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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Perpendicularity again. was: Adjusting Central Mirror
From: Alexandre Eremenko
Date: 2004 Oct 11, 22:21 -0500
From: Alexandre Eremenko
Date: 2004 Oct 11, 22:21 -0500
Jim, You may be right. If you have the cylinders, could you please measure their height for me? I don't want to buy them just to learn this number:-) On Mon, 11 Oct 2004, Jim Thompson wrote: > Isn't that what twin cylinders are for? I assume that by lining up their > tops as they sit on the index arm, the eye is forced into the correct angle. > I use the ones Celestaire sells:
