The “kerfing” is then glued around the inside of the back edge, just a hair proud of the edge. This serves as a gluing surface for the back board to bond to the guitar sides. The kerfing will now also be sanded until it is flush with the sides.
The edge of the sides at the back are sanded down to the appropriate wide dimension, flush with the tail block
Once the back edge is completely kerfed, the back is glued on. Spool clamps are used to maintain pressure around the full perimeter of the guitar body.
The back is secured onto the guitar sides, ready for the LoonSong label to be applied before the front edge also is kerfed and the sound board is glued on.