> The new agraffes we get here for the Steinway have a sharply angled > seat so that as you screw them down the brass is crushed and you are > supposed get the alignment that way without using shims. American > agraffes are different as regards the thread, so maybe it's only the > German agraffes that are like this. The agraffes I got from Painotek have quite an angle on the base - the outer part being the first to contact that plate. They sound like the same type of feature you are describing. I found that you get quite a bit of travel (turning) after the base first contacts the plate. Terry Farrell ----- Original Message ----- From: "John Delacour" <JD@Pianomaker.co.uk> To: <pianotech@ptg.org> Sent: Tuesday, December 11, 2001 7:54 PM Subject: Re: agraffes on - agraffes off > At 4:33 PM -0600 12/11/01, Ron Nossaman wrote: > > >The guys making their own shims are considerably in the minority and > >don't have these limitations, but that still leaves the height > >question for them. > > Yes, and that can be significant. If I'd screwed all the agraffes > home on the last Steinway O I did, they'd have been visibly up and > down all over the place owing to the irregularity of Steinway's > countersinking. > > > Those milling off the bottoms of the agraffe shoulders for > >alignment get the same height question. So what are all you > >rebuilders out there doing with those agraffes? > > The new agraffes we get here for the Steinway have a sharply angled > seat so that as you screw them down the brass is crushed and you are > supposed get the alignment that way without using shims. American > agraffes are different as regards the thread, so maybe it's only the > German agraffes that are like this. > > I inherited a whole load of upright agraffes a long while ago and > these have no thread at all. I never used them until last year when > I was rebuilding (properly this time) the first piano I ever restored > (in 1973). The agraffes were a beautiful tight fit in the threaded > plate borings and needed just firmly knocking in and lining up with a > fat screwdriver. That's perfect on an upright of course where the > shock drives them homewards but wouldn't do for a grand, though an > angled grub-screw could make such an arrangement feasible for grands > too; but I'm not going to put any thought into it. > > JD > > > > >
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