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    Re: Trombone Kamal Prototype
    From: Greg Rudzinski
    Date: 2009 Jun 5, 08:30 -0700

    Well placed masking tape would be good to set the fine line reference
    spacing. Spray paint the glass then remove the tape. Just like a
    stencil. A stencil would be practical for mass production purposes.
    On Jun 5, 8:16�am, Greg Rudzinski  wrote:
    > Andres,
    > � � �Welding glass will work to make the Trombone Kamal but you will
    > need to precisely paint white reference lines onto glass to get a good
    > visual.
    > Greg
    > On Jun 5, 12:38�am, "Andres Ruiz"  wrote:
    > > Very interesting Greg,
    > > It may be use a welding glass filter for the kamal, I use it for my bris 
    sextant. For security, to protect our eyes.
    > > A document about the accuracy of the kam�l can be found 
    > > Andr�s Ruiz
    > > Navigational Algorithmshttp://www.geocities.com/andresruizgonzalez
    > > �filtsold.jpg
    > > 11KViewDownload
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