On Wed, Jan 20, 2010 at 11:30 PM, Ron Nossaman <rnossaman at cox.net> wrote: > William Monroe wrote: > >> Sure, each their own. For the most part I guess it feels like trading one >> task for another. Epoxy size the hole and drill out, or dip the pin and >> drive in? Probably a wash for me. >> > > Or drill deeper, and inject epoxy before inserting new pins. > > > OK. > > Yes, you really do need to wear gloves when driving in the pins and >> shoe-shining the cap, but it's really a very localized process for me. >> > > You do? Why? > > I prefer not to have epoxy on my hands. I'm sure others are more capable than I at never getting epoxy anywhere other than the intended surface, but I occasionally make a mistake. In particular, epoxy does get on the panty hose, which gets gripped and regripped many times throughout the process - makes for sticky hands in my world. > > > As for stressing the pins, unless you really bear down on the pins, or sit >> in one place, there is no danger of lateral stress or overheating. >> > > If you drill the holes deep enough that the pins won't bottom out, there's > no need to stress or overheat anything. Just drive the pins to finish height > and walk. There's no acoustically magic reason to bottom pins in the holes > (and they won't stay there anyway), and finger knuckles like round top pins > a whole lot more than filed or ground edges. > > True. Some prefer the look of filed pins. I don't bottom them out for acoustic magic or any other mythological misappropriations, just out of preference. I have more luck keeping my knuckles off filed pins than epoxy off knuckles, I guess. > > > Certainly nothing approaching what the strings themselves do, I would >> think. >> > > This would be the lateral stress, and correct. Heat, not, obviously. > > Not quite sure what this meant....... > I've heard the arguments, and I think it's a reasonable concern, but as >> with most things in this biz, if you use appropriate care with this process, >> there is no cause for concern. >> > > Ah, but why? When it's just as easy to drill the holes deep enough that the > pins won't bottom out, so you can drive them to final height initially, > would anyone worry about the potential detriments of filing or grinding the > tops? > Ron N > Again, aesthetic. Some like filed pins, some don't. Sometimes it's expected, too. There's no acoustically magic reason to not file pins either, so it becomes a choice in aesthetics, not function. I've done it both ways, and don't really have a preference, but some of my clients do. Lacking any real evidence supporting the idea that judicious filing of bridge pin tops damages the system, I see no reason not to utilize either method to achieve a particular finished appearance. -- William R. Monroe -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100121/efa0954f/attachment.htm>
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