{
 "object": "rolling-diaphragm-top-hat",
 "license": "CC BY 4.0, Xem Studio",
 "les": "https://longearthsociety.com/engineering/",
 "files": [
  {
   "name": "rd-diaphragm-1.50-h1.50",
   "step": "/files/hardware/rolling-diaphragm-top-hat/rd-diaphragm-1.50-h1.50.step",
   "stl": "/files/hardware/rolling-diaphragm-top-hat/rd-diaphragm-1.50-h1.50.stl",
   "note": "top-hat rolling diaphragm, 1.50 in bore (Ø38.10) × 1.31 in piston (Ø33.27) × 1.50 in high: flat flange Ø63.5 × 0.51, sidewall 0.43, Ø6 centre hole and 3 × Ø3.4 on Ø18 in the head; drawn installed in the 2 in power head at mid-stroke (head 15.34 below the flange, convolution 24.96 below it)"
  }
 ]
}