<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40" xmlns:ns1="http://schemas.microsoft.com/office/2004/12/omml"> <head> <meta http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <meta name=Generator content="Microsoft Word 11 (filtered medium)"> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PostalCode"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="City"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="Street"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="address"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="State"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="place"/>  <style>  </style>  </head> <body bgcolor=white lang=EN-US link=blue vlink=purple> <div class=Section1> When you are using a very hard pin block there is no margin for error in your interference fit with the tuning pin. You must design a reduced interference or the torque levels will be too high. With less nominal interference you’ll end up with a loose pin if the pin tolerance goes small and the drilled hole tolerance goes large. <o:p></o:p> <o:p> </o:p> When using a softer block you can design a greater interference fit and still end up with a great feeling pin with a reasonable level of torque. <o:p></o:p> <o:p> </o:p> <div> Dean<o:p></o:p> <u1:PersonName u2:st="on">Dean May</u1:PersonName>             cell 812.239.3359 <o:p></o:p> PianoRebuilders.com   812.235.5272 <o:p></o:p> <u1:place u2:st="on"><u1:City u2:st="on"><st1:place w:st="on"><st1:City w:st="on">Terre Haute</st1:City></u1:City> <u1:State u2:st="on"><st1:State w:st="on">IN</u1:State></st1:State>  <u1:PostalCode u2:st="on"><st1:PostalCode w:st="on">47802</u1:PostalCode></st1:PostalCode></st1:place></u1:place><o:p></o:p> </div> <div> <div class=MsoNormal align=center style='text-align:center'> <hr size=2 width="100%" align=center tabindex=-1> </div> From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Greg Newell Sent: Monday, January 14, 2008 1:51 PM To: 'Pianotech List' Subject: RE: Pinblock for <st1:place w:st="on">Baldwin</st1:place> SF-10<o:p></o:p> </div> <o:p> </o:p> Al,<o:p></o:p>                 I don’t see the problem with using Delignit blocks if you are careful with your drilling. It seems that drilling is the key no matter what block you use. I personally like to drill a sample piece after cutting and shaping the block to fit the flange and then waiting to see what time does to it while waiting for other parts and strings to arrive. Doesn’t matter which block just see what the sample did and adjust accordingly. <o:p></o:p>                 What went wrong? Could have been too tight from the factory (never seen this before on a <st1:place w:st="on">Baldwin</st1:place> J) and someone tried to heat or otherwise treat the pins and their solution went awry? It could have been a spill of some kind. Heck, could be just about anything, no? What happened is kind of a moot point. It now is, what it now is. Your job, should you choose to accept it, is to effect a solution.<o:p></o:p> <o:p> </o:p> <div> Greg Newell<o:p></o:p> Greg's Piano Forté<o:p></o:p> www.gregspianoforte.com<o:p></o:p> 216-226-3791 (office)<o:p></o:p> 216-470-8634 (mobile)<o:p></o:p> </div> <o:p> </o:p> <div> <div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'> From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of AlliedPianoCraft Sent: Monday, January 14, 2008 1:18 PM To: Pianotech List Subject: Pinblock for <st1:place w:st="on">Baldwin</st1:place> SF-10<o:p></o:p> </div> </div> <o:p> </o:p> <div> I am installing a new pinblock in a Baldwin SF-10. This piano is only 10 years old, but the pinblock has been destroyed by the use of metal tuning pin sleeves in combination with CA glue (about 30 to 40 sleeves and glue all over the place). I can't imagine a 10 YO piano with what appears to be a Delignit pinblock get so loose that it required this kind of desperate repairs.<o:p></o:p> </div> <div>  <o:p></o:p> </div> <div> My question to the other rebuilders is this. I have always used Bolduc pinblocks in Steinways and Masons and have used Multi-Laminate pinblocks in lesser pianos, (never had loose tuning pins in 40 years), but I have never used a Delignit pinblock. Should I replace this pinblock with the Delignit (which now scares me) or one of the others? Also any thoughts on what might have gone wrong with this piano?<o:p></o:p> </div> <div>  <o:p></o:p> </div> <div> Thanks for any input<o:p></o:p> </div> <div>  <o:p></o:p> </div> <div> Al Guecia Allied PianoCraft <st1:address w:st="on"><st1:Street w:st="on">PO Box</st1:Street> 1549</st1:address> <st1:place w:st="on"><st1:City w:st="on">High Point</st1:City>, <st1:State w:st="on">NC</st1:State> <st1:PostalCode w:st="on">27261</st1:PostalCode></st1:place> (336) 454-2000 <a href="mailto:PianoTech@alliedpianocraft.com">PianoTech@alliedpianocraftcom</a> <a href="http://www.alliedpianocraft.com">www.alliedpianocraft.com</a><o:p></o:p> </div> </div> </body> </html>