Yep, nail-on-head, should have turned the bottom thinner. QUESTION, something I've been wondering about -- when you rough-turn a bowl, are you planning the foot right then and there, leaving a green-turned foot, or just having a tenon (with a centering nub)
I have made a lot of bowls, so I have a fair idea of what the bowl will look like in size, shape, and grain pattern as I cut blank. I still go through these steps below to get the shape and grain pattern. I try to listen to the wood when it is still a log.
When I rough turn a bowl for a cut rim bowl:
I rough turn the blank round with a crude bowl shape
Line up the grain by shifting the tail center and turn round again
I set the rim with a cut to establish the corner of the rim.
I turn what I call a notion of the foot
I then try to connect the foot to the rim with a pleasing curve.
If I don't like my attempt at a pleasing curve I can:
Change the curve with the same foot and rim
Make the bowl shorter by moving the foot up
Make the bowl shorter by moving the rim down
Make the bowl smaller diameter but cuttin the rim inward
Or combinations of the above
Currently I do sort of an ogee for the foot and my tenon will be in the center of it.
My rule of thumb for foot diameter of a functional bowl is about 1/3 of the rim diameter
The smallest bowl I do is 10" diameter.
I need To Turn the notion of the foot to be able to visualize the curve of the bowl.
Centering the grain and gettin the curve make returning the bowl is fairly easy.
Sometimes I find a surprise in the roughing that makes me change my mind about what to make from the blank.
Al