{
 "object": "thermoacoustic-stack",
 "license": "CC BY 4.0, Xem Studio",
 "les": "https://longearthsociety.com/engineering/",
 "files": [
  {
   "name": "stack-honeycomb-1.5in-40-c1.5",
   "step": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-honeycomb-1.5in-40-c1.5.step",
   "stl": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-honeycomb-1.5in-40-c1.5.stl",
   "note": "honeycomb stack Ø34.8 × 40 (the 1.5 in spool bore, exact): 1.5 mm hexagonal cells, 0.4 mm walls"
  },
  {
   "name": "stack-spiral-1.5in-30-g1.0",
   "step": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-spiral-1.5in-30-g1.0.step",
   "stl": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-spiral-1.5in-30-g1.0.stl",
   "note": "spiral stack Ø34.8 × 30 (the 1.5 in spool bore, exact): one 0.4 mm wall wound with a 1.0 mm gas gap"
  },
  {
   "name": "stack-spiral-1.5in-40-g1.0",
   "step": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-spiral-1.5in-40-g1.0.step",
   "stl": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-spiral-1.5in-40-g1.0.stl",
   "note": "spiral stack Ø34.8 × 40 (the 1.5 in spool bore, exact): one 0.4 mm wall wound with a 1.0 mm gas gap"
  },
  {
   "name": "stack-spiral-1.5in-50-g1.0",
   "step": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-spiral-1.5in-50-g1.0.step",
   "stl": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-spiral-1.5in-50-g1.0.stl",
   "note": "spiral stack Ø34.8 × 50 (the 1.5 in spool bore, exact): one 0.4 mm wall wound with a 1.0 mm gas gap"
  },
  {
   "name": "stack-honeycomb-2in-40-c1.5",
   "step": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-honeycomb-2in-40-c1.5.step",
   "stl": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-honeycomb-2in-40-c1.5.stl",
   "note": "honeycomb stack Ø47.5 × 40 (the 2 in spool bore, exact): 1.5 mm hexagonal cells, 0.4 mm walls"
  },
  {
   "name": "stack-spiral-2in-30-g1.0",
   "step": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-spiral-2in-30-g1.0.step",
   "stl": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-spiral-2in-30-g1.0.stl",
   "note": "spiral stack Ø47.5 × 30 (the 2 in spool bore, exact): one 0.4 mm wall wound with a 1.0 mm gas gap"
  },
  {
   "name": "stack-spiral-2in-40-g1.0",
   "step": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-spiral-2in-40-g1.0.step",
   "stl": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-spiral-2in-40-g1.0.stl",
   "note": "spiral stack Ø47.5 × 40 (the 2 in spool bore, exact): one 0.4 mm wall wound with a 1.0 mm gas gap"
  },
  {
   "name": "stack-spiral-2in-50-g1.0",
   "step": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-spiral-2in-50-g1.0.step",
   "stl": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-spiral-2in-50-g1.0.stl",
   "note": "spiral stack Ø47.5 × 50 (the 2 in spool bore, exact): one 0.4 mm wall wound with a 1.0 mm gas gap"
  },
  {
   "name": "stack-spiral-3in-30-g1.0",
   "step": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-spiral-3in-30-g1.0.step",
   "stl": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-spiral-3in-30-g1.0.stl",
   "note": "spiral stack Ø72.9 × 30 (the 3 in spool bore, exact): one 0.4 mm wall wound with a 1.0 mm gas gap"
  },
  {
   "name": "stack-spiral-3in-40-g1.0",
   "step": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-spiral-3in-40-g1.0.step",
   "stl": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-spiral-3in-40-g1.0.stl",
   "note": "spiral stack Ø72.9 × 40 (the 3 in spool bore, exact): one 0.4 mm wall wound with a 1.0 mm gas gap"
  },
  {
   "name": "stack-spiral-3in-50-g1.0",
   "step": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-spiral-3in-50-g1.0.step",
   "stl": "/files/hardware/thermoacoustic-stacks-and-resonators/stack-spiral-3in-50-g1.0.stl",
   "note": "spiral stack Ø72.9 × 50 (the 3 in spool bore, exact): one 0.4 mm wall wound with a 1.0 mm gas gap"
  }
 ]
}