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<P><FONT size=2>Look at the photo below: <BR> <IMG height=640
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<DIV><FONT size=2><FONT face="Comic Sans MS" color=#000080 size=3>You cut the
bass bridge body off of the cantilever. Flush. Sand the cantilever smooth and
cap it with a piece of maple veneer of the thickness of the saw kerf (to keep
the original o/a height of the bridge assembly). </FONT></FONT></DIV>
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<DIV><FONT size=2><FONT face="Comic Sans MS" color=#000080 size=3>Move the
bridge body forward to the front edge of the cantilever, keeping the alignment
of the bridge the same as the original. You will be reducing the length of all
of the strings by the same amount. In this case it will be by about 25 mm.
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<DIV><FONT size=2><FONT face="Comic Sans MS" color=#000080 size=3>Through
roughly the upper half of the bass scale there will no longer be any cantilever
overhang. There will be some overhang through part of the lower half. Can't be
helped. </FONT></FONT></DIV>
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<DIV><FONT size=2><FONT face="Comic Sans MS" color=#000080 size=3>You'll need to
grind away a bit of that triangular-shaped plate filler just forward of the bass
end of the bridge body. No harm done, just do it. </FONT></FONT></DIV>
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<DIV><FONT size=2><FONT face="Comic Sans MS" color=#000080 size=3>Don't worry
that the end of the bridge seems to hang out there. You can glue a filler block
on the end of the cantilever if it makes you feel better. </FONT></FONT></DIV>
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<DIV><FONT size=2><FONT face="Comic Sans MS" color=#000080 size=3>Drill the
bridge pin holes deeper if need be. Pin as usual.</FONT></FONT></DIV>
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<DIV><FONT face="Comic Sans MS" color=#000080>Someone will have to do a new bass
string scale. Make sure whoever does it does it right; there is a lot of
weirdness going on with string scales these days. Use European loops on the
strings. </FONT></DIV>
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<DIV><FONT face="Comic Sans MS" color=#000080>You'll end up with better pitch
definition; there will be more energy in the fundamental. The overall all bass
sound will be a bit cleaner and clearer. No, you won't loose any
power.</FONT></DIV>
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<DIV><FONT face="Comic Sans MS" color=#000080>Del</FONT></DIV>
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size=3></FONT><BR><BR><BR>You <BR><BR>| -----Original Message-----<BR>|
From: caut-bounces@ptg.org [<A
href="mailto:caut-bounces@ptg.org">mailto:caut-bounces@ptg.org</A>] On<BR>|
Behalf Of Jim Busby<BR>| Sent: May 01, 2008 12:00 PM<BR>| To: College and
University Technicians<BR>| Subject: Re: [CAUT] Bass bridge, string scale,
cantilevered<BR>| bridge, tone<BR>|<BR>| Hi Dave,<BR>|<BR>| Ron would better
answer this, but what I did was take it as<BR>| close as I could w/o touching.
(Yes, I did leave a bit of the<BR>| cantilever. Ron is braver at plate
alterations than I.) Also,<BR>| make the strings with German loops and this
gives you an<BR>| effectively more flexible backscale. The conventional<BR>|
"French" loops are more rigid, and the German loops are equal<BR>| to about 20mm
more length, IMO. In fact, if you do nothing<BR>| more than change to German
loops you will see a noticeable<BR>| difference in the bass! Vince and I are
nearly always<BR>| changing to German loops now on most everything. With
the<BR>| last 3 Ms I left the bridge alone, switched to German loops,<BR>| and
was pleased.<BR>|<BR>| Jim<BR>|<BR>|<BR>|<BR>|<BR>| -----Original
Message-----<BR>| From: caut-bounces@ptg.org [<A
href="mailto:caut-bounces@ptg.org">mailto:caut-bounces@ptg.org</A>] On<BR>|
Behalf Of Porritt, David<BR>| Sent: Thursday, May 01, 2008 12:45 PM<BR>| To:
College and University Technicians<BR>| Subject: Re: [CAUT] Bass bridge, string
scale, cantilevered<BR>| bridge, tone<BR>|<BR>| Jim:<BR>|<BR>| Just a few
minutes ago I was looking at an "M" and the bass<BR>| bridge if it were brought
to the place where the cantilever<BR>| is attached to the board the lowest end
of the bridge looks<BR>| like it would be off the bridge root and rubbing the
plate. <BR>| What do you do with the last 4 unisons in that case?<BR>|<BR>|
dp<BR>|<BR>| David M. Porritt, RPT<BR>| dporritt@smu.edu<BR>|<BR>|<BR>|
-----Original Message-----<BR>| From: caut-bounces@ptg.org [<A
href="mailto:caut-bounces@ptg.org">mailto:caut-bounces@ptg.org</A>] On<BR>|
Behalf Of Jim Busby<BR>| Sent: Thursday, May 01, 2008 1:38 PM<BR>| To: College
and University Technicians<BR>| Subject: Re: [CAUT] Bass bridge, string scale,
cantilevered<BR>| bridge, tone<BR>|<BR>| Alan,<BR>|<BR>| Years ago when I had my
first class from Del he said that he<BR>| took a small grand, reduced the
soundboard area by 30-40%<BR>| (That's what I recall<BR>| anyway) reduced the
speaking length of the lower bass<BR>| strings, then actually had a BIGGER
sounding piano! The proof<BR>| was there to play. It just sounded like a
"bigger" sized<BR>| piano. The Ms I've done sound more like Ls, As or Os.
But<BR>| that, I guess, is just my opinion and the opinion of everyone<BR>| who
has heard them. Can't prove a dang thing...<BR>|<BR>| (AND DON'T WANT TO
ARGUE...<G>)<BR>|<BR>| Regards,<BR>| Jim<BR>|<BR>| -----Original
Message-----<BR>| From: caut-bounces@ptg.org [<A
href="mailto:caut-bounces@ptg.org">mailto:caut-bounces@ptg.org</A>] On<BR>|
Behalf Of Alan McCoy<BR>| Sent: Wednesday, April 30, 2008 2:18 PM<BR>| To:
College and University Technicians <caut@ptg.org><BR>| Subject: [CAUT]
Bass bridge, string scale, cantilevered bridge, tone<BR>|<BR>| Hi Jim and Ron
(and others),<BR>|<BR>| I do not have enough first-hand experience with
especially<BR>| short-scale instruments that have been recipient of the
kind<BR>| of treatment that the Brodmann thread was about, namely new<BR>|
string scale with a shorter speaking length, longer<BR>| backlength, no
cantilever. But I am curious about what kind<BR>| of tonal change I might
anticipate if I were to rescale, say,<BR>| a Kawai GE-1.<BR>|<BR>| Would
anyone be interested in describing what would be the<BR>| likely tonal result
with these changes to this short-scale<BR>| piano? I know words won't likely do
justice to it, but I'd be<BR>| interested to hear anyway.<BR>|<BR>| BTW, this
isn't idle curiosity.<BR>|<BR>| Thanks.<BR>|<BR>| Alan<BR>|<BR>|<BR>| -- Alan
McCoy, RPT<BR>| Eastern Washington University<BR>| amccoy@mail.ewu.edu<BR>|
509-359-4627<BR>| 509-999-9512<BR>|<BR>|<BR>|<BR>|<BR>|<BR>|<BR>|<BR>|
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