Friday, January 30, 2015

Woodworking and pianos




          
                            Pianos are made mostly of wood and sometimes the wood can warp.
                            I am a full time piano technician " jackspiano" and there
                             are times when I have to  do some creative woodworking.




                               The piano is a Bosendorfer grand and I am tuning it to A=440
                               using a Verituner app with an iPad.          
     


                               As I am tuning I find a problem with some of the hammers.
                              They  make a clicking sound when they are struck. I have to
                              take the piano apart and see where the  problem is.


                             

                                The keyboard which is the keys and hammers has to be removed
                                so I can inspect the inside  the piano....


                                

                 With the keyboard out of the way  I see that the pinblock is warped.  








                                  bottom of the pinblock....
 Inside the piano........                                                                        




                                The pinblock has to be planed down so there is enough clearance
                                for the hammer shanks. It did not take much, after around 20 stokes
                                with the plane I tested and it was fine.                                                           




                                Everything is put back together and the  problem is solved, no
                                more clicking and the piano is ready to play.  I don't know if the 
                                pinblock will keep warping but this worked out, I will just have to
                                keep monitoring the piano.










See also:

Make a wooden hygometer            French cleats on steriods                  Finishing table

                                                    


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