The metal saw blade is an amazing invention. It dates back to 3000 B.C., when the ancient Egyptians used copper saws to cut wood and other materials. Later saws were made from bronze, then iron and finally steel. Flexible modern steel blades are very efficient, and a great help to anyone caught in the wild. But what if you lack the saw frame to make the tool workable? Then you can hack out your own bucksaw frame from just a few straight sticks, using your knife, two nails, and some 550 paracord. Here’s how.