In the past, horizontal felt that I had received from supply houses was simply too firm for my liking and I believed that was due to the fiber orientation. I have since received European samples of both vertical and horizontal layered felt that are simply "juicy", for lack of a better word. I plan to go with the horizontal felt which I believe is (marginally) the superior of the samples I have. But I have not placed my order yet, and I would be interested to hear other technicians' views on vertical vs horizontal. On Mar 22, 2008, at 12:00, Chris Solliday wrote: > vertical layering comes to mind but I'm sure you're already on that > page. > Thanks, > Chris Solliday On Mar 22, 2008, at 12:00, David Skolnik wrote: > Jurgen - > General question(s): If you're going to the trouble of having these > fabricated, are you starting with the best possible materials? Absolutely! > Also, for shapes other than flats, has it been conclusively > determined whether horizontal or vertical grain is preferable, or > whether the application, or other parameters determine the > preference? I don't believe these questions have been answered definitively, a case in point being various high end manufacturers using different orientations. What are your thoughts on this? > Are you planning on supplying only one? There are limits to what I can fill my shelves with right now, and my goal is to stock a product that will work very well for a large range of pianos. For the time being, I plan on stocking only one grain orientation; at this point I am looking at horizontal felt. > I happen to be about to do dampers on a Mason A, which used, for lack > of a better description, M > shape felts on the lowest 4 wound bicords. I've seen these before, > and wonder if the design was dropped as ineffective or due to > difficulty in manufacturing. > I'll measure some and send them if no one else does first. That would be great, thanks. On most pianos, the lowest few bi-chords benefit a different damper felt geometry than the thinner strings further up. As well, on many pianos the bi-chords are more widely spaced down at the bottom, which is what my original query about the agraffe hole spacing was about. Thanks for any input. Jurgen Goering Piano Forte Supply (250) 754-2440 info at pianofortesupply.com http://www.pianofortesupply.com -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/enriched Size: 3121 bytes Desc: not available Url : https://www.moypiano.com/ptg/caut.php/attachments/20080322/ee689bc7/attachment.bin
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