[pianotech] re. Small vise grips for mass loading

[johnparham at piano88.com]

Thank you, David.

- John Parham

> -------- Original Message --------
> Subject: Re: [pianotech] re. Small vise grips for mass loading
> From: David Andersen <david at davidandersenpianos.com>
> Date: Fri, November 26, 2010 10:52 am
> To: pianotech at ptg.org
> 
> 
> I use two techniques to assess soundboard life, along with more "normal" tests such as measuring crown with a gauge or bearing sticks, or measuring crown with a straight edge between the strings or a string along the longest rib on the underside: plucking strings in every section and listening to the sustain, power , and resonance, and thumping the board from underneath with the "meat" end of my closed fist and doing the same thing. Your ears are truly your best tool....
> DA
> 
>  
> On Nov 26, 2010, at 6:54 AM, <johnparham at piano88.com> wrote:
> 
> > Jim and List,
> > 
> > Thanks for verbalizing this technique.  I was exposed to it several
> > years ago and use it fairly frequently.  I have no idea how widespread
> > this idea is.  Without overstating the obvious, I wonder if it is worth
> > posting in TT&T (I'm always looking!)  
> > 
> > More interestingly, I wonder if there are other simple, handy techniques
> > that other technicians use when collecting diagnostic information about
> > the soundboard variable?
> > 
> > Ideas?
> > 
> > Happy Thanksgiving to all,
> > John Parham, RPT
> > Hickory, NC
> > 
> > 
> >> -------- Original Message --------
> >> Subject: Re: [pianotech] re. Small vise grips for mass loading
> >> From: jimialeggio <jimialeggio at gmail.com>
> >> Date: Tue, November 23, 2010 1:53 pm
> >> To: joegarrett at earthlink.net, pianotech at ptg.org
> >> 
> >> 
> >>> 
> >>> I can see these CHEAP knock-offs being used for the mass loading 
> >>> thingee or perhaps holding the clutch linkage of your 1958 
> >>> International Truck, but to use those pieces of junk for anything else 
> >>> would be a real travesty.
> >>> 
> >> True...complete agreement...however,it just aint worth a serious tool 
> >> investment to have a number of duplicate expensive single purpose grips 
> >> sitting unused in the toolbox most of their lives.  Sometime junk has it 
> >> uses.  These are junk, but in this case I think junk is just fine...one 
> >> just needs to keep their expectations appropriately low.
> >> 
> >> Jim I
> >> 
> >> 
> >> 
> >> -- 
> >> Jim Ialeggio
> >> grandpianosolutions.com
> >> 978- 425-9026
> >> Shirley, MA
> >