[pianotech] Double loop German stringing

[William Truitt]

Hi Conrad:

I used to have a loop making machine, but it is easy to overstress the wire
making the loop (at least that was my experience lo these many years ago),
and have them break.

I simply use an appropriately sized nail or pin bent into the shape of an L
and tacked into the side of my workbench.  My suggestion is to practice
making 20 or 30 loops before you make them for real for the Schimmel.  Make
the loop, snip it off at the end, make another, etc. etc.  You won't use
that much wire, and I think you will be surprised how quickly you learn to
make a very nice and consistent coil. 

Will Truitt

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Conrad Hoffsommer
Sent: Friday, May 22, 2009 9:28 AM
To: Pianotech List
Cc: College and University Technicians
Subject: [pianotech] Double loop German stringing

Folks,

We recently acquired a well used Schimmel grand which will need almost
everything. (Yes, it was also very cheap)

When the time comes to restring, I'll be faced with 68 unisons of
individual strings. It has the German style loops with a double wrap
around the hitchpin.  I've got no problem doing the single wrap slip
knot, and I'm sure I could figure out a way to make the doubles look
good, but as I'm not into reinventing the wheel, I wonder how others
have dealt with this.

Do you make up a jig, just use a nail on the workbench, or what?

-- 
Conrad Hoffsommer, RPT - Keyboard Technician
Luther College, 700 College Dr.,
Decorah, Iowa 52101-1045
1-(563)-387-1204 // Fax 1-(563)-387-1076