{
  "id": "city-adjustable-steel-prop",
  "type": "model",
  "title": "伸縮式の鋼製サポート支柱",
  "titleEn": "Adjustable steel support prop",
  "description": "工事中の建物や資材置場の背景に配置する伸縮式支柱。実際に開いた高さピン穴と上下板の穴、外筒・内筒、ねじ状の調整部、回転ハンドル、固定ピンと短い脱落防止鎖を造形。床・上部荷重・支保工全体、伸縮・回転は含みません。荷重・座屈・固定や施工条件を検証した実用品設計ではありません。 ゲーム・可視化向け。製造・構造設計・3Dプリント用途は未検証。 外接寸法（X×Y×Z）0.315 × 2.242 × 0.230 m、7,924三角形。単位m・Y-up、水平中央の接地用原点、最下点Y=0。部品ごとの重複UV0と単色PBR材質を収録し、画像テクスチャ・UV2・コライダー・LOD・リグ・動作は付属しません。静的表示用でUnity/VRChat実機検証は未実施。STLはm・Y-up座標の形状のみで色・材質・UV・階層を含みません。",
  "descriptionEn": "A telescopic support-prop exterior for construction interiors and storage yards, with real height-pin and plate openings, inner/outer tubes, thread-like adjustment detail, turning handle, locking pin and short captive chain. Floor, supported load, complete shoring system and motion are absent. This is not a real design validated for loading, buckling, anchorage or construction conditions. For games and visualization; not validated for manufacture, structural engineering or 3D printing. Bounding dimensions (X×Y×Z): 0.315 × 2.242 × 0.230 m; 7,924 triangles. Metres, Y-up, horizontally centered placement origin with minimum Y=0, not an articulation or wall-mount pivot. Includes overlapping component UV0 and constant-color PBR materials, with no image textures, unique UV2, colliders, LOD, rig or runtime behavior. Static visualization only; Unity/VRChat editor and runtime tests have not been performed. STL uses metre-valued Y-up coordinates and contains geometry only, without color, materials, UVs or hierarchy.",
  "category": "urban",
  "tags": [
    "city",
    "street",
    "original",
    "construction",
    "prop",
    "shoring",
    "支柱"
  ],
  "author": "Xenoah",
  "license": "CC-BY-4.0",
  "version": "1.0.0",
  "status": "public",
  "created": "2026-10-14",
  "updated": "2026-10-14",
  "thumbnail": "https://raw.githubusercontent.com/Xenoah/meshcopia/19446e7a974ccf0130721a39654cbf386a627b7d/content/assets/city-adjustable-steel-prop/preview.png",
  "preview": "city-adjustable-steel-prop.glb",
  "unit": "m",
  "upAxis": "Y",
  "triangles": 7924,
  "dimensions": [
    0.315,
    2.242,
    0.23
  ],
  "uv": "Per-component primitive or automatically unwrapped UVs. Overlapping between components; not a packed unique lightmap atlas. Solid-color PBR materials; no external textures. STL has no colors or UVs.",
  "provenance": {
    "method": "Original AI-agent-authored procedural city geometry",
    "tool": "Blender 4.3.2; Meshcopia original city expansion generator 1.0",
    "rights": "Original geometry and material design created for Xenoah Meshcopia under the owner request for CC-BY-4.0 publication. No third-party meshes, scans, brands, logos or font files.",
    "generatorUrl": "https://github.com/Xenoah/meshcopia/blob/main/scripts/city_expansion/frozen/batch-023/scripts/city_expansion/construction_support.py",
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    "sourceHelpersSha256": "99ea76b4c3073b3ec2cfdf732e987c7977bfe5efc986b4a077df8db35a6f9d15",
    "alternateFormat": "STL triangulated from the exact reimported GLB, metre-valued Y-up coordinates. No printability or manufacture validation.",
    "stlSha256": "9673f6ec76c1c70a88a60d9c081ccc6c9ade0b913c5eeca0f602c4c04b8eb9b5"
  },
  "usages": [
    {
      "relationship": "original",
      "project": "Meshcopia",
      "sourceUrl": "https://github.com/Xenoah/meshcopia",
      "sourcePaths": [
        "scripts/city_expansion/frozen/batch-023/scripts/city_expansion/construction_support.py",
        "scripts/city_expansion/frozen/batch-023/scripts/city_expansion/common.py"
      ],
      "selectors": [
        "city-adjustable-steel-prop"
      ],
      "context": "Original city asset created for this library. No external deployment or reuse claimed."
    }
  ],
  "pageUrl": "https://xenoah.github.io/meshcopia/assets/city-adjustable-steel-prop/",
  "manifestUrl": "https://xenoah.github.io/meshcopia/api/assets/city-adjustable-steel-prop.json",
  "attribution": "Adjustable steel support prop by Xenoah / Meshcopia\nhttps://xenoah.github.io/meshcopia/assets/city-adjustable-steel-prop/\nCC BY 4.0 — https://creativecommons.org/licenses/by/4.0/\nChanges: none. If modified, replace this line with a description of your changes.",
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        "filename": "LICENSE.txt",
        "sha256": "39744dfe4cc675d33d15616925703e89bb869bf9d929c894d9e31e0d0e55a8a2",
        "text": "Adjustable steel support prop by Xenoah / Meshcopia\nCopyright (c) 2026 Xenoah\nCC BY 4.0: https://creativecommons.org/licenses/by/4.0/\nSource: https://xenoah.github.io/meshcopia/assets/city-adjustable-steel-prop/\nProvided as-is, without warranties (license Section 5).\nChanges: none.\nAdditional changes: Converted unchanged source GLB geometry to FBX, with documented compatible material/texture derivatives.\n"
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}