OK, what's the theory here? When knuckles need to be bolstered or the leather tightened - what was the cause? Did the core felt get too packed, or did the leather stretch? If the leather stretched, the bolstered knuckle will be larger changing the action ratio some. If the felt packed down and you make the leather shorter the knuckle will be smaller and also change the action ratio. Since in many cases we didn't see the knuckles when new and even if we did there's probably zero chance that we'll remember how large the knuckles were originally. Which repair would keep the action ratio the same? dp David M. Porritt, RPT dporritt at smu.edu<mailto:dporritt at smu.edu> From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Kidwell, Ted W Sent: Friday, March 13, 2009 11:53 AM To: caut at ptg.org Subject: Re: [CAUT] STEAM! STEAM! STEAM!!! Thanks for the input. I'll have to try this. I had seen this technique in a Journal article a year or so ago but it looked time consuming. If you say it is as fast as, and better than bolstering I'll have to give it a try. One more question- do you treat the felt under the leather in any way before regluing? Ted Kidwell, RPT California State University, Sacramento Capistrano Hall, rm. 153 6000 J Street Sacramento, CA 95819-6015 916.278.6737 ________________________________ From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Jon Page Sent: Thursday, March 12, 2009 8:11 PM To: caut at ptg.org Subject: Re: [CAUT] STEAM! STEAM! STEAM!!! Here are a couple photos to make clear what I was trying to describe about creating clamps from a pipe. Here's a photo someone sent to the list a while ago. -- Regards, Jon Page -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/caut_ptg.org/attachments/20090313/a78f854a/attachment.html>
This PTG archive page provided courtesy of Moy Piano Service, LLC