A Guitar Called Jack--Part 11

Here you can see that Gerry is bracing up the walls of the guitar with threaded rod rather than the wooden cauls used earlier. He switched to the threaded rod at this point in order to better see precisely where the sides of the guitar and the soundboard line up. This is critical, as it is necessary to cut back the X-brace and the upper-transverse brace to fit within the sides. It is also necessary to notch the kerfed lining to allow the brace ends to "sit" in the linings. These procedures have to be done with painstaking accuracy, as the coupling of the soundboard to the side is absolutely critical to the guitar's tone. And the alignment of the soundboard to the sides also is critical to the ultimate action. So, slow and steady wins the race....