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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Home made FSM for AH or idx-mirror
From: David Pike
Date: 2019 Sep 29, 13:16 -0700
From: David Pike
Date: 2019 Sep 29, 13:16 -0700
I’m afraid all I did for my plywood sextant was buy a nice looking mirror tile and cut two squares out of the centre, one for the index and one for the horizon mirror. I masked off half of the horizon mirror and dropped it into ferric chloride solution and washed off once the backing had disolved. Then I went into a welding supplier and tried a few pieces of shade until I got one that looked about right, which I cut into three squares. Only a toy really, but the results were quite respectable. I should have taken it to Littlehampton with me to compare with the Mates against a real horizon. You can always blame the AH working inland. DaveP
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