{
 "object": "encoder-disc",
 "license": "CC BY 4.0, Xem Studio",
 "les": "https://longearthsociety.com/engineering/",
 "files": [
  {
   "name": "encoder-disc-30-slots-60mm",
   "step": "/files/hardware/instrument-mounts/encoder-disc-30-slots-60mm.step",
   "stl": "/files/hardware/instrument-mounts/encoder-disc-30-slots-60mm.stl",
   "note": "optical encoder disc Ø60 × 1.5, 30 slots 2 wide × 6 radial on a 48 mm circle, Ø5 bore (for an IR slot sensor)"
  }
 ]
}