Impact hammer for restringing

[Lance Lafargue]

I mostly worry about a pin driven in at a less than perfect angle,
enlarging the hole.  There is no room for this kind of mistake.  I also
don't want to scratch the plate with something that is too powerful..  I
envision a bull in a china shop scenario and don't want to negate the
quality/integrity of the tuning pin hole, or my plate finish.  Thanks for
any ideas.
Lance Lafargue, RPT
New Orleans Chapter
Covington, LA.
lafargue@iamerica.net

----------
> From: Greg Newell <gnewell@en.com>
> To: pianotech@ptg.org
> Subject: Re: Impact hammer for restringing
> Date: Wednesday, August 20, 1997 7:59 PM
> 
> On Wed, 20 Aug 1997 19:38:01 -0700, Tom Cole wrote:
> 
> >Lance Lafargue wrote:
> >> Is there an air driven (or electric) tool used to hammer pins in.
> >> Would this possibly mess up tuning pin holes?  It seems that I've
heard of
> >> some power tool being used.
> >> Lance Lafargue, RPT
> >> New Orleans Chapter
> >> Covington, LA.
> >> lafargue@iamerica.net
> >
> >Lance,
> >
> >I bought an air chisel a while back (when I used to have access to an
> >air compressor). It cost about $20 and came with a few different
> >chisels. I then cut a tuning pin punch in half, did the same with one of
> >the air chisel tools and had a welder join the front of the punch with
> >the back of the chisel tool.
> >
> >I only had a chance to string a few pianos with this rig before the
> >compressor and I parted company but I can attest to its speed (and
> >noise). I prewound a whole section of tuning pins, giving each a quick
> >tap to start each into respective holes, and after a suitable forest was
> >built, I started driving in pins close to ultimate height with the
> >modified air chisel. It took approximately 1 second per pin and, with
> >adequate ear protection, was not at all fatiguing.
> >
> >Hope you're not doing this in a mobile home park.
> >
> >
> >Thomas A. Cole RPT
> >Santa Cruz, CA
> >
> >
> 
> A gizmo is sold in mail order houses (other places too I'm sure) that
will drive nails and 
> I'm assuming tuning pins too.  It's called a palm grip nailer. Should
work don't you think?
> 					Greg
> Greg and Mary Ellen Newell
> Greg's Piano Forte`
> Lakewood, Ohio 44107
> gnewell@en.com
> 
>