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NPM Version NPM DL MIT License

Follow @appliedengdesign

CNCCodes JSON Schema

This project is a schema definition for using JSON to store description and usage information about G & M codes. It was developed out of a necessity for G-Code Reference. It will be updated as the needs arise for the various types of G/M codes and various Machine Tools or 3D Printers.

Latest NPM Version: v0.3.0

Latest Draft Schema Version: 2022-07

Previous Versions: 2022-06

Schema

{
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "$id": "https://appliedengdesign.github.io/cnccodes-json-schema/draft/2022-07/schema",
    "title": "G/M Code Dictionary",
    "description": "JSON Schema for CNC G & M Codes",
    "type": "object",
    "required": [
        "title",
        "description",
        "type",
        "machineType"
    ],
    "properties": {
        "$schema": {
            "description": "Link to this schema",
            "type": "string"
        },
        "title": {
            "description": "Descriptive title of the JSON Reference",
            "type": "string"
        },
        "description": {
            "description": "Description of the JSON Reference",
            "type": "string"
        },
        "keywords": {
            "description": "An Array of string keywords describing the JSON Reference (Optional)",
            "type": "array",
            "items": {
                "type": "string"
            }
        },
        "type": {
            "description": "The type of code (G or M)",
            "type": "string",
            "enum": [
                "gcode",
                "mcode"
            ]
        },
        "machineType": {
            "description": "The type of CNC machine",
            "type": "string",
            "enum": [
                "edm",
                "mill",
                "lathe",
                "laser",
                "printer",
                "swiss"
            ]
        },
        "variant": {
            "description": "Defined if G/M Codes are for specific MTB/3DP Variant. (Must be lower case, 3-8 characters)",
            "type": "object",
            "properties": {
                "name": {
                    "type": "string",
                    "minLength": 3,
                    "maxLength": 8,
                    "pattern": "[a-z0-9]"
                },
                "remove": {
                    "type": "array",
                    "items": {
                        "type": "string"
                    },
                    "uniqueItems": true
                }
            }
        },
        "codes": {
            "description": "Individual G/M Codes",
            "type": "object",
            "patternProperties": {
                "^G|^M": {
                    "type": "object",
                    "properties": {
                        "category": {
                            "description": "Category for the code",
                            "type": "string",
                            "enum": [
                                "motion",
                                "coordinate",
                                "compensation",
                                "canned",
                                "other",
                                "mcode"
                            ]
                        },
                        "modal": {
                            "description": "Modal / Non-Modal (boolean)",
                            "type": "boolean"
                        },
                        "shortDesc": {
                            "description": "A short description of the code",
                            "type": "string",
                            "minLength": 3
                        },
                        "desc": {
                            "description": "A longer description with markdown formatting",
                            "type": "string",
                            "minLength": 3
                        },
                        "parameters": {
                            "$ref": "#/$defs/parameters"
                        }
                    },
                    "additionalProperties": false,
                    "required": [
                        "category",
                        "shortDesc"
                    ]
                },
                "additionalProperties": false
            },
            "minProperties": 1
        }
    },
    "additionalProperties": false,
    "$defs": {
        "parameters": {
            "description": "An array of possible parameters to the code",
            "type": "object",
            "patternProperties": {
                "^[A-Z]{1}": {
                    "type": "object",
                    "properties": {
                        "shortDesc": {
                            "description": "A short description of the parameter",
                            "type": "string",
                            "minLength": 3
                        },
                        "desc": {
                            "description": "A description of the parameter",
                            "type": "string",
                            "minLength": 3
                        },
                        "optional": {
                            "description": "Parameter is required (boolean)",
                            "type": "boolean"
                        }
                    },
                    "required": [
                        "shortDesc",
                        "optional"
                    ],
                    "additionalProperties": false
                }
            },
            "minProperties": 1
        }
    }
}

Goals

Provide a an accurate JSON Schema to validate JSON files containing G & M code information.

Usage

Use the schema in your JSON that describes a set of G & M codes in your project (Or use our gcode-reference project) by adding https://appliedengdesign.github.io/cnccodes-json-schema/draft/2022-06/schema to your $schema reference in your JSON file.

Alternatively, you can install this as a package inside of your Javscript or Typescript project:

Install the latest version:

npm install @appliedengdesign/cnccodes-json-schema

Reference the schema file from node_modules:

node_modules/@appliedengdesign/cnccodes-json-schema/dist/schema/cnccodes.schema.json

Or use directly in script applications:

// Import the Schema
import { cncCodesJSONSchema } from 'cnccodes-json-schema';
// OR
const cncCodesJSONSchema = require('cnccodes-json-schema');

// Use schema with AJV
const Ajv = require('ajv').default;
const validate = ajv.compile(cncCodesJSONSchema);

Issues

If you find any bugs or issues with the package, please create a new GitHub issue.

Contributing

For information on contributing, please refer to the CONTRIBUTING doc for workflows and best practices.

About Applied Eng & Design

We are a full service engineering and design firm, specializing in CAD/CAM, CNC milling, rapid prototyping, training and more. We also like to dabble in Arudino / RaspberryPi projects, electronics, drones and robotics projects! Subscribe to our YouTube channel for videos on our projects, screencast tutorials, and more!

Follow us on Twitter & Instagram, and like our Facebook Page!

License

This extension is licensed under the MIT License.