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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>
<A title=Richard.Brekne@grieg.uib.no
href="mailto:Richard.Brekne@grieg.uib.no">Richard Brekne</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A =
title=pianotech@ptg.org
href="mailto:pianotech@ptg.org">Pianotech</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> January 19, 2003 2:27 =
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Regulation bench
bedding</DIV>
<DIV><BR></DIV>A bit late on this one for sure, but...
<P>I saw a jig for bench regulating once at Vintage Pianos (I think =
they were
called) in the north Seattle area that one of the Fandrich boys put =
together.
It was set up if I remember so that you could pretty faithfully =
re-create the
key bed and get really good bench regulating results.
<P>Maybe Del can say something about this, or even perhaps provide us =
with a
picture of said. ?? </P></BLOCKQUOTE>
<P dir=ltr><FONT face="Comic Sans MS" color=#000080></FONT>
<P dir=ltr><FONT face="Comic Sans MS" color=#000080>I've used two =
benches set up
for regulating. One was based on a 1-1/2" maple slab, =
thickness-planed a
dead flat as I could get it. Cross-grain slip-ribs were used across the =
bottom
to keep it flat. The bench I use now is based on a maple/alder laminate =
with a
heavy maple rim. The top surface has a thick layer of epoxy. The edges =
were
built up about two or three mm above the bench surface and epoxy =
flowed in
and leveled out. The bottom surface is also epoxy coated. It's flat and
stable. Along the front edge are Steinway style center-rail =
keyframe
bedding screws on 200 mm centers adjustable from the bottom. =
</FONT>
<P dir=ltr><FONT face="Comic Sans MS" color=#000080>The action is =
bedded in the
piano and key dip set as accurately as possible. The action is =
transferred to
the bench and the bench bedding screws are adjusted up to duplicate the =
keydip
specification on the bench. Most keyframes will set up this way.
Occasionally there is one in which the keydip will be shallow on the =
bench in
which case a 1 mm veneer is placed under the balance rail. </FONT>
<P dir=ltr><FONT face="Comic Sans MS" color=#000080>It's not =
perfect but it's
close and I'm past the point of wanting to do all my regulating in the
piano.</FONT>
<P dir=ltr><FONT face="Comic Sans MS" =
color=#000080>Del</FONT></P></BODY></HTML>