Sound post crack The top is removedThe label with stampThe top sealed in a vacuum bag in preparation for pouring the plasterThe plaster is poured in the mold, with a backing piece of wood placed on topThe cast that will support the top during the repairThe bed of the patch- the wood is removed and new wood will fit into the areaFitting the patchThe patch is glued and excess wood is removedThe completed patchA few cleats The top is ready to be glued to the bodyClamping the top on the ribsThe violin is ready to go- with a new soundpost fitted inside