foundry

  1. maxime.levesque

    What's the max crucible size I can fit in a smelter made out of a used 30 lb propane tank ?

    I want to make a smelting furnace for cast iron, I'm thinking of using a used 30 lb propane thank (12.5" diameter x 24" height) for the outer shell of the furnace. How thick of an insulation liner does it require ? I'm thinking this 7" diameter crucible is probably the max you could fit in...
  2. pontiac428

    Making a massive gear from scrapped zipper tabs and bottlecaps in Pakistan

    Okay, so this is a YouTube video of some fascinating work being done to produce a fairly large gear under some very austere conditions. I just spent the last half hour with my mouth hanging open and having trouble blinking in awe of this 3rd world capital undertaking. The science of health...
  3. X

    Cast Iron Quality in my Foundry (From Brake Rotors)

    Hello everyone, First time poster here. This is a weird question, but I am really curious as to what is going on. I hope this is the appropriate place to post. I don't know who else to ask! I have a home foundry, from which I do mostly iron castings (at least right now). Recently I melted...
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