this post was submitted on 22 Aug 2023
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Ah cool, didn't notice those. Cheers
“Caliper jaws for inside measurement—I thought of that. Turned out it already existed, but I arrived at it independently."
I think the guy was actually referring to something a bit different, that is having a second number scale on the caliper that is offset by the width of the first jaw, so you can use the outside jaws for measuring inside dimensions. I don't think that would work, however.
The second scale sounds like a good Idea till you mess up everything due to using the wrong one. I once had a Spirit Level that was for plumbers and had a Second bubble-level built in that was even when the Level was tiltet to about 1.5 degree, great for waste-lines and gutters. Now everything in my House ist tilted by 1.5 degree except the plumbing and gutters.