Peter Coombe Mandolins and Guitars
Glue the top
Before the top is glued on there is a little preparation to be done. The sides are already bent and glued to the headblock and tailblock. However, most wood has a memory, and will try and straighten out a bit. When this happens the shape of the ribs can go a bit odd, sometimes asymmetrical. To ensure the correct shape I have an internal mould shown in this picture.
Here the internal mould is in place.
Firstly a small nail is hammered into the headblock
Then the nail is cut so it is only about 3mm long. This is to ensure than when the top is glued on it stays in place and does not slip on the glue and wander around.
The top is then dry fitted so the nails poke little holes in the underside of the top. Thus when the top is glued, the holes will ensure the top is positioned correctly.
Glue applied to the linings.
All clamped up. This is left to dry for 24hrs and then the clamps are removed.
Next the linings for the back are glued in place.
Here they are all clamped in place with clothes pegs. The clothes pegs will be removed after the glue has dried and then it will be ready for the riser block and neck.