In a message dated 00-03-19 01:19:48 EST, you write: <<check the block to flange fit. Wedges may need to be inserted to fill a gap.>> (Jim quoth) <So many people have made this, or similar, comments in this thread that I have found it needful to comment/ask a question(s) in spite of having promised myself in the past that I would not do so......> But here you go, Jim....It is late, you can be excused for clicking on "send." Me too, hopefully. As I noted, I have never had any luck with wedges, and I believe Yamaha says that this fit is not important anyway. But I remember back 20, 25 years ago this was a hot thing, and the folks from the Yamaha service department were even distributing wooden wedges. However, later they began downplaying this. The Steinway or Mason and Hamlin pinblock to flange fit needs to be pretty good (whatever your standard is for this, it needs to have frequent, solid flange contact). The Yamaha uses plate bushings, and is fitted to the webbing. The pinblock is being pulled AWAY from the plate flange, for the most part, via tunig pins pivoting at the plate bushings. So I think, at 12:30 PST Saturday night. Bill Shull < Does anyone have any "objective" evidence that there is significant (meaning tuning altering) pinblock movement after intial tensioning of the strings....since the talk is of "wedging" between plate flange and pinblock it is movement in this direction that I am adressing....any 'objective' evidence anyone?? What is the purpose of "wedging" a pinblock that is itself floating?, i.e. not mortised, glued, doweled............... What is the purpose of "wedging" a pinblock that is mortised to the stretcher, doweled to the sides and the top back plate flange is screwed to the stretcher ?? If there were pin block movement in this case would there not be separation of the mortise joint at stretcher-pinblock joint? Where did this measurement of a "business card" come from? Who set this standard? if less than a "business card" gap is there is that acceptable? If so is a gap of half a business card going to cause problems with tuning stability? If not, why not?........... there still is not a solid flange fit is there?> <Again is there any 'objective' evidence in this regard? Jim Bryant (FL)> >>
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