{
  "format": "partforge-vector",
  "version": 1,
  "units": "mm",
  "note": "Emblem backing plate. Drawn at 40 x 24 mm with M3 clearance holes on 28 mm centres and a keyway placed low, in the gap between the emblem artwork's disc and its bar, so it stays a real through-slot rather than getting capped by the emboss at the default emblem_w. Coordinates are millimetres and place as authored, so `body`, `holes`, and `keyway` share one frame — the cut in build lands where it is drawn.",
  "shapes": {
    "body": {
      "role": "add",
      "regions": [
        { "outer": { "kind": "rect", "center": [0, 0], "width": 40, "height": 24, "radius": 4 } }
      ]
    },
    "holes": {
      "role": "subtract",
      "regions": [
        { "outer": { "kind": "circle", "center": [-14, 0], "r": 1.7 } },
        { "outer": { "kind": "circle", "center": [14, 0], "r": 1.7 } }
      ]
    },
    "keyway": {
      "role": "subtract",
      "regions": [
        { "outer": { "kind": "polygon", "points": [[-3, -8], [3, -8], [0, -4]] } }
      ]
    }
  }
}