Here I show the repair of a web of a classical guitar, which is also the production of the web shown
Webs on classical guitar must not afford the resistance as long steel strings. The gut strings used on classical guitar build not so huge string tension and notches not as the seat insert. When it comes to damage to lands then usually that Deckenverleimung rises or the wood of the bridge itself was damaged (eg cracks along the wood grain). The specimen shown here, the owner was very well considered on its own power and replaced the broken Knöpfchen web part by a Stöckerl construction.
Here only helps the complete replacement. With a hot knife to solve carefully the web. It operates from a corner slowly around and take specific care that the ceiling timber not chipped when lifting.
The outside dimensions of the old web (29.5x190) is plotted on a rosewood 10mm strong piece and cut with the band saw.
With a miter saw to cut the left and right of the center piece about 6mm deep. To ensure that you cut vertically, it helps if you stuck an angled piece of wood to the cut point. The width of the middle piece is predetermined by the string inlay. The plastic piece measures about 82x2.2x10mm.
The next step is drilling the string holes 6, each 1.5mm thick and 11,4mm apart. It is helpful in this case to provide the vice far inclined that the drill at about 2.5mm enters from behind and re-emerges in the middle part at 4.5mm.
Now one polishes the rounded transitions to the front and back of the middle part.
The side panels are also rounded with a file.
A bevel on jederm side part is mounted and then everything all over again sanded with sandpaper to the 240th
At the coarse polishing disc, the web is polished and is therefore ready to be glued.
With quick-clamps and glue is glued exactly on the surface of the web of the old new.
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