I sensed your challenges don't sit long.
Richard, we learned to use the stump for shaping and shrinking at the seminar where I made the Jaguar rear fender shown some comments above. I think it is a good idea to have an oblong mould as well. Fortunately there are some more untreated stumps in the barn, will keep one or two of them to make different moulds for the next project.Hubert you will find that stump extremely useful. I use mine for roughing out shapes very quickly, and for a lot of shrinking work. Wouldn`t be without it. I also have an oblong shape in mine in addition to the two bowls I see in yours.
Giovanni, the stump is for making different round shapes, one special use is shrinking, as Richard said. The work plan for the sill is to do the vertical curve on the English Wheel, the straight horizontal bend on the brake, the curved horizontal bends on the bead roller and the front and rear ends on the bead roller as well. I will see if it works when trying it. 0,88 mm sheet wil be used.Ok,I understood. It's for shape the corner of sill? Are you using 1 mm thickness?