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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

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    Re: Traditional navigation by slide rule
    From: Paul Dolkas
    Date: 2016 Oct 28, 09:57 -0700

    I wouldn’t try to make one – Google “plano convex plastic lens” and you will get a ton of places where you could buy them off the shelf. Only question is what shape & how much do you want to spend? Then I would 3-D print the holder.

     

    Paul Dolkas

     

    From: NavList@fer3.com [mailto:NavList@fer3.com] On Behalf Of Bob Goethe
    Sent: Wednesday, October 26, 2016 9:39 AM
    To: paul{at}dolkas.net
    Subject: [NavList] Re: Traditional navigation by slide rule

     

    Up to now, I have assumed that the cursor would be made up from a microscope slide.  Going with a semi-convex lens is an intriguing suggestion.  How would one go about fabricating such a thing?

    Bob

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