Reconstruction of a modern violin to a baroque version

The next task will be to introduce you to how a neckgraft is replaced, which means nothing more than replacing the instruments neck.

Ruptured belly area before the repair

Belly area under the fingerboard: Before the bassbar ruptured the much too thin belly (0,6mm stark!!).



Inside belly below the sound post

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).

Hollowing out for the sound post patch

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 care.


Gluing in the sound post patch

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.


General view of the repaired belly from within

The general view makes visible the upper patch, underlaid edge with a doubling, remaining sound post patch, crack protection as well as the bassbar.


Belly after repair

On the following photos you can see belly rupture (above) on the repaired violin.


The belly repair work is practically invisible

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.