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    Double vial horizon prototype
    From: Randall Morrow
    Date: 2012 Jan 9, 09:18 -0800

    Now that I can make my own level vials a pair of them can be combined on one plate.   Here is a prototype done on a plastic cutting board to illustrate:

       The plate would likely be a 1/4 inch mild steel and the mirror 6 inches square.   I just dropped a round one as an example.   The levels would be glued in place.     A lash-up like this is probably what the Amundsen team is using in that famous photograph recently posted.    The Freiberger is the essentially the same but with a $900 price tag.  

       PS My thanks to Frank R for fixing my picture posting troubles.    Can you review picture posting rules again?  
    I have compressed these down to less than 50 KB.

    Randall F Morrow PT
    Kern County - Bakersfield

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    File: 117756.prototype-horizon-top-view.doc
    File: 117756.prototype-horizon-side-view.doc
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