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  1. What am I all about? What am I getting up to? How am I doing it?

    I think that I am going to like being a member of this forum for a number of reasons, the main one is that the members here seem to be "down to earth" types who do not simply roast you if you ask a question that they do not like.
    The second reason is this "blog" feature.
    However, unlike a "normal" blog, I will be using my blog as a place to document all sorts of things as they pop into my head with the hope that other members will take a look and tell ...

    Updated 10-09-2016 at 12:46 AM by Mad Aubrey

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  2. Recent silver coins with varying patina

  3. Extruder carriage

  4. Is this type of plaster appropriate for a refractory lining?

    This specific casting plaster is only a fraction of the price of plaster of paris and seems to have the same chemical composition i.e. Calcium Sulphate Hemihydrate

    http://www.gyprock.com.au/Pages/Prod...Technical.aspx

    I wanted to replicate the "Grant Thomson - King of Random foundry" (https://youtu.be/hHD10DjxM1g) and I was wondering if this plaster when mixed with sand would yield the same result as plaster of paris?
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  5. My 1st waste oil burner design (based on how a nebulizer works)

    Quote Originally Posted by joule_ian View Post
    I wanted to show off my 1st waste oil burner design. I have always been fascinated with nebulizers. My first attempt at designing a burner involved nebulizing kerosene and ducting the gas through a propane venturi. It did work but way too small and expensive to run. I figured I needed to use waste oil to bring down the cost and design a new method. I was playing around with my nebulizer with a little kerosene in it and I removed the baffle and turned on the air. The vacuum disk sucked the kerosene
    ...
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