[Jewelry making - Article 00560] - Re: [Orchid] Roller Printing Text

[Peter W . Rowe]

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>     These measures would undoubtedly protect the rollers. They would
>     also render the whole process moot by absorbing the force that
>     might otherwise accomplish the printing! Sandwiching the die and
>     the receiving metal (silver or gold) between a couple of sheets of
>     brass should do the job. 

    I have a simple method. My roll print dies (usually an "engine
    turned", or guilloche engraved pattern) are made of ordinary starret
    flat ground steel sheet, which I give a surface finish about the
    same fineness or finer, as the finish on my rolls, on it's back side
    (just a bit of sanding is all that's needed). The dies are not
    hardened. They are the same width as the rolls themselves. As such,
    the dies present no greater stress on the rolls than using them
    conventionally. After one or two uses, the dies curl to a curve about
    twice the curvature of the rolls surface, making them quite easy to
    insert slightly into the properly spaced rolls, and then insert the
    edge of the silver or gold to be roll printed. Generally that piece
    is smaller than the die. It does not need protection for the rolls on
    it's back side any more than it would need if it was just being
    rolled down without producing a roll print texture. The main key to
    this is that the roll print die is as wide as the roll, and thick
    enough so any texture on the printing side won't affect the roll
    driving it. The only reason I'd use a protective layer on the other
    side of the gold or silver is if I'd already put some texture on that
    side, and wished it not be to totally mashed when printing the second
    side (though it's hard to prevent some damage.) 

Peter

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