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This is a good brand name square my father bought. When I used it I discovered it was not actually square. The rivet and brass system for attaching ...
If you want to check a square, you could hold it up to another square, but that one could be inaccurate, too.The dark brown piece of wood in the photo...
This is a piece of clean scrap paper. I taped it so it does not move.
Hold the leg of the square firmly against the straightedge. With a fine point pen, mark a line along the other leg of the square for its entire lengt...
In geometry it is true that two lines perpendicular to the same line are parallel to each other. Flip the square over and score a second line. Make ...
A close examination of the lines drawn reveals they are parallel. The square is not out of square.But, earlier I said this square was not square when...
I have never tried this method, but it is a recommended way to make a square square. Use a small punch to make dimples that force the legs of the squ...
My preferred method for squaring a square involves using a file. Assume the legs of this square are open too far. The angle between the two legs is ...
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