Riblets

Porritt, David dporritt at mail.smu.edu
Mon Sep 24 09:01:36 MDT 2007


The Journal, Terry.  It's a paper thing that comes in the snail mail.

 

J 

 

dp

 

David M. Porritt, RPT

dporritt at smu.edu

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On
Behalf Of Farrell
Sent: Monday, September 24, 2007 9:34 AM
To: Pianotech List
Subject: Re: Riblets

 

----- Original Message -----  from Barbara Richmond, RPT

 

If you are going to make riblets, Darrell Fandrich has modified the
design (see picture)

 

Where do these go? Parallel to and in between ribs? Does the screw go
into the bridge? Are they glued on? In the picture, it appears the
center section on the table is not in the same plane as the two flat end
sections - it seems that if you crank this thing up to the bridge
bottom, you will tend to flatten out the soundboard - or am I not seeing
things correctly?

 

--he reported to me that by stepping off the back 

 

What do you mean by stepping off the back? The three flat sections
rather than one continuus flat face?

 

they perform better than the originals (with the curved back).

 

The original what? Are these things replacing ribs? Or are they
additional small ribs? Sorry, I must have missed something somewhere.

 

Terry Farrell

 

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