I ask for your comments and suggestions about a opportunity (problem) with a couple similar bowls. Both made from walnut and maple. One about 11 1/2” other 13”. History—have been doing segmented bowls for just over a year with this cracking only on these two. I hope you can see the two joints with the yellow circles. Those joints separated by appx. .0003th of an inch. If held up to a light you could see through. These were made the same way as almost all the bowls I’ve made. Twelve segments per ring, glued with regular Titebond yellow glue, clamped with large hose clamp until dry, then flattened before gluing to waste block and other rings. The dark dot in the center is a piece of 1/4” dowel in a 1/4” hole to clean up the sharp points of the segments. The cracks run from the dowel to the outer edge of segment where it joins with the next ring. I have repaired with CA and sawdust forced into the cracks and sanding and refinishing. I’m sure you will come up with some good ideas and suggestions so thanks in advance. Just maybe someone else has is experiencing this and it would help them also.
-- I love the smell of sawdust in the morning. Vernon