.... which Ron Overs then coats with some other material (see archives) which is, if I'm not mistaken, harder than brass. Alan Eder -----Original Message----- From: Al Guecia/AlliedPianoCraft <AlliedPianoCraft at hotmail.com> To: pianotech at ptg.org Sent: Thu, 5 Mar 2009 11:35 am Subject: Re: [pianotech] Capo Bars But we do use brass agraffes with no problem. Al -------------------------------------------------- From: "Farrell" <mfarrel2 at tampabay.rr.com> Sent: Thursday, March 05, 2009 12:28 PM To: <pianotech at ptg.org> Subject: Re: [pianotech] Capo Bars > But if brass is softer than the steel music wire, and I presume softer > than unhardened cast iron, then isn't the steel wire going to cut a groove > into the brass capo insert? And isn't that what we're trying to avoid? > > Terry Farrell > > ----- Original Message ----- > From: "Dean May" <deanmay at pianorebuilders.com> > To: <pianotech at ptg.org> > Sent: Thursday, March 05, 2009 8:43 AM > Subject: Re: [pianotech] Capo Bars > > >> Young Chang started doing this in the mid 90s, don't know if they still >> do. >> They used a brass rod instead of steel. Music wire on brass is self >> lubricating. >> >> Dean >> >> Dean May cell 812.239.3359 >> >> PianoRebuilders.com 812.235.5272 >> >> Terre Haute IN 47802 >> >> -----Original Message----- >> From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On >> Behalf >> Of Richard Brekne >> Sent: Thursday, March 05, 2009 4:30 AM >> To: pianotech at ptg.org >> Subject: Re: [pianotech] Capo Bars >> >> Good question... and I'm looking forward to reading the replies. FTR, >> Bohemia pianos, a spinoff of Petrof after the splitup of Czechoslavakia >> actually did do this for a while... I'm unsure if they still do. They >> used some kind of bronze alloy I believe. Perhaps its a question of >> tooling and expense ? >> >> RicB >> >> >> Why do manufacturers harden capo bars rather than cast (or grind) >> the underside of the strut flat, rout out a groove to receive a >> steel rod of proper radius, shape and hardness and insert it there >> where it could, when it's worn, be easily changed and where the >> consistency would be more easily controlled. Is there a compelling >> reason not to do it that way? >> >> >> >> >> >> > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech_ptg.org/attachments/20090305/c89d7136/attachment.html>
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