I was in a boardroom and I noticed that one of the clocks had dropped off its nail and it broke the frame in two places. I assumed is was a very cheap clock made with plywood or some other engineered material. To my surprise it was laminated solid wood.
The repair for this seems simple enough. Just need to glue it. Issue is that I want to provide clamping pressure perpendicular to the direction of the crack. That is not easily done. Now, it would probably suffice to clamp on sides (shown in the picture as the right and left sides) and get a pretty good seal.
Let's play and pretend that this clock is something more important and I want to be sure the clamping pressure is as close the to crack as possible. How can that be done?
I picture a jig of the same diameter as the circle so that it can't bow out but I wonder if there are simpler ideas. Likely this would apply as well to other things and not just circles... other polygons with a large number of sides.