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Blüthner Model 1
The soundboard damage on this instrument was extensive, with loose ribs and cracks right up to and underneath the bridges. This can occur due to extreme fluctuations in humidity over the years. The rib joints needed to be repaired, the soundboard shimmed and refinished, the instrument restrung, and the action regulated and voiced.
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Cracks and loose rib joints.
Removing the strings.
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Removing the tuning pins.
Removing the plate screws.
Lifting out the cast-iron plate.
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Putting pressure on the soundboard to re-glue the rib joints from underneath.
Using a router on a track to cut out slots for 1/4 inch spruce shims.
Cutting slots for 1/4 inch hard maple shims in the bridge cap.
Gluing the shims into place.
Trimming the shims.
Refinishing the soundboard.
The refinished soundboard.
Reinstalling the plate.
The strung piano.
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The final product after action regulation, tuning, voicing, and transport back to the client.