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Posts in “Martin repair” category

Martin re-top final

The sides now need to be prepared to except the new top. Here you can see the side /back assemble is in the adjustable mold, this keeps the sides perpendicular to the top, the interior supports stabilize the sides so that they can be sanded with a large (18X 24 inches) sanding board, there are a few sections of the kerfed lining that were damaged during the top removal and need to be repaired.…  » read more

02/12/2012  | comments (0)

Martin top building Part two

                                      The new top is now glued up it has been band saw cut to the rough outline of the finished top and has been thickness sanded to .125 (or “1/8) at this point it is ready for the rosette, the rosettes purpose is to stabilize the rather delicate top at the so…  » read more

01/21/2012  | comments (0)

Top building, Martin re-top

One could ask, "what is this mess?" While they may look messy, these items are the components  of the worlds oldest clamping system, which is known informally as "sticks, rope and wedges". This system dates to the Romans and for the purpose of gluing the two thin halves of the top together it is the best!   The reason it works so well is that as tension is appli…  » read more

12/09/2011  | comments (0)

The Martin re-top continues

The next phase of the Martin re-topping project is to select a top. Here I have picked out a nice "AAA" Sitka spruce top. The original top would be considered low quality by today's standards, rating only a  "B'" at best. A word or two about tone-wood grading: every species has its own characteristics that are taken into account by the grader and a letter system grade …  » read more

12/08/2011  | comments (0)

Martin re-top

       The first step in re-topping this Martin is to remove the neck. This is accomplished by pulling the 15th fret and drilling a small (3/32”) hole in the fret slot; this allows access to the dovetail “pocket”. A heat blanket is used to soften the glue, so that the fingerboard “tongue ” can be loosened. Now comes the steam! I use a modified esp…  » read more

11/17/2011  | comments (0)