Open-Face Pinblock & Stringing

[Joe And Penny Goss]

Hi,
On the coil lifting tool, one should have different tips for the different
size tuning pins if you plan on doing a lot of restringing.
As I do very little, holding the tool firmly against the tuning pin gets me
by. But then that is one reason my tool is larger than the Schaff tool.


Joe Goss
imatunr@srvinet.com
www.mothergoosetools.com
----- Original Message -----
From: "Ron Overs" <sec@overspianos.com.au>
To: "Pianotech" <pianotech@ptg.org>
Sent: Thursday, January 02, 2003 5:17 AM
Subject: Re: Open-Face Pinblock & Stringing


> At 7:50 PM -0500 1/1/03, Terry Farrell wrote:
>
> >I have the coil tightening tool that has a weight on a shaft that
> >you bang upwards. I've only restrung a couple pianos with it, but it
> >seems as though the edges that should hook onto the coil have
> >rounded off and each time you bang the weight, it just jumps off the
> >coil. I likely bought mine from Schaff or APSCO. Is there a better
> >quality one available?
>
> We had the same experience with the impact coil lifter from APSCO.
> However, we had already built our own in-house tool prior to getting
> an APSCO tool. The APSCO tool is basically a good design, but the
> lifting lip is too soft and the tip needs to be thinned down at the
> top and bottom of the 'C' to allow easier access to some of the
> tighter tuning pin fields. If you get a local toolmaker to turn up a
> new tip from oil quenching silver steel you can harden it with an oil
> quench, and temper it until it just starts to turn from straw to
> blue. A good impact coil lifter is the only way to go.
>
> Alternatively, you could re-grind the lip of the original tip and try
> to heat treat it. But the success if this will depend somewhat on the
> analysis of the material used. If you've got a lath and a die grinder
> you could re-grind the lip without any trouble. For those who have a
> lathe but no die grinder, the grinder is a must for rebuilders. They
> are the best tool for the initial reshaping of the V bars prior to
> hardening. With mounted points they can do some wonderful work on the
> lathe, but you must remember to put newspaper over the ways to keep
> them free of grinding dust.
>
> Happy new year to all,
> Ron O.
> --
> _______________________
>
> OVERS PIANOS - SYDNEY
> Grand Piano Manufacturers
>
> Web: http://overspianos.com.au
> mailto:info@overspianos.com.au
> _______________________
> _______________________________________________
> pianotech list info: https://www.moypiano.com/resources/#archives