{
  "schema_version": "1.0",
  "rubrics": [
    {
      "id": "R1",
      "requirement": "The model shall be a single solid part 92 mm long overall along one axis."
    },
    {
      "id": "R2",
      "requirement": "The model shall have Ø15 shaft sections at both ends, with a left journal length of 13 mm."
    },
    {
      "id": "R3",
      "requirement": "The model shall have Ø23 hub sections on both sides of the gear, with the first hub 14 mm long and a 47 mm span from the start of the first hub to the end of the second hub."
    },
    {
      "id": "R4",
      "requirement": "The model shall have a spur gear 15 mm wide with a 40 mm outside diameter and a 31 mm root diameter, with teeth evenly spaced around the shaft axis."
    },
    {
      "id": "R5",
      "requirement": "The model shall have C1 chamfers on the gear tooth edges."
    },
    {
      "id": "R6",
      "requirement": "The model shall have R3 fillets where the hubs meet the gear."
    },
    {
      "id": "R7",
      "requirement": "The model shall have a square drive 12 mm across flats extending 16 mm from the right end."
    },
    {
      "id": "R8",
      "requirement": "The model shall have a C1.5 chamfer on the right end and a center hole in the right end face."
    },
    {
      "id": "R9",
      "requirement": "The drawing shall contain a front view, a hatched longitudinal section view, an end view showing the teeth and an isometric view."
    },
    {
      "id": "R10",
      "requirement": "The drawing shall dimension the lengths 13, 14, 15, 47, 16 and 92."
    },
    {
      "id": "R11",
      "requirement": "The drawing shall dimension the diameters 15, 23 and 40 in the front view and 31 in the section view."
    },
    {
      "id": "R12",
      "requirement": "The drawing shall annotate R3, C1, C1.5, R10, 4, 1.2, 2 and 12."
    },
    {
      "id": "R13",
      "requirement": "The drawing shall carry the center hole note \"KS B 0410 60° A 2,\"."
    },
    {
      "id": "R14",
      "requirement": "The drawing shall be on an A3 sheet."
    },
    {
      "id": "R15",
      "requirement": "The drawing shall be file creo-ex-13.drw, referencing the part file creo-ex-13.prt."
    }
  ]
}