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 ...
Step 4: Flip the square
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 it a tiny fraction of an inch away from the first line. If the square is truly square, the lines should not diverge from each other in the least.
Bio:I miss the days when magazines like Popular Mechanics had all sorts of DIY projects for making and repairing just about everything. I am enjoying posting things I have learned and done since I got my...read more »