{
 "object": "tri-clamp-crank-frame",
 "license": "CC BY 4.0, Xem Studio",
 "les": "https://longearthsociety.com/engineering/",
 "files": [
  {
   "name": "crank-frame-1.5in",
   "step": "/files/hardware/tri-clamp-power-pistons/crank-frame-1.5in.step",
   "stl": "/files/hardware/tri-clamp-power-pistons/crank-frame-1.5in.stl",
   "note": "1.5 in crank frame: ISO 2852 cap face (clamps to the spool with a stock clamp), Ø21 con-rod window, two towers with 608 pockets for a Ø8 crankshaft 32 mm above the face, 21 mm between towers"
  },
  {
   "name": "crank-frame-2in",
   "step": "/files/hardware/tri-clamp-power-pistons/crank-frame-2in.step",
   "stl": "/files/hardware/tri-clamp-power-pistons/crank-frame-2in.stl",
   "note": "2 in crank frame: ISO 2852 cap face (clamps to the spool with a stock clamp), Ø28 con-rod window, two towers with 608 pockets for a Ø8 crankshaft 34 mm above the face, 21 mm between towers"
  },
  {
   "name": "crank-frame-3in",
   "step": "/files/hardware/tri-clamp-power-pistons/crank-frame-3in.step",
   "stl": "/files/hardware/tri-clamp-power-pistons/crank-frame-3in.stl",
   "note": "3 in crank frame: ISO 2852 cap face (clamps to the spool with a stock clamp), Ø44 con-rod window, two towers with 608 pockets for a Ø8 crankshaft 40 mm above the face, 21 mm between towers"
  }
 ]
}