{
 "object": "stirling-linkage-fittings",
 "license": "CC BY 4.0, Xem Studio",
 "les": "https://longearthsociety.com/engineering/",
 "files": [
  {
   "name": "rod-clevis-3mm",
   "step": "/files/hardware/stirling-linkage-fittings/rod-clevis-3mm.step",
   "stl": "/files/hardware/stirling-linkage-fittings/rod-clevis-3mm.stl",
   "note": "clevis for a \u00d83 displacer or piston rod: \u00d83 socket 12 deep with a tapped M3 grub, 5.2 mm gap, \u00d83 pin: takes a con-rod's 623 end"
  },
  {
   "name": "rod-clevis-5mm-tube",
   "step": "/files/hardware/stirling-linkage-fittings/rod-clevis-5mm-tube.step",
   "stl": "/files/hardware/stirling-linkage-fittings/rod-clevis-5mm-tube.stl",
   "note": "clevis for the 5 mm tube piston rod: \u00d85 socket with a tapped M3 grub, 5.2 mm gap, \u00d83 pin"
  },
  {
   "name": "shaft-adapter-5-to-8",
   "step": "/files/hardware/stirling-linkage-fittings/shaft-adapter-5-to-8.step",
   "stl": "/files/hardware/stirling-linkage-fittings/shaft-adapter-5-to-8.stl",
   "note": "\u00d85 \u2192 \u00d88 shaft adapter \u00d7 20 with two M3 grubs: puts a \u00d88-bore flywheel (\u00d880\u2013150) on a \u00d85 crankshaft"
  },
  {
   "name": "crank-stand-625-h40",
   "step": "/files/hardware/stirling-linkage-fittings/crank-stand-625-h40.step",
   "stl": "/files/hardware/stirling-linkage-fittings/crank-stand-625-h40.stl",
   "note": "crank stand, \u00d85 shaft axis 40 mm up, \u00d816 pocket for a 625 bearing (H7/m6), slotted feet 2 \u00d7 M3 at 42 mm (print two; fits the gamma base plate slots)"
  },
  {
   "name": "crank-stand-625-h60",
   "step": "/files/hardware/stirling-linkage-fittings/crank-stand-625-h60.step",
   "stl": "/files/hardware/stirling-linkage-fittings/crank-stand-625-h60.stl",
   "note": "crank stand, \u00d85 shaft axis 60 mm up, \u00d816 pocket for a 625 bearing (H7/m6), slotted feet 2 \u00d7 M3 at 42 mm (print two; fits the gamma base plate slots)"
  },
  {
   "name": "crank-disc-b3-stroke10",
   "step": "/files/hardware/stirling-linkage-fittings/crank-disc-b3-stroke10.step",
   "stl": "/files/hardware/stirling-linkage-fittings/crank-disc-b3-stroke10.stl",
   "note": "crank disc \u00d830 for a \u00d83 crankshaft (the crank head's 623 towers), pin at 5.0 mm (10 mm stroke), M3 grub"
  },
  {
   "name": "crank-disc-b3-stroke15",
   "step": "/files/hardware/stirling-linkage-fittings/crank-disc-b3-stroke15.step",
   "stl": "/files/hardware/stirling-linkage-fittings/crank-disc-b3-stroke15.stl",
   "note": "crank disc \u00d830 for a \u00d83 crankshaft (the crank head's 623 towers), pin at 7.5 mm (15 mm stroke), M3 grub"
  },
  {
   "name": "crank-disc-b3-stroke20",
   "step": "/files/hardware/stirling-linkage-fittings/crank-disc-b3-stroke20.step",
   "stl": "/files/hardware/stirling-linkage-fittings/crank-disc-b3-stroke20.stl",
   "note": "crank disc \u00d830 for a \u00d83 crankshaft (the crank head's 623 towers), pin at 10.0 mm (20 mm stroke), M3 grub"
  },
  {
   "name": "rhombic-frame-head-1.5in",
   "step": "/files/hardware/stirling-linkage-fittings/rhombic-frame-head-1.5in.step",
   "stl": "/files/hardware/stirling-linkage-fittings/rhombic-frame-head-1.5in.stl",
   "note": "1.5 in rhombic frame head: ISO 2852 cap face, pedestal, two uprights 24 mm apart with 2 \u00d7 M3 at \u00b120 mm, 55 mm above the face, matching the rhombic gear frame plates' mounting holes; gear axes land 70 mm above the face"
  },
  {
   "name": "rhombic-frame-head-2in",
   "step": "/files/hardware/stirling-linkage-fittings/rhombic-frame-head-2in.step",
   "stl": "/files/hardware/stirling-linkage-fittings/rhombic-frame-head-2in.stl",
   "note": "2 in rhombic frame head: ISO 2852 cap face, pedestal, two uprights 24 mm apart with 2 \u00d7 M3 at \u00b120 mm, 55 mm above the face, matching the rhombic gear frame plates' mounting holes; gear axes land 70 mm above the face"
  },
  {
   "name": "rhombic-frame-head-3in",
   "step": "/files/hardware/stirling-linkage-fittings/rhombic-frame-head-3in.step",
   "stl": "/files/hardware/stirling-linkage-fittings/rhombic-frame-head-3in.stl",
   "note": "3 in rhombic frame head: ISO 2852 cap face, pedestal, two uprights 24 mm apart with 2 \u00d7 M3 at \u00b120 mm, 55 mm above the face, matching the rhombic gear frame plates' mounting holes; gear axes land 70 mm above the face"
  }
 ]
}