{
 "version": "2026-10-20",
 "license": "Dimension sheets are written by Xem Studio from the cited sources and are free to use (CC BY 4.0, attribute 'Xem Studio'). Linked files belong to their publishers under the license shown; Xem Studio does not host them. 'license_verified: false' means the license shown is from memory or the publisher's page as last read and should be confirmed at the link before commercial use.",
 "slug": "tri-clamp-horizontal-burner-shroud",
 "name": "Burner shroud for a horizontal finned 2 in hot spool",
 "kind": "hardware",
 "category": "Hardware",
 "group": "Stirling & thermoacoustic",
 "year": null,
 "question": "How do I shroud the flame round a horizontal Stirling hot end?",
 "tags": [
  "shroud",
  "burner",
  "torch",
  "tri-clamp",
  "stirling",
  "long earth society"
 ],
 "aliases": [
  "horizontal stirling burner shroud"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": true,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/tri-clamp-horizontal-burner-shroud/",
 "sheet_txt": "https://xemstudio.com/objects/tri-clamp-horizontal-burner-shroud/sheet.txt",
 "sheet": {
  "basis": "Design values; fins from the hot spool",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "A sheet shell round the fins of a lying hot spool: the flame comes up through the Ø40 inlet under the fins, is held round them by the shell and leaves by three holes on top. Its legs stand on the frame on the side away from the torch stand's foot."
  ],
  "table": {
   "columns": [
    "feature",
    "value"
   ],
   "rows": [
    [
     "shell",
     "Ø92 / Ø88"
    ],
    [
     "inlet",
     "Ø40 below the fins"
    ],
    [
     "exhaust",
     "3 × Ø16 on top"
    ]
   ]
  }
 },
 "sheet_text": "Burner shroud for a horizontal finned 2 in hot spool — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/tri-clamp-horizontal-burner-shroud/  (CC BY 4.0)\nBasis: Design values; fins from the hot spool\nCatalog version: 2026-10-20\n\nSizes: see table below\n- A sheet shell round the fins of a lying hot spool: the flame comes up through the Ø40 inlet under the fins, is held round them by the shell and leaves by three holes on top. Its legs stand on the frame on the side away from the torch stand's foot.\n\nfeature  value\nshell  Ø92 / Ø88\ninlet  Ø40 below the fins\nexhaust  3 × Ø16 on top\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Long Earth Society: Engine builds — web, video — LES site — https://longearthsociety.com/engineering/\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/tri-clamp-horizontal-burner-shroud/index.json\nAPI: https://xemstudio.com/api/geometry?object=tri-clamp-horizontal-burner-shroud\n",
 "sources": [
  {
   "publisher": "Long Earth Society",
   "title": "Engine builds",
   "url": "https://longearthsociety.com/engineering/",
   "formats": [
    "web",
    "video"
   ],
   "license": "LES site",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "tri-clamp-closed-hot-spool-bored",
  "list-tri-clamp-horizontal-gamma"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.",
 "mating": [
  {
   "feature": "lid hole",
   "exact": "Ø54.8",
   "mates": "2 in tube Ø50.8 (no contact)",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "feet holes",
   "exact": "2 × Ø4.5",
   "mates": "M4 clearance",
   "fit": "designed",
   "files": "all"
  }
 ],
 "fit_classes": {
  "press": "stays put: pin, tube, bearing or magnet held by interference. Typical FDM: hole +0.0 to +0.1 mm on diameter.",
  "slide": "assembles by hand and is held by a grub, pinch or clamp: shaft in a hub, rod in a socket, spigot in a bore. Typical FDM: +0.2 mm.",
  "run": "turns or slides in use: pin in a link, rod through a guide. Typical FDM: +0.3 mm.",
  "socket": "large sliding fit: syringe barrel, sleeve, bobbin in a bore. Typical FDM: +0.3 mm.",
  "clamp": "split part that closes on the mating part with screws: make it at size.",
  "designed": "a gap that is part of the design (piston fit option, displacer gap, air gap): do not change."
 },
 "faq": [
  {
   "q": "What burner?",
   "a": "A propane or butane torch head in the torch stand, pointing up."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "burner-shroud-2in-horizontal",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/tri-clamp-horizontal-burner-shroud/burner-shroud-2in-horizontal.step",
   "stl": "https://xemstudio.com/files/hardware/tri-clamp-horizontal-burner-shroud/burner-shroud-2in-horizontal.stl",
   "note": "horizontal burner shroud (world, base top z 8): shell Ø92 / Ø88 round the hot spool's fins, closed outer end, lid with a Ø54.8 hole, Ø40 flame inlet below, three Ø16 exhausts on top, two legs on +Y with Ø4.5 feet"
  }
 ],
 "markdown": "https://xemstudio.com/objects/tri-clamp-horizontal-burner-shroud/index.md"
}