This is a multi-part message in MIME format. ---------------------- multipart/related attachment ------=_NextPart_001_002F_01C331B5.221A5AE0 ----- Original Message -----=20 From: <fssturm@unm.edu> To: "College and University Technicians" <caut@ptg.org> Sent: June 13, 2003 12:04 PM Subject: Re: Baldwin termination bars > > I told him I thought he'd just need to bite the bullet, pull = the strings, pull the unit,=20 > and see what he saw. =20 This piano may well have at least part of two separate problems. First, = there may be a mounting problem as witnesses by the tightening of the = attachment screws. If there is any gap at all between the termination = piece and the plate--especially under the capo tastro bar--there will be = a potential for a buzz. As I understand things, this is one reason why = the change was made from multiple unison pieces to individual unison = string termination pieces. The only way to tell for sure will be to = remove the section, check the surfaces and bed the section tightly using = a steel or brass filled epoxy. I would follow Roger's advice and have = the string termination bars smoothed and hardened as well.=20 The second problem is one which has always plagued this design. The = string termination angles are too shallow and front duplex string = lengths are too long to provide efficient string termination. On the = individual termination pieces I have successfully ground off the front = (toward the tuning pins) bearing bar and replaced it with a brass = half-round. So far this has proven to be a permanent fix. The following = drawing, which I hope makes it through the ether, should illustrate: This shows the individual termination piece, but hopefully your friend = will get the idea. > He feels sqeamish about it, lacking the old devil may=20 > care spirit, and wondering what happens if he gets it apart and = doesn't find=20 > anything. How can he charge for his time without assurance it will be = > productive. The age old problem. (My own solution is to eat the time = and call it=20 > educational expense).=20 Somehow I don't ever notice my doctor or my mechanic losing any sleep = over this as they bill me for their experiments.=20 > So anyway, I thought I'd throw the problem before this forum of = wise,=20 > experienced, skilled pandits in hopes that someone will say, "Hey, I = had just that=20 > same problem, and this is how I solved it," so as to ease my poor = colleague's=20 > nerves. Well, it's a common enough problem with these pianos. But the symptoms = can be relieved per Roger's suggestions or it can be permanently solved = per the above. It all depends on how much the client is willing to pay = for the solution. Del ------=_NextPart_001_002F_01C331B5.221A5AE0 An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/caut.php/attachments/38/76/53/36/attachment.htm ------=_NextPart_001_002F_01C331B5.221A5AE0-- ---------------------- multipart/related attachment A non-text attachment was scrubbed... Name: not available Type: image/jpeg Size: 69993 bytes Desc: not available Url : https://www.moypiano.com/ptg/caut.php/attachments/f2/f4/47/8b/attachment.jpe ---------------------- multipart/related attachment--
This PTG archive page provided courtesy of Moy Piano Service, LLC