In a message dated Tue, 14 May 2002 4:40:18 PM Eastern Daylight Time, Roger Jolly <baldyam@sk.sympatico.ca> writes: > >>Agreed, but I don't care for off centered bores and would not exacerbate >the problem while tapering so I drill my own hammers and they are very >accurate. >>I don't understand, taking off equal amounts is in fact an exercise in >leaving the proper amount of hammer for weight control. >> >>David Koelzer >>DFW >> >> >Hi David, > An off centre bore will leave you with a heavy, and a light >side, humidity changes will make the hammer want to lean to the heavy side, >causing hammer/string fit to be erratic. It will also speed up centre pin >wear on the heavy side. Exactly why I work to keep the bore centered. Like I said I don't like off centered bores. > >To try and minimize some of these problems, I am experimenting with a new >jig to taper the hammers, so the mass reduction cut is made parallel to the >shank. On angled hammers, this will remove felt, from the back of the >hammer on one side, and the front on the others. The cut through the felt, >is only made to the bottom of the shoulder. > >Another advantage to this type of cut. Better hammer and back check >clearance in the bass. > >Regards Roger >Roger Jolly >Balwin Yamaha Piano Centres. >Saskatoon/Regina. >Canada. I would be interested in how you will pull that off, I too dislike dealing with clearance problems. David Koelzer DFW
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