How to make and use an A frame for plotting a contour
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- เผยแพร่เมื่อ 7 ก.ย. 2024
- An A-frame is a very simple tool for finding and plotting out a contour on a piece of land. In this video we show you how to use an A-frame and how to make an A-frame with just a few pieces of wood, some screws and some string (and an optional spirit level).
Thank you, I already got it. This solves my problem in my subject in Watershed Management ❤
yeap I finally got it.
I think you just save me a bunch of money for not buying that lazer.
Thanks a lot
Thank you
This is the primary instrument used by builders of the Roman Empire, they called it a “Groma”. It wasn’t a Roman Invention, they got it from the Etruscans, who got it from the Greeks, who got it from the Middle East!
Take a tripod and a a rifle scope and 8in torpedo a stick with a rule on it very similar to what the Egyptians used to build the pyramids
best video of how to use it. pity you used a wide lens.