How to make and use an A frame for plotting a contour

Описание к видео How to make and use an A frame for plotting a contour

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).

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