---------------------- multipart/mixed attachment David, Thanks for responding. Greg Newell At 04:56 PM 5/12/2003, you wrote: >I weigh off with the stack on, strike weights smoothed, the action >regulated and lubricated. Measure up and down weights. Figure out >friction and balance weight for each note. Adjust front weight leading for >each note to get even balance weight. One gram off the front weight will >increase the balance weight by 1 gram. You need a platform for weighing >such as David Stanwood makes and a gram scale. Make all the balance >weights the same and maintain as uniform a leading pattern as possible with >respect to front to back placement. Address high and low friction values. >Works very neatly. > >David Love >davidlovepianos@earthlink.net > > > > [Original Message] > > From: Greg Newell <gnewell@ameritech.net> > > To: <MPT@philbondi.com>; Pianotech <pianotech@ptg.org> > > Date: 5/12/2003 10:33:08 AM > > Subject: Weighing off an action > > > > Greetings listees, > > I'd like to ask if the method that everyone uses to weigh off >an=3D20 > > action is done with the stack in place or not. > > I've just finished an action from a "D" that I first >encountered=3D20 > > with jiffy leads screwed on underneath the keys. This was, I presume, >to=3D20 > > alleviate a touch that was too heavy. This was, of course, unsuccessful >and=3D > > =3D20 > > the individual leads were placed in such a way that about half of= them=3D20 > > clicked or knocked on the key frame. After some mental debate I decided >to=3D > > =3D20 > > replace all action parts in favor of the Renner Turbo Wippen and=3D20 > > appropriate shanks with "blues" etc. While going through the= procedure=3D20 > > during a marathon action day yesterday it was necessary to remove >and/or=3D20 > > change some leads in the keys. After a thorough mental debate I decided >to=3D > > =3D20 > > place an appropriate gram weight in the small hollow on the key just >before=3D > > =3D20 > > the back checks of the weight I desired and then remove, add, change,=3D= 20 > > whatever was necessary to allow a slow drop of the key at the= backcheck=3D20 > > end. I changed weight about every 6 keys or so starting from about 38 >grams=3D > > =3D20 > > or so in the bass and lightening the load by roughly 2 grams each= change. > > This seems like it's contrary to what most folks do when >weighing=3D > > =3D20 > > off an action as I suppose that the method is to gauge the rate of fall >at=3D > > =3D20 > > the front of the key and not the back. Since I had the stack off >initially=3D > > =3D20 > > I found it a great deal easier and faster to leave it off. The end >result,=3D > > =3D20 > > I must say, is quite good indeed. The graduation from top to bottom is >so=3D20 > > smooth! By the time it came to regulate the wippen support spring the=3D= 20 > > procedure was effortless. After a rough regulation and adjustment of >the=3D20 > > wippen springs the feel is still a very smooth and gradual progression. > > I suppose that one of the reasons this worked so well is the=3D= 20 > > consistency of the Renner parts. Has anyone else ever done it this way? >Are=3D > > =3D20 > > there any potential pitfalls anyone can see with this method? I >attempted=3D20 > > to concentrate any of the leads I added close to the balance rail= when=3D20 > > possible. I can't believe that the touch was ever very good as what I=3D= 20 > > encountered was very inconsistent. I will do final installations /=3D20 > > tweakings at the piano tomorrow. If there's any change in the= perceived=3D20 > > quality of feel I'll let you know but for now at least, I'm quite= happy=3D20 > > with the results. > > Looking forward to your comments! > > > > > > Greg Newell > > Greg's piano Fort=3DE9 > > mailto:gnewell@ameritech.net=3D20 > > > >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives Greg Newell Greg's piano Fort=E9 mailto:gnewell@ameritech.net=20 ---------------------- multipart/mixed attachment--
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