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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: PC hard drive platters as artificial horizon
From: Noell Wilson
Date: 2023 Dec 28, 16:38 -0800
From: Noell Wilson
Date: 2023 Dec 28, 16:38 -0800
Jim,
I mentioned some precision level vials years ago and they are still available at:
https://www.ebay.com/itm/183780950395?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=J1eteW81QvG&sssrc=4429486&ssuid=JAFcAZnkQ-C&var=&widget_ver=artemis&media=EMAIL%0A%0ASent%20from%20my%20iPad
For $5.95 plus tax in the US. They are in the accuracy range of a Starrett 95 machinists level. I believe the stated accuracy of the Starrett 95 is that which moves the bubble one division. The discernible movement of the bubble is much, much more precise.
A three point adjustable platform, mirror, and two levels at 90 degrees is pretty much spill proof.
Regards, Noell
