{
 "object": "marble-engine-rocker",
 "license": "CC BY 4.0, Xem Studio",
 "les": "https://longearthsociety.com/engineering/",
 "files": [
  {
   "name": "marble-engine-rocker-25x150-glass5",
   "step": "/files/hardware/marble-engine-rocker/marble-engine-rocker-25x150-glass5.step",
   "stl": "/files/hardware/marble-engine-rocker/marble-engine-rocker-25x150-glass5.stl",
   "note": "rocker: \u00d825 ring for the 25 \u00d7 150 test tube and \u00d815.40 ring for the 5 mL glass barrel on one axis 18 above the \u00d83 pivot bore, beam 216 long, lever pin (\u00d83) 45 below and 35 beside the pivot at the end of an arm reaching to y \u221272.5, 2 \u00d7 M3 tapped (\u00d82.5) grubs"
  }
 ]
}