Hi all on this thread:
Just another of my life experiences
something that I was taught by my dad for very fine repeating measurements (especially inside measurements). He made up small straight sticks about 5\8ths square (2), tapered them at the ends and squared them at this point. Each stick was about 3 feet long and they were used by placing them on top of one another and sliding them along until they were up against what ever you were measuring, at this point using a finish nail it was tacked lightly, now it was easy to transfer this measurement to a new position as many times as it was needed and the measurement was very accurate.
I always used this method when accuracy was the rule of the game, and errors not allowed or could be costly.
I always kept a couple of sets of these sticks around the shop and forgot about the tape measure
NH