This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Comments below: =20 ----- Original Message -----=20 From: "Ron Nossaman" <RNossaman@cox.net> To: "Pianotech" <pianotech@ptg.org> Sent: Monday, May 19, 2003 10:17 AM Subject: Re: Bass String Length Equality >=20 > >I am redoing an upright. I have notched the new bass bridge in the = bicord=20 > >area. However, the pinned-cast-iron upper termination is in a = horizontal=20 > >line, whereas the strings are at a fair angle - hence, the left = string of=20 > >each bicord is a few millimeters longer than the right string. I = should=20 > >think it fair to assume then that redoing this upper termination to=20 > >produce equal string lengths would be of some benefit. >=20 > Didn't you make the notches parallel to the top bridge,=20 I knew I should have sent this to you/Del privately. Egg on my face. = Amazing what you can learn by just rebuilding one piano. Amazing what = you did not know while rebuilding it. Amazing what seemed like the only = way to do it, later seems so obviously stupid. No, I did not make the notches parallel to the top bridge. Indeed, would = seem to be the logical thing to do. Ahh, hindsight. > or did you notch=20 > perpendicular to the strings? I'll give you one guess. Let's see how bright you really are! > If the top bridge is wood, I'd make a new one=20 > to accommodate the notches in the lower bridge. It's not wood, but rather just the simple ridge on the cast iron plate = with the steel pins. Hey! I just bought a grinder!!!!! =20 > If I was just replacing a bass bridge on a vertical piano without any = other=20 > extensive work, I'd just bevel it like it was originally. EXTENSIVE WORK ZONE! =20 > >My question is: would the benefit/difference be audible - would it = make=20 > >for a better piano to the discriminating ear? >=20 > With the deviation as a percentage of overall length, and with the = erratic=20 > nature of wrapped strings, it's doubtful. Still, if this happens to be = the=20 > M&H you're putting all that redesign work into, it should be as clean = as=20 > you can make it. Yes it is the M&H, and yes I want to make it as clean as is (reasonably) = possible. Oh shoot. What a dipstick. I actually did think to make the notch the = same way as the top termination - but that thought withered away - or = maybe it was fogged out by all the other confusion. I recall yesterday when my wife got home she asked me how my day went. I = told her all activities had progressed in a positive manner. One of = yesterday's activities was notching and pinning the bass bridge. Well, I = guess that's why God made lots of maple...... Terry Farrell =20 > >I should think the difference would be much the same as on a grand = that=20 > >has agraffes in the bass and the bicord area of the bass bridge is at = a=20 > >fair angle to the strings and is upgraded from a continuous single = bevel=20 > >to proper notching. Does this upgrade on the small grand result in an = > >audible improvement? > > > >Terry Farrell >=20 > If the agraffe is already parallel to the bevel, notching and = repositioning=20 > the agraffe so they will both be perpendicular to the string won't = make any=20 > real difference. >=20 > Ron N >=20 > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/43/5f/fb/77/attachment.htm ---------------------- multipart/alternative attachment--
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