{
 "object": "reversing-groove-drum-30x90-p30",
 "license": "Xem Studio Design License (https://xemstudio.com/license/), Xem Studio",
 "files": [
  {
   "name": "reversing-groove-drum-30x90",
   "step": "/files/hardware/reversing-groove-drum-30x90-p30/reversing-groove-drum-30x90.step",
   "stl": "/files/hardware/reversing-groove-drum-30x90-p30/reversing-groove-drum-30x90.stl",
   "note": "drum, axis Z, grooves z 15..75, both start at angle 0"
  }
 ]
}