I do watch too much You Tube. Anyway. I have seen a couple of turners use this trick, tried it and liked it. The turner, to mark out a tenon or recess would use the dividers. like I always do, but they would make the divider to be the radius rather than the diameter. This means you cut the measure in half, and then one point goes dead center, and the other point marks the line. No more worrying about touching the other edge into the up moving other side of the spinning bowl. It works really well! No idea who first thought of this.
robo hippy
robo hippy