{
 "object": "printer-calibration-coupons",
 "license": "CC BY 4.0, Xem Studio",
 "les": "https://longearthsociety.com/engineering/",
 "files": [
  {
   "name": "hole-gauge-m3-2-8-to-3-6",
   "step": "/files/hardware/printer-calibration-coupons/hole-gauge-m3-2-8-to-3-6.step",
   "stl": "/files/hardware/printer-calibration-coupons/hole-gauge-m3-2-8-to-3-6.stl",
   "note": "hole gauge for \u00d83 pins/screws: 2.8\u20133.6 in 0.1 steps (find press, slip and clearance)"
  },
  {
   "name": "hole-gauge-m5-4-8-to-5-6",
   "step": "/files/hardware/printer-calibration-coupons/hole-gauge-m5-4-8-to-5-6.step",
   "stl": "/files/hardware/printer-calibration-coupons/hole-gauge-m5-4-8-to-5-6.stl",
   "note": "hole gauge for \u00d85 shafts: 4.8\u20135.6"
  },
  {
   "name": "hole-gauge-m8-7-8-to-8-6",
   "step": "/files/hardware/printer-calibration-coupons/hole-gauge-m8-7-8-to-8-6.step",
   "stl": "/files/hardware/printer-calibration-coupons/hole-gauge-m8-7-8-to-8-6.stl",
   "note": "hole gauge for \u00d88 shafts: 7.8\u20138.6"
  },
  {
   "name": "pin-gauge-2-8-to-3-2",
   "step": "/files/hardware/printer-calibration-coupons/pin-gauge-2-8-to-3-2.step",
   "stl": "/files/hardware/printer-calibration-coupons/pin-gauge-2-8-to-3-2.stl",
   "note": "printed pin gauge 2.8\u20133.2: which prints to a true \u00d83 hole in a bearing?"
  },
  {
   "name": "pin-gauge-4-8-to-5-2",
   "step": "/files/hardware/printer-calibration-coupons/pin-gauge-4-8-to-5-2.step",
   "stl": "/files/hardware/printer-calibration-coupons/pin-gauge-4-8-to-5-2.stl",
   "note": "printed pin gauge 4.8\u20135.2 (625 bearing bore test)"
  },
  {
   "name": "nut-trap-gauge-m3-m4",
   "step": "/files/hardware/printer-calibration-coupons/nut-trap-gauge-m3-m4.step",
   "stl": "/files/hardware/printer-calibration-coupons/nut-trap-gauge-m3-m4.stl",
   "note": "nut-trap gauge: M3 at 5.5/5.7/5.9 AF, M4 at 7.0/7.2/7.4"
  },
  {
   "name": "extrusion-tongue-gauge-6mm",
   "step": "/files/hardware/printer-calibration-coupons/extrusion-tongue-gauge-6mm.step",
   "stl": "/files/hardware/printer-calibration-coupons/extrusion-tongue-gauge-6mm.stl",
   "note": "T-slot tongue gauge: 5.6 / 5.8 / 6.0 mm tongues for a 6 mm slot"
  },
  {
   "name": "bearing-pocket-gauge-623-625-608",
   "step": "/files/hardware/printer-calibration-coupons/bearing-pocket-gauge-623-625-608.step",
   "stl": "/files/hardware/printer-calibration-coupons/bearing-pocket-gauge-623-625-608.stl",
   "note": "bearing pocket gauge: \u00d810.0/10.2/10.4 (623), \u00d816.0/16.2/16.4 (625), \u00d822.0/22.2/22.4 (608), 6 deep"
  }
 ]
}