{
  "title": "Gas Cylinder",
  "description": "Steel gas bottle with a brass valve under a cage guard: one revolve for the shell, a radial array of posts carrying a hollow ring over the valve, and a handwheel that turns. The first model in the kit where a lathe carries an array.",
  "category": "Tools",
  "tags": [
    "contemporary",
    "tools",
    "industrial",
    "procedural"
  ],
  "controls": {
    "height": {
      "type": "number",
      "label": "Height",
      "min": 0.4,
      "max": 1.3,
      "step": 0.01,
      "unit": "m"
    },
    "radius": {
      "type": "number",
      "label": "Shell radius",
      "min": 0.05,
      "max": 0.2,
      "step": 0.002,
      "unit": "m"
    },
    "posts": {
      "type": "number",
      "label": "Guard posts",
      "min": 3,
      "max": 8,
      "step": 1
    },
    "lobes": {
      "type": "number",
      "label": "Handwheel lobes",
      "min": 5,
      "max": 12,
      "step": 1
    },
    "segments": {
      "type": "number",
      "label": "Sides",
      "min": 12,
      "max": 64,
      "step": 1
    },
    "seed": {
      "type": "number",
      "label": "Variation seed",
      "min": 1,
      "max": 64,
      "step": 1
    }
  },
  "materialSlots": [
    "steelPainted",
    "aluminium",
    "brass"
  ],
  "parts": [
    "body",
    "valve",
    "wheel",
    "cage"
  ]
}