[Jewelry making - Article 00699] - Re: [Orchid] Machining graphite block

[Jeffrey Everett]

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>     Steve: I have been using grafite blocks for about 20 years for
>     ingot molds for sterling silver. I drilled a series of holes in the
>     blocks with a 3/8 "  Di.steel drill bit and some os a 1/2" di.
>     about 1" and ` 1/4" deep/ It works great for my Thermidor I 3
>     casting machine. yours Billy S. Bates 

    Heh, it's good to hear of someone else (besides me) who uses a
    Thermotrol casting machine. Mine is about 35 years old, it's mostly
    manual, not one of the newer microchip designs, and takes up to a
    5"x7" flask. I only use it when necessary because most of my casting
    is done on a vacuum machine. 

Jeffrey Everett


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