[Jewelry making - Article 00747] - [Orchid] Engraving or Carving with a flex shaft

[S . C . Versillee]

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    I've noticed several enquiries regarding engraving with a flex shaft
    so I wanted to reply with some information I hope will be useful. 

    I have found that engraving or carving with a flex shaft on metal to
    be very frustrating, though possible. Because of the usual low RPM
    associated with these motors there is a lot of "chatter", skipping
    and lines are not continuous. In carving wax though, my Foredom S is
    a very useful beast. 

    For detailing metal I found it necessary to finally take the plunge
    and buy a higher priced high speed hand piece. Mine is all metal,
    self lubricating and made by a dental supply company. It's highest
    RPM is 300,000 and though it does not hog out large amounts of metal
    like a flex shaft, it it's peerless when it comes to fine detail
    work. Because it has low torque. I am able to move smoothly (albeit,
    slowly) through hard material like metal. The only drawback to this
    tool is that it only accepts bits with a 1/16 mandrel. 

I hope this info is helpful.

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