{
  "schema_version": "1.0",
  "rubrics": [
    {
      "id": "R1",
      "requirement": "The drawing shall contain three orthographic views of the plummer block: a top view, a front view aligned below it, and a side view to the right of the front view."
    },
    {
      "id": "R2",
      "requirement": "The top view shall show an 80 x 40 outline with R10 rounded corners and two Ø8 holes, one in each 25-wide end lug."
    },
    {
      "id": "R3",
      "requirement": "The front view shall show an 80-wide, 40-tall body with a 10-thick base and a central R20 half-round saddle cutout with a 41.95 opening."
    },
    {
      "id": "R4",
      "requirement": "The front view shall show two side lugs with R8 rounded corners, each with a Ø8 hole, and hidden lines representing the hole bores."
    },
    {
      "id": "R5",
      "requirement": "The side view shall measure 28.86 wide and 29 tall with a 9-thick base step."
    },
    {
      "id": "R6",
      "requirement": "The drawing shall contain exactly four Ø8 hole circles."
    },
    {
      "id": "R7",
      "requirement": "The drawing shall contain four block references serving as hole centre marks."
    },
    {
      "id": "R8",
      "requirement": "The drawing shall contain 20 native dimension objects: 11 linear, 5 radial and 4 diameter."
    },
    {
      "id": "R9",
      "requirement": "The dimensions shall include the linear values 80, 25 (twice), 40 (twice), 10 (twice), 41.95, 28.86, 29 and 9, the radial values R10 (twice), R8 (twice) and R20, and Ø8 four times."
    },
    {
      "id": "R10",
      "requirement": "The drawing shall contain no text or title notes."
    },
    {
      "id": "R11",
      "requirement": "The drawing shall define layers M-OUTL (ACI 7, Continuous, 0.5 mm), M-HIDN (ACI 4, HIDDEN, 0.25 mm), M-CNTR (ACI 1, CENTER, 0.18 mm), M-HATC (ACI 8, Continuous, 0.18 mm) and M-DIMS (ACI 2, Continuous, 0.25 mm)."
    },
    {
      "id": "R12",
      "requirement": "All dimensions shall be on layer M-DIMS."
    },
    {
      "id": "R13",
      "requirement": "The sectioned regions shall be filled with three native ANSI31 hatch objects on layer M-HATC, not exploded lines."
    },
    {
      "id": "R14",
      "requirement": "No drawing geometry shall be placed on layer 0."
    }
  ]
}