{
 "object": "tri-clamp-rd-piston",
 "license": "CC BY 4.0, Xem Studio",
 "les": "https://longearthsociety.com/engineering/",
 "files": [
  {
   "name": "rd-piston-2in",
   "step": "/files/hardware/tri-clamp-rd-piston/rd-piston-2in.step",
   "stl": "/files/hardware/tri-clamp-rd-piston/rd-piston-2in.stl",
   "note": "rolling-diaphragm piston Ø33.274 × 22: crown 6 with a 1/16 in edge radius, Ø3 gland bore through the crown, 3 × M3 tapped (Ø2.5) × 5.5 on Ø18, Ø14 boss with a Ø5 tube socket 8..20 and an M3 grub (Ø2.5) at 18 reached through a Ø3.4 hole in the 2 mm skirt"
  },
  {
   "name": "rd-retainer-26-blind",
   "step": "/files/hardware/tri-clamp-rd-piston/rd-retainer-26-blind.step",
   "stl": "/files/hardware/tri-clamp-rd-piston/rd-retainer-26-blind.stl",
   "note": "head retainer Ø26 × 2, 0.5 radius on the clamping edge, 3 × Ø3.4 on Ø18, no centre hole"
  },
  {
   "name": "rd-retainer-26-gland3",
   "step": "/files/hardware/tri-clamp-rd-piston/rd-retainer-26-gland3.step",
   "stl": "/files/hardware/tri-clamp-rd-piston/rd-retainer-26-gland3.stl",
   "note": "head retainer Ø26 × 2 with an Ø3 gland bore on centre (the beta's displacer rod runs through it)"
  }
 ]
}