{
 "object": "tri-clamp-crank-head",
 "license": "CC BY 4.0, Xem Studio",
 "les": "https://longearthsociety.com/engineering/",
 "files": [
  {
   "name": "head-crank-1.5in",
   "step": "/files/hardware/tri-clamp-displacers-and-heads/head-crank-1.5in.step",
   "stl": "/files/hardware/tri-clamp-displacers-and-heads/head-crank-1.5in.stl",
   "note": "1.5 in ISO 2852 cap: clearance-seal rod gland (Ø3 bore straight through the cap and its Ø18 boss, 13.4 mm long, for the Ø3 rod; no O-ring) and two 623 bearing towers for a Ø3 crankshaft 24 mm above the cap"
  },
  {
   "name": "head-crank-2in",
   "step": "/files/hardware/tri-clamp-displacers-and-heads/head-crank-2in.step",
   "stl": "/files/hardware/tri-clamp-displacers-and-heads/head-crank-2in.stl",
   "note": "2 in ISO 2852 cap: clearance-seal rod gland (Ø3 bore straight through the cap and its Ø18 boss, 13.4 mm long, for the Ø3 rod; no O-ring) and two 623 bearing towers for a Ø3 crankshaft 24 mm above the cap"
  },
  {
   "name": "head-crank-3in",
   "step": "/files/hardware/tri-clamp-displacers-and-heads/head-crank-3in.step",
   "stl": "/files/hardware/tri-clamp-displacers-and-heads/head-crank-3in.stl",
   "note": "3 in ISO 2852 cap: clearance-seal rod gland (Ø3 bore straight through the cap and its Ø18 boss, 13.4 mm long, for the Ø3 rod; no O-ring) and two 623 bearing towers for a Ø3 crankshaft 24 mm above the cap"
  }
 ]
}