Hi Lance! How's the aftertouch? Did you try decreasing hammer blow distance and adjusting lost motion accordingly? Cheap pianos have a way of defying traditional comfort zones because so little attention is paid to how well the action geometry will work. Perhaps a more enlightened List Member can elaborate on this? ZR! RPT Ann Arbor MI diskladame@provide.net ---------- > From: Lance Lafargue <lafargue@iAmerica.net> > To: Pianotech Listserve <pianotech@ptg.org> > Subject: bobbling hammers-1993 Kranich&Bach > Date: Monday, February 02, 1998 5:48 PM > > Dear List, > I GIVE UP! I've been trying to help a customer of mine who bought a cheap > Kranich & Bach (made in Europe, 1993, sold by Baldwin) 42" upright. This > piano had double striking or bobbling hammers when I first saw it. To be > brief and to the point; I added let-off distance and dip, still some > bobbling on soft blows, added more, still bobbling at times, then I added > key height/dip, adjusted checking, and unless you are VERY deliberate and > get to the very end of each key stroke, IT STILL DOES IT occasionally. > Maker won't help, they said (basically) that's what you get for buying a > cheap piano. Now, the piano is no fun to play and you still get the > occasional bobble if you're not careful. > > I have come across this problem hundreds of times over the years and have > always been able to regulate it out, but I can't seem to get this one to > stop without regulating it out of the comfort zone. I remember some > Samicks and Yamahas in the low tenor had this problem due to the angle of > the surface on the butt where the jack contacts. Any ideas? Thanks very > much! > Lance Lafargue, RPT > New Orleans Chapter > Covington, LA. > lafargue@iamerica.net
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