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622Re: [PPLetterpress] Re: laser engraving

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  • Erik Desmyter
    Jun 3, 2002
      Neil Giroux wrote:
      > I have been working with a laser-equipped machine shop for some time to
      cut .50 copper matrices from digital type programs for use in a hand-casting
      mould.

      I was under the impression (CO2?) lasers could cut most metals but not
      copper because of refection problems. What kind of laser were you using?

      Erik
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