I have been experimenting with curved joints in laminating rather than straight joints. After three weeks work I had completed the top of a new laminated bowl, ready for the lathe. Mounted securely and started to turn the edge true when there was a simple "crack" and the job dissentigrated in a flash.
(photo 1)
I found six of the eight segments and gave up in disgust. Three weeks latter the missing two pieces came to light and the bowl was repaired and completed. I am reasonably happy with the result. The bowl or hollow form is 310mm diameter and 120mm high.
(photo 2)
Jim