Unfortunately David, because I am so stupid, I have not been able to continue with the bowls!
Just been stuck selling inferior lumps of brown stuff to the unsuspecting public who know no better!
Arcos,
How far have you got, you've posted the first one, this may be where you've lost making copies the same, you needed to start with 6 blanks all of the same size, 8 blanks if you had the stock, 2 spare for you can never tell if a fault or crack may run in a large bowl blank, any copy work have a spare in case.
John BHT, said to make a card profile once you made one ... better still create a rectangular thin plywood layout template the piece should be a little wider than half the diameter of the bowl, mark what will be the center line just in from the edge, measure next the outside edge of the bowl, measure the intended rim/wall thickness, you'll have the inside set, transfer the center line across to the other side, from that then mark half the diameter of your chuck jaws, you could also have the outer diameter reference as well, would help confirm all lines up.
That was half the width of the full bowl, the side of the ply needs to be a little over the intended height, you'll mark the foot and it's height, then the height to the finished rim, with this bowl you've just the long flowing curve, so it's not to add any detail that could have been in the side/edge of rim.
Your set now to repeat the bowl when ever you like or need to made them. Not knowing how you first mount the blank to cut the foot/chuck mount or shape the outside, I'll start that the blanks mounted, true up (make flat) the bottom face and mark the center, with the template on the toolrest, aline the center line and mark the foot/chuck mount and outside diameter (in time you'll mark these with the lathe running, but for now mark, then draw with lathe on) now true the edge and turn to shape and finish, repeat this operation with all the blank, well next 5.
Rechuck, true the face and mark the center, aline template, the outer edge should be correct, just need the mark rim/wall and what is to be removed from inside and finish ... and the next ... John's template is ideal just to double check the form at each step.
I'd considered scanning pictures of the template and how to use it that are in a book, but don't think for copy right should do so, so I'm hoping you have the idea, should you not be able to find reference at all on the internet to the layout with the template.
Look forward to seeing them finished.
David