Before I would use your suggestion, I would check and see how many leads are already in the keys. If you have to install too many leads to achieve desired down weight, you are going to have inertia issues. I have added whippen springs on a couple of pianos where too many leads had been used. You can achieve the same downweight, but the action will feel better. I am not intimately familiar with the Fandrich-Rhodes system, but I doubt that it could solve the problem of too much lead (even as it may be an excellent system in other scenarios). Will Truitt From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Ryan Sowers Sent: Saturday, April 10, 2010 1:19 PM To: pianotech at ptg.org Subject: Re: [pianotech] renner whippen assist springs Better yet, leave out the springs and go with a traditional key weighting. Darrel Fandrich and John Rhodes presented a great class on this topic at the Pacific NW Regional conference this past March. They have a very efficient and clever set up for evaluating and installing key weights..Its available through pianofortesupply.com The touch will be way better than with the wippen assist springs IMHO. Since actions with wip assist springs have minimal weights, it makes the key weighting processes even easier. On Sat, Apr 10, 2010 at 8:26 AM, Jon Page <jonpage at comcast.net> wrote: Tom. i make new springs with phosphor Bronze wire from Instrument Workshop: http://www.fortepiano.com/thewireplace/PhosBronze/phosbronze.htm I made a spring making tool (jpg attached). I like to make the loop arm 2mm longer so it does not strain at the loop in the rest position. With a longer spring arm, the difference in tension between rest and let off is not as great as with the OEM spring. I have lots of the OEM springs. Take a ride down... :-) -- Regards, Jon Page -- Ryan Sowers, RPT Puget Sound Chapter Olympia, WA www.pianova.net -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100410/9abf4464/attachment-0001.htm>
This PTG archive page provided courtesy of Moy Piano Service, LLC