Hi Ric - This piano is only ten years old and barely played. Original hammers with no discernable wear. This is factory work, not the work of some shmuck in his/her garage. Hi Philip - The hammer is perpendicular to the shank and the hammer tip is a full quarter-inch below the string plane when the shank is horizontal. This is NOT a well set-up action - this IS a screwed up action! Terry Farrell ----- Original Message ----- From: "Ric Brekne" <ricbrek@broadpark.no> > Boy are we on the same rollercoaster. I just got done doing a hammer > replacement on a Bluthner here at school. Someone had replaced these > hammers a few years back and had really managed to muck up the bore > length. A couple <<clues>> were drop screws turned up as high as > possible and still too much drop, hammer rest rail at 48 mm from > strings !!... ie a reallllly short stroke. These hammers were so worn > down it was impossible to be sure of the origional bore length, but > after boring to 53 mm for the new hammers I had to lower everything like > drastically. Seems like many techs doing this kind of work still dont > know how do deal with finding the proper bore length. My best guess on > this one was that whomever just guessed at the bore length based on a > worn down set of hammers. > > Cheers > RicB > ----- Original Message ----- From: "Phillip Ford" <fordpiano@earthlink.net> Could you clarify what you mean by overstrike? Are the hammers square to > the shank? Or are they square to the strings with a short bore? > > We had a discussion about this a few months back. You might check the > archives. Some of it ended up in the Journal Q & A Roundtable a few > months > ago as well. The Feurich 220 grand that I have (whose agraffes were > recently mentioned) had a very short bore (I don't remember the numbers > offhand, but it may have been more than 1/4 inch), but the hammers were > angled back so that they were striking square to the strings. As far as I > know this was the original setup. This is a high quality piano with a > Renner action. The action regulated properly with things set up this way, > so I have to believe it was deliberate. This generated a discussion about > whether the 'proper' setup is to have the hammers square to the > shanks. When I replaced the hammers I duplicated this setup. The piano > plays and sounds fine. > > Phil Ford > >I experienced a new low today. I did a bunch of work on a 6' Hyundai >>action (10 yo) and was set to do a bench regulation. Using my pre-measured >>string heights, I found that I obviously made a gross mistake with my >>measurement somehow. So I drove the 40 miles back to the piano and >>re-measured - my original measurements were correct. The hammers on this >>thing were bored to produce a full quarter-inch overstrike. >> >>What are the correct words here - this is amazing - did they build all >>their pianos this way? Don't they just have some jig in the factory where >>all hammers for this model are drilled the same way? Did somebody's finger >>get in there and jacked the jig up a quarter inch? >> >>Has anyone ever seen anything like this? Maybe I just haven't been around >>long enough! >> >>Terry Farrell
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