Twisting bass strings (physics)

[Carl Meyer]

My gut tell me that the "arbitrary" twists should be in relation to the
length.  I once put 2 "arbitrary" twists on a 4' 1" piano and I think that
was excessive.  At the time I hadn't considered the length on the string.

I watched David Sanderson and the guys at Mapes wind bass strings back in 98
and I get just a little apprehensive when I realize that the tension is
related to a gloved hand and the mood of the hand owner.  That's why I hope
Arledge gets his system perfected.  It's so simple to build a servo
controlled tensioning system.  What's not so simple is "What is the optimum
tension of the core and the wrap during winding?"

The presence and number of twists would be affected by the manufacturer and
trial and error.  Hard to do since we now have been told that it takes
awhile for the string to acclimate.
Hmmmm. So many variables!!!!

Carl Meyer  Assoc. PTG
Santa Clara, California
cmpiano@attbi.com

----- Original Message -----
From: "Delwin D Fandrich" <pianobuilders@olynet.com>
To: <pianotech@ptg.org>
Sent: Wednesday, January 30, 2002 10:15 AM
Subject: Re: Twisting bass strings (physics)


> While we're on the subject, I've also wondered if these arbitrary twist
> amounts we so often read about--i.e., one twist, two twists, etc.--are
> supposed to apply equally to Aunt Matilda's Baldwin Acrosonic and to Uncle
> Martin's SD-10?
>
> Del
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