{
  "schema_version": "1.0",
  "rubrics": [
    {
      "id": "R1",
      "requirement": "The drawing shall contain exactly one 3DSOLID representing the complete bracket as a single united body."
    },
    {
      "id": "R2",
      "requirement": "The solid shall include two parallel cylindrical bosses of R18 (36 dia) outer radius."
    },
    {
      "id": "R3",
      "requirement": "The boss axes shall be 60 apart, giving an overall width across the bosses of 96."
    },
    {
      "id": "R4",
      "requirement": "Each of the two bosses shall have an Ø18 through-hole on its axis."
    },
    {
      "id": "R5",
      "requirement": "The two bosses shall be joined by a web forming a single link-shaped head with a recessed channel between the bosses."
    },
    {
      "id": "R6",
      "requirement": "The solid shall include a rectangular upright block beneath the head."
    },
    {
      "id": "R7",
      "requirement": "The overall height of the solid from the base of the upright to the top of the bosses shall be 108."
    },
    {
      "id": "R8",
      "requirement": "The overall front-to-back depth of the solid shall be 37."
    },
    {
      "id": "R9",
      "requirement": "The rear face of the upright shall carry a rectangular groove running across the width of the block."
    },
    {
      "id": "R10",
      "requirement": "The solid shall include a tapered rib on the front of the upright that narrows towards the base."
    },
    {
      "id": "R11",
      "requirement": "The drawing units shall be millimetres (INSUNITS = 4) and the model shall be at full size."
    },
    {
      "id": "R12",
      "requirement": "The drawing shall contain layer M-SOLID with colour ACI 7, linetype Continuous and lineweight 0.50 mm."
    },
    {
      "id": "R13",
      "requirement": "The drawing shall contain layer M-CONS with colour ACI 8, linetype Continuous and lineweight 0.13 mm."
    },
    {
      "id": "R14",
      "requirement": "The 3DSOLID shall reside on layer M-SOLID."
    },
    {
      "id": "R15",
      "requirement": "The six construction LINE entities shall reside on layer M-CONS."
    },
    {
      "id": "R16",
      "requirement": "No drawing geometry shall be placed on layer 0."
    }
  ]
}