Well, Dave, such a lapping difference of a few thousandths, well , why lapping different, if the same "loseness" is achieved by just different screwing of the back screw. The valve body (mainly a cylinder, but taper for 1 or 2 degrees) fits into the valve like a glass stop into the glass bootle (caraffe). Pushing it less verse the bottom (by the back screw), leaves the valve looser a bit. But there are myths within the community of brass players ...... many myths .... most of them used as a cheap excuse for ones own failure ore difficulties. Brass makers live on these myths. Why not ? Customer demand is like an order. ....................................................
<[EMAIL PROTECTED]> schrieb: > -- > [ Picked text/plain from multipart/alternative ] > In a message dated 11/26/2002 12:02:34 PM Eastern Standard Time, > [EMAIL PROTECTED] writes: > > > > > > I doubt, please admit my doubt, if professionals get the valves lapped > > looser to have better slurs, if professionals (like myself) getting > > disturbed just if the valve closing is out of the markings for just a > > quarter of a millimeter (1/100 of an inch), if other people run crazy if > > the spare mouthpiece has a bore just different for a tenth of a millimeter > > or if the inner rim diameter is narrower for 0,5 millimeters (2/100 of an > > inch). > > > > Yes, I agree with you about the tightness of valves in general, however there > are just such players who want valves lapped looser in the casings. And of > course, by that I mean by perhaps an extra thousandth or so of an inch. I > don't know anyone who wants loose bearings. The bearings should be as > perfect as possible. > > Dave Weiner > _______________________________________________ > Horn mailing list > [EMAIL PROTECTED] > http://music.memphis.edu/mailman/listinfo/horn > -- Prof.Hans Pizka email: [EMAIL PROTECTED] tel.: +49 89 903 9548 - www.pizka.de (horn site) with connections to www.pizka.de/Pizka-music.html (publications) - www.pizka.de/PizClasHr.htm (instruments, mouthpieces) www.pizka.de/PizWrHorn.htm (Viennese Horns) - www.pizka.de/mpiece.htm (mouthpieces) www.pizka.de/Pizka-travel.htm (pictures, stories, experiences from my travel) - open soon mail is virus checked _______________________________________________ Horn mailing list [EMAIL PROTECTED] http://music.memphis.edu/mailman/listinfo/horn
