Bolt circle calculator

Open Bolt circle calculator on Happytails.ai. This view has the same page content and links, with explicit tool capabilities. Read the processing notes before using a tool.

Tool capabilities

{
  "id": "bolt-circle-calculator",
  "category": "calculators",
  "built": true,
  "requirements": "1–360 equally spaced centres. Start angles can be −360,000 to 360,000 degrees and are normalized to 0–360 degrees. Extremely small circles relative to a large centre offset are rejected to avoid numeric precision loss.",
  "implementation": {
    "fields": [
      {
        "key": "diameter",
        "label": "Bolt-circle diameter",
        "value": 100,
        "type": "number",
        "min": 0,
        "max": 1000000000,
        "step": "any"
      },
      {
        "key": "unit",
        "label": "Coordinate unit",
        "value": "mm",
        "type": "select",
        "values": [
          "mm",
          "cm",
          "m",
          "in",
          "ft"
        ]
      },
      {
        "key": "holes",
        "label": "Hole centres",
        "value": 4,
        "type": "number",
        "min": 1,
        "max": 360,
        "step": 1
      },
      {
        "key": "startAngle",
        "label": "First angle (degrees)",
        "value": 0,
        "type": "number",
        "min": -360000,
        "max": 360000,
        "step": "any"
      },
      {
        "key": "direction",
        "label": "Numbering direction",
        "value": "Counterclockwise",
        "type": "select",
        "values": [
          "Counterclockwise",
          "Clockwise"
        ]
      },
      {
        "key": "centerX",
        "label": "Centre X",
        "value": 0,
        "type": "number",
        "min": -1000000,
        "max": 1000000,
        "step": "any"
      },
      {
        "key": "centerY",
        "label": "Centre Y",
        "value": 0,
        "type": "number",
        "min": -1000000,
        "max": 1000000,
        "step": "any"
      }
    ],
    "input": false,
    "live": true,
    "presentation": "metrics",
    "note": "Generate up to 360 equally spaced hole centres. Zero degrees points right along +X; +Y points up. The SVG is a schematic, not a full-size drilling template. Hole diameter and engineering fit are not evaluated. Changing units keeps the entered numbers. All calculations stay on your device. These estimates do not establish structural safety or code compliance.",
    "experience": {
      "automatic": true,
      "single": false,
      "inputMaxLength": 1000000,
      "inputMode": "text",
      "label": "Your text",
      "placeholder": "Type or paste your input…",
      "help": "Change the input or settings to update your result. Results update as you type. Up to 1,000,000 characters.",
      "helpParts": [
        "Change the input or settings to update your result.",
        "Results update as you type.",
        "Up to 1,000,000 characters."
      ],
      "action": null
    },
    "mode": "automatic",
    "interactive": false
  },
  "execution": "Browser interface",
  "api": null,
  "browser_agent": {
    "supported": true,
    "name": "run_current_tool",
    "discovery": "WebMCP on the human page in a supporting browser",
    "verification": "See audit/API-AUDIT.md; availability is not verification"
  }
}

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