This strange object (below) is my version of thickness callipers, intended to take measurements at various points of the soundboard.
The thickness of a lute soundboard varies from point to point.
Professional thickness callipers can be obtained at great cost – beyond my reach – so I thought to construct one for the Boatshed, using scraps of Ironbark, and a few offcuts from Dad’s special collection of Ebony.
Lignum Vitae, I recalled, was used long ago in the making of watch parts….it seemed to me that Ebony and Ironbark might serve well enough.
If the callipers don’t work, for some reason, I will try again….