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    Re: Navigation-L Digest - 21 Nov 2004 To 28 Nov 2004 (#2004-55)
    From: Omar Reis
    Date: 2004 Nov 29, 15:17 -0200

    John,
    
    The only way to have a more readable
    scale is to build a larger instrument.
    
    I have made a large scale, which can
    be found on the web at:
    
    www.tecepe.com.br/nav/xtant/SextantBMP.jpg
    
    this is the scale for a 514mm radius octant
    (about 20 inches). In this scale, each degree
    is 9mm wide ( 1/3"). This is what I call the
    Bowditch octant scale.
    
    The scale must be printed with 300 DPI resolution.
    Print it and check if the size is suitable for
    your vision. If it's not, we can try an even
    bigger.
    
    Omar
    
    
    ----- Original Message -----
    From: "John Kennedy" 
    Subject: Re: NAVIGATION-L Digest - 21 Nov 2004 to 28 Nov 2004 (#2004-55)
    
    
    > Omar: my eyes have been deteriorating for the past few years, but the eye
    > surgeon says I'm now going to hold my own. I don't have as much ability to
    > see fine detail as I used to have.
    >
    > Can your scale printer program be altered to produce a scale larger than
    you
    > used for your octant? I'm thinking that if I built myself an octant,
    > sextant, etc., about 50% bigger than normal, I'd actually be able to read
    > the scales when I want to.
    >
    > I've never used a sextant before and it would be fun to learn.
    
    
    

       
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