I FIRST made one of these set up jigs for the pinecones, It worked so well that I made one for a concert build last year. I have just completed this one for tenors. The "turtle" holds the sides in place as you assemble and attach the sides to the top. It has been a great improvement in my process.
you can see how it holds the side in place as you attach them to the "butt plate" Oop's, I need to make the butt blocks and glue them on.
 Here is a butt block glued and clamped. They must be curved to accept the curve of the side. I make them of scrap pieces of walnut. strong, not too heavy, stable. |  Here they are, all glued and clamped, better leave them clamped overnight they will take a lot of tension in the side attaching process. |
And finally, the four pinecones are almost done. Maybe one more application of the thinner French Polish to really make them sparkle. Then I will be attaching the bridge and the Pegheds. These beauties will be singing in another week.
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