AD-1876 Oxygen Regulator

thingiverse

AD-1876 Oxygen Regulator as seen on the Ghostbusters Ecto 1 and Ecto 1A. Worked this model up as best I could through extensive measurement of tons of pictures of these things. Can't quite get my hands on the real deal, but I've had people that own them send me pictures & tape measurements. See the pictures to see how you assemble the exhaust plate. Stickers are made by user FANNSTAR on Etsy: https://www.etsy.com/shop/FANNSTAR Here's McMaster part numbers for the fittings: Gauge to Body: 4464K261 Barbed Fitting: 2838N150 Body Inlet (Bottom - To Tank): 5485K320 The little screws are PN: 91783A079. Install these in the plastic and paint over them when you basecoat your regulator. If the holes didn't come out quite right, use a #2-56 drill/tap kit to clear the holes and tap them. Goes fast with a power drill, since this is just plastic. The gauge is a Winters PEM1422, which should be about $4.50 on Amazon. Don't pay more than that, for some reason Amazon likes to list the $10 one first, you don't want that one. I recommend printing these in PETG for heat resistance, and tapping the gas port holes before installing the fittings (with CA glue or epoxy). You'll need a 1/4 NPT and 3/8 NPT tap. You can force fittings in pretty well, too, if you spin them fast enough to heat seat them.