camspec.json schema

Core Structure

A CAMSPEC document consists of four main sections:

{
  "$schema": "https://camspec.org/schema/1.0.0/camspec.json",
  "version": "1.0.0",
  "manifest": [...],
  "constraints": [...],
  "globalConstraints": [...],
  "optimization": {...}
}

Version

The version field follows semantic versioning (X.Y.Z format):

{
  "version": "1.0.0"
}

Manifest

The manifest section lists all CAD models included in the specification. Each entry describes a single model file:

{
  "manifest": [
    {
      "id": "550e8400-e29b-41d4-a716-446655440000",
      "file": "part.stl",
      "format": "STL_ASCII",
      "name": "Example Part",
      "priority": 75,
      "quantity": 1,
      "units": "MM",
      "referenceTransform": {
        "rotation": [1, 0, 0, 0, 1, 0, 0, 0, 1],
        "translation": [0, 0, 0]
      }
    }
  ]
}

Manifest Properties

Property	Required	Description
id	Yes	UUID for unique identification
file	Yes	Path to model file relative to models directory
format	Yes	One of: STEP, STL_ASCII, STL_BINARY, OBJ, BREP, IGES
name	No	Human-readable identifier
priority	Yes	Importance (0-100, higher = more important)
quantity	Yes	The quantity of parts to produce
units	Yes	Model units (MM, CM, FT, IN)
referenceTransform	Yes	Transform to standard orientation

Constraints

The constraints array defines specific requirements for individual models, for example:

{
  "constraints": [
    {
      "manifestId": "550e8400-e29b-41d4-a716-446655440000",
      "type": "FIXED_ORIENTATION",
      "value": {
        "rotation": [1, 0, 0, 0, 1, 0, 0, 0, 1]
      }
    }
  ]
}

Global Constraints

The globalConstraints array defines requirements affecting all models, for example:

{
  "globalConstraints": [
    {
      "type": "MIN_PART_DISTANCE",
      "value": {
        "distance": 2.0,
        "units": "MM"
      }
    }
  ]
}

Optimization

The optimization object defines the primary optimization strategy, for example:

{
  "optimization": {
    "strategy": "MINIMIZE_HEIGHT",
    "weight": 1.0
  }
}