[skintkarter]

Originally Posted by Jack 1957

Richard, I'm not sure I completely understand what you're trying to do but from the picture with the sheet laying on the buck, I think you are trying to make what would look like a lang section of a tube but you ended up with a concave bowl. If that's the case, you don't want to stretch the middle, you want to stretch along the edges lengthwise. More material along the edges will make the sheet lay down. Stretching in the middle will just make a deeper bowl.
You said you might have ruined the first attemp, so test this method on that sheet. You'll see what I mean.

Thanks Jack.