[pianotech] Lowering the stack on a Steinway

[John Ross]

I got a slab from a monument place, for free.
It had obviously broken when they were making a gravestone. It is about 9" X 18" X 1 1/2".  3 sides are square and the third side broken.
I don't know what kind, but it is flat and heavy so it doesn't move. Might be marble.
It would have just gone in their trash.
Not long enough for an action, but good when a flat surface is needed when sanding to true a surface.
John Ross
Windsor, Nova Scotia

On 10-10-2012, at 10:54 AM, Euphonious Thumpe <lclgcnp at yahoo.com> wrote:

> 
> I have an extremely thick piece of plate glass on a flat as I can make it workbench (a granite slab would be even better ) for various tasks. The stack could be set on something like this, checked for wobble and under-feet gaps, and errantly tall feet filed down until all level, non? ( I generally use this for cutting felt strips on, and for gluing operations where an easy-to-clean surface is a help. For the felt cutting operation, by the way, I use the cheap strips of vinyl base-board molding available at home improvement centers --- at about $2 each --- with an aluminum straight edge clamped across everything, and the wheel type cutter.)
> 
> Thumpe
> 
> From: Ron Nossaman <rnossaman at cox.net>; 
> To: <pianotech at ptg.org>; 
> Subject: Re: [pianotech] Lowering the stack on a Steinway 
> Sent: Wed, Oct 10, 2012 1:42:41 PM 
> 
> On 10/10/2012 5:56 AM, Ed Foote wrote:
> 
> > The treble end
> > doesn't allow this, so if you need a guide there, use a small Forstner
> > bit. (now that I think about, a Forstner in a drill press might be the
> > best way to lower all the cleats!).
> 
> That was my first take.Bore depth guides, removing as much material as possible, and chisel/shim to fit. That's assuming the stack is uniformly high throughout, or making allowance at each individual bracket. A fair amount of time spent in any case.
> Ron N

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