[Jewelry making - Article 00139] - Re: [Orchid] Inkwell lid

[Kevin]

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    Margery, any engineering shop should be able to do this for you,
    cutting threads is so fundamental in lathe work.  They'll want to
    know what threadform and pitch you want..... well, you'd best discuss
    it with them, but for something soft like silver you'd want a coarse
    thread rather than something fine, and perhaps the coarse threads
    normally used for cast-iron would be appropriate.  Might be a pricey
    operation, especially if they have to make up a soft faced fixture to
    hold the silver without marking it.  Since you're asking for help I
    assume there's no home machinist that you know of? 

    But wait, there's another way, which may be more appropriate for a
    hand crafted piece.  In his "Jewellery Techniques" I'm sure that Oppi
    Untrach describes handmade threads.  You wind round wire around the
    male part and solder in place, to make the thread on that piece. 
    Then wind a separate length on top, lying in the grooves, carefully
    remove it by unscrewing, and solder it into the female portion. 
    Never tried it myself though. 

    Is this to be a travelling inkwell?  Seems to me that desktop models
    usually have a hinged lid. 

Kevin  (NW England, UK)

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