16 through hole with a Ø28 counterbore."
    },
    {
      "id": "R8",
      "requirement": "The model shall have a volume of approximately 618,019 mm³."
    },
    {
      "id": "R9",
      "requirement": "The model shall consist only of planar and cylindrical faces."
    },
    {
      "id": "R10",
      "requirement": "The drawing shall contain top, front and isometric views and a side view, in third-angle projection."
    },
    {
      "id": "R11",
      "requirement": "The drawing shall dimension the overall length (about 264) and the 166 body length."
    },
    {
      "id": "R12",
      "requirement": "The drawing shall dimension the height 102 and the width 96."
    },
    {
      "id": "R13",
      "requirement": "The drawing shall carry the callouts R40, R18, Ø16 and Ø28."
    },
    {
      "id": "R14",
      "requirement": "The drawing title block shall show a title, a drawing number and sheet 1 OF 1, and the drawing shall state that dimensions are in millimetres."
    },
    {
      "id": "R15",
      "requirement": "The model shall be a single solid body in millimetre units saved as Dual-Port_Valve_Housing.prt."
    },
    {
      "id": "R16",
      "requirement": "The drawing shall be saved as Dual-Port_Valve_Housing_dwg1.prt with views referencing the Dual-Port_Valve_Housing part."
    }
  ]
}