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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Buy or build a modern Bygrave slide rule
From: Gary LaPook
Date: 2019 Oct 15, 10:37 -0700
From: Gary LaPook
Date: 2019 Oct 15, 10:37 -0700
Make one yourself, it couldn't be simpler! You print out one scale on a piece of paper and the other scale on a clear plastic sheet. You could have these printed at your local copy store. You can also buy the plastic sheets to use in your own printer. Here are the instructions:
