help now, SVP

[Mark Cramer]

Thanks for sharing your method with us Newton,
Mark 



-----Original Message-----
From: owner-caut@ptg.org [mailto:owner-caut@ptg.org]On Behalf Of Newton
Hunt
Sent: Wednesday, September 13, 2000 8:58 AM
To: caut@ptg.org
Subject: Re: help now, SVP


Repinning process I use.

The action is ready to install for final tuning and voicing.

Clear a space for working.

Get and lay out the following tools;
	power screwdriver
	supply of 20 to 22 pins and place in spray can tops or cut
down coffee cups.
	pin press, cutters, Mannino reamers, screwdriver, small
files, Protek
	travel tape (brown lick & stick)

You must maintain hammer spacing and traveling at all times
so first remove eight or ten flanges (numbered of course),
put a small drop of Protek on each bushing and lay them out
in a nice line.

Use your favorite means of pushing out the pins.

First find the pin the fits into the flange.  It should be
tight enough that the point will stick in the wood but not
so large that it will not stick with strong finger pressure
and not so loose that you can actually get it into the hole.

Test the fit of that pin in the bushing, BOTH, and ream the
felt as needed for a firm fit that is the same in both sides
and consistant with the amount of swing you wish to have. 
This will take several pinnings until you get it right for
the section you are working in but so that you get fewer
swings than you wish.  Each bushing must be burnished to
back down the wool fibers and not so severely as to compress
the felt to it will spring back later, again this is a
"feel" job. I like to rotate the pin around at an angle to
the axis even after using the burnisher.  You can test for
swings by holding the pin with pliers at the _pointed_ end
so as not to score the pin.

Test the fit of the flange in the fork to make certain the
two do not bind together and carefully file to make them
free but not so much as to cause more than about .007" side
movement.  Care must be taken to hold the parts as if they
are pinned to prevent binding and filing too much.

Push the pin in, carefully, all the way through and test it
before clipping the pin.

If the test is ok then clip the pin and go to the next one
until all are repinned and your spacing and traveling are
the same.  

Setting the friction at this pivot is far more critical to
touch then any other center so consistency is absolutely
essential.  That is why I do it as a last thing before the
final voicing and tuning before locking it up.

Your details will vary according to your tools, your set up,
your goals and sense of feel but whatever consistency is
essential and THAT is why I prefer to do it myself.

		Newton