[Jewelry making - Article 00423] - Re: [Orchid] Buying a lathe

[John Burgess]

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    G'day  Since there have been a few notes about the subject, I
    thought I might put in a cents-worth. Firstly the act of using a
    lathe is NOT  "latheing" but 'turning'. Wood turning, plastic, metal
    turning etc.   

    In British countries, a person earning a living at it  (a
    professional) is usually a fitter and turner. 

    My experience is that there some very important aspects of turning,
    One is speed. The general rule is that the softer the material, the
    higher the turning speed.  Thus wood needs a much faster speed than
    say, steel. A most important item is the cutting tool. A differently
    sharpened tool is used for each material; the angle of the tool to
    the work is only one necessity. The shape of the cutting edge is
    terribly important too, to get a good clean finish on the work. The
    hardness and temper of the tool is also important. You cannot learn
    the best use of a lathe from books, especially tool sharpening. You
    must go to a professional and ask to be shown how and allowed to
    repeat the demonstration in front of the professional. It's trickier
    than it looks, believe me, and there is much to learn. 

    By the way; this sharpening comment applies to a twist drill bit
    too. 

Cheers for now,
JohnB of Mapua, Nelson NZ

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