{
  "title": "ctrlPlanner reference datasets",
  "description": "Reference data computed by the same engine that runs the free tools. Free to use with attribution.",
  "license": "CC-BY-4.0",
  "datasets": [
    {
      "id": "ra-ladder",
      "title": "Surface finish preferred-number ladder, Ra",
      "standard": [
        "ISO 4288",
        "ASME B46.1"
      ],
      "url": "https://ctrlplanner.com/data/ra-ladder.json",
      "page": "https://ctrlplanner.com/convert"
    },
    {
      "id": "gdt-controls",
      "title": "ASME Y14.5-2018 geometric characteristics and feature control frame legality",
      "standard": [
        "ASME Y14.5-2018"
      ],
      "url": "https://ctrlplanner.com/data/gdt-controls.json",
      "page": "https://ctrlplanner.com/gdt"
    },
    {
      "id": "thread-multipliers",
      "title": "Pitch diameter shift per unit of coating thickness, by thread flank angle",
      "standard": [
        "MIL-STD-870",
        "Federal Screw Thread Specification H28"
      ],
      "url": "https://ctrlplanner.com/data/thread-multipliers.json",
      "page": "https://ctrlplanner.com/walkback"
    },
    {
      "id": "unified-thread-limits",
      "title": "Unified inch screw thread pitch diameter limits",
      "standard": [
        "ASME B1.1",
        "Federal Screw Thread Specification H28"
      ],
      "url": "https://ctrlplanner.com/data/unified-thread-limits.json",
      "page": "https://ctrlplanner.com/walkback"
    },
    {
      "id": "process-windows",
      "title": "Process windows for tolerance walk-back",
      "standard": [
        "MIL-PRF-8625",
        "MIL-STD-870"
      ],
      "url": "https://ctrlplanner.com/data/process-windows.json",
      "page": "https://ctrlplanner.com/walkback"
    }
  ]
}