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  1. Replies
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    yes, But... There is a weird legal limbo I...

    yes, But... There is a weird legal limbo I cannot wrap my mind around, and I just dont care, I loose money making plaques so I refuse to let it dictate to me. I will sell to my friends, and do...
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    I'm NOT in business, the City/county refused to...

    I'm NOT in business, the City/county refused to issue me a business license... so I'm a hobbiest
  3. Thread: Flat Plate Casting

    by HT1
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    6,214

    I'm sorry I cannot find it but one of the old...

    I'm sorry I cannot find it but one of the old Lindsay books, probably one of the patternmaking books had an entire chapter on making cast iron stoves.. Sadly I cannot find my copy which is pretty...
  4. pour it with the top of the U upward so the thick...

    pour it with the top of the U upward so the thick sections are at the bottom, preferably by bottom gating both of them. then your concern will not be shrinkage, but getting the center of the U to...
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    http://www.levity.com/alchemy/ Here you go ...

    http://www.levity.com/alchemy/

    Here you go


    V/r HT1


    P.S. Cadmium is really dangerous
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    scrap yards in Fl cannot sale to the public.. if...

    scrap yards in Fl cannot sale to the public.. if they do they fall under the pawn dealer licence and have to hold their material for 30 days.it's a matter of a strick business license problem caused...
  7. You need to read up on alchemy, you are asking...

    You need to read up on alchemy, you are asking for the impossible

    V/r HT1
  8. the only way to color stainless as you are asking...

    the only way to color stainless as you are asking is to Electroplate it

    http://www.russamer.com/

    And it may contain Some Precious metal, it will not be cheap (mostly because of environmental...
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    no??? They are public, just click the link in my...

    no??? They are public, just click the link in my signature. no need to actually sign in... unless facebook has gotten more demanding

    anyhow here is the pic mentioned
    ...
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    The OP is quoting one of the "RULES OF THUMB" ...

    The OP is quoting one of the "RULES OF THUMB" that often has to be ignored to create a casting. the oxide layer and all that is truth, there is also a great likely hood of the leading edge of a...
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    I used 3/8 rebar V/r HT1

    I used 3/8 rebar
    V/r HT1
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    it is a cast form of Cast Fe created by a very...

    it is a cast form of Cast Fe created by a very special inoculation. it cannot be welded at ALL.. don't try it will be ruined. it's most common application is pipe, that is why it has that rubber...
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    you will need reinforcement, or the lid will...

    you will need reinforcement, or the lid will crack and collapse .

    V/r HT1
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    i did a quick look through everyone please...

    i did a quick look through everyone please remember this is for Ductile Iron, not regular cast Fe and certainly not Brass or Aluminium


    V/r HT1
  15. Thread: Crucible Types

    by HT1
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    +1 I killed 4 steel crucibles doing brass before...

    +1 I killed 4 steel crucibles doing brass before I stopped, including one made from an old fire extinguisher that I though would be bullet proof... buy real crucibles if you are going to be serious...
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    that shank will fail with brass, did you see the...

    that shank will fail with brass, did you see the 2 ends pinch and the center droop when they lifted aluminum, it looks like the crucible ring was made out of 1/8 flat bar:-(

    V/r HT1
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    I get $150/ hour for industrial consulting... ...

    I get $150/ hour for industrial consulting... But I did this Pro Gratis :-)


    V/r HT1
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    i would turn the mold on it's side and pour it...

    i would turn the mold on it's side and pour it standing up... you could also increase the depth of your cope to increase the head pressure... but you need more head pressure. putting it on the side...
  19. I doubt 100 Lbs will be enough petrobond, your...

    I doubt 100 Lbs will be enough petrobond, your mold will need to be in the 16 X 16 area for you to have any change of casting it. with cope and drag you are looking at closer to 200 LBS of petrobond...
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    in the first picture is the area you circled the...

    in the first picture is the area you circled the top of the riser??? if so, the small penetrant spots to the right are gas. if not, you have some other serious issue, probably with your sand
    ...
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    I'm not seeing 100% sound, I'm seeing porosity...

    I'm not seeing 100% sound, I'm seeing porosity which means your metal was gassy. Gassy metal will keep risers from feeding .. actually there is nothing to feed since the gas fills the space that...
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    IT's not the cast aluminum is worth less cast...

    IT's not the cast aluminum is worth less cast aluminum is worth more then extrusion, it's that you made ingots, and no one trusts you not to have put lead or zinc in it to increase the weight...
    ...
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    real foundries will have a sand floor covered...

    real foundries will have a sand floor covered with grating most of the time, or an all fire brick floor, but it still has to be kept dry.
    My shipboard foundry had firebrick with a 1/4 inch steel...
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    http://www.haycreek.org/joanna_furnace.htm ...

    http://www.haycreek.org/joanna_furnace.htm Joanna Furnace is a historic treasure. I would expect them to stick with those roots. There is nothing wrong with 3D printing if you have the skill, ...
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    I really have to wonder why you are not using...

    I really have to wonder why you are not using traditional pattern making methods. That is a very simple pattern, it is only 2D, you could even go to...
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