Reconstruction of a modern violin to a baroque version
We would like to display a few interesting repair tasks for you on
the following pages. The first will be the reconstruction of a modern
violin to a baroque version at our workshop.
The next task will be to introduce you to how a neckgraft is replaced,
which means nothing more than replacing the instruments neck.
Belly area under the fingerboard: Before the bassbar ruptured the much too thin belly (0,6mm stark!!).
Inside belly under the sound post.
If it comes to a sound post crack (a crack along the belly or back
directly above or below the sound post), the only long-term repair
possible is the installation of sound post patch. After making a surface
curvature cast, the interior area near the sound post is carefully
hollowed out to a thickness of 0,8mm (See immage).
Sound post patch made of wood grown like and having the most similar
qualities of the instruments wood is fit into the cavity with precise
Gluing in the sound post patch
Afterwards the sound post crack is secured with vellum strips. On the
photo there are still underlaid edges with a doubling visible around
the lower block and lower bout areas.
The general view makes visible the upper patch, underlaid edge with a
doubling, remaining sound post patch, crack protection as well as the
On the following photos you can see belly rupture (above) on the repaired violin.
After the varnish touch-up nothing more can be seen of the instrument's old damage.
The ebony veneered fingerboard is also very beautiful. Fingerboards
like these were used in the past for various reasons: To save weight,
for instance. This weight was considerable due to the pronounced wedged
profile the old fingerboards had. More information here.