No subject

[Michael Spreeman]

Terry,
 
There's been ample quality input about your agraffe dilemma.  But if you are determined to make corrections by changing string heights, I thought I'd offer a coupld of alternatives.
 
You could consider removing material from the plate instead of the agraffes. The attached photo shows two counter bores with centering pins which I use for leveling agraffes. The centering pin keeps the counter bore perfectly centered in the agraffe hole.
 
You could also consider installing a V-bar insert which would require meticulous recording of the original V-bar location, grinding the original V-bar down to the exact diameter of a new V-bar rod, and then shaping and attaching the new V-bar to the plate.  Each of these steps opens the door to extensive conversation and controversy on the list: how to measure and document the location of the original V-bar, grinding the plate (are you SERIOUS!!), what type of material to use for the new V-bar, how to affix the new V-bar, and on and on.  I thought I'd throw it out here to shake things up, rattle a few cages,  and give everyone something to debate for bit.
 
BTW,, Major Kudos to Terry for the exquisite manufacturing of the laminated bridge bodies shown in the May Journal article about the Ravenscroft!  That's right,, both of those bridge bodies were "hand crafted" by non-other than our wonderful Terry!
                Michael C. Spreeman http://www.spreemanpianoinnovations.com
_________________________________________________________________
Create the ultimate e-mail address book. Import your contacts to Windows Live Hotmail.
www.windowslive-hotmail.com/learnmore/managemail2.html?locale=en-us&ocid=TXT_TAGLM_HMWL_reten_impcont_0507
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20070525/486583c8/attachment-0001.html 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: counter bores.jpg
Type: image/pjpeg
Size: 98921 bytes
Desc: not available
Url : https://www.moypiano.com/ptg/pianotech.php/attachments/20070525/486583c8/attachment-0001.bin