Broads

[Carl Meyer]

Richard!!!! You do realize I meant to check the crown from the top.  I hate
to get down under the piano.  There might be ghosts down there.

Carl Meyer  Assoc. PTG
Santa Clara, California
cmpiano@attbi.com

----- Original Message -----
From: "Richard Brekne" <Richard.Brekne@grieg.uib.no>
To: <pianotech@ptg.org>
Sent: Wednesday, January 09, 2002 12:13 PM
Subject: Re: Broads


> Carl Meyer wrote:
>
> > Richard,  Several years ago I made a crown checker by taking a 2 foot
length
> > of 1 x 2 lumber, drilling a hole thru the two ends and middle across the
> > piece (perpendicular to the 2 foot length and parallel to the 2 inch
> > dimension.  Use three 6-8 inch pieces of brass or steel threaded rod
(8-32
> > or so).  With two nuts put the rods at the ends sticking down  and the
> > center one with two wing nuts.  Now set it on your table saw or other
flat
> > surface and adjust the center for a straight line from end to end.  Now
you
> > have a rocker gauge like the small one used to check down bearing only
> > larger.  Use this to check crown at any convenient spots.  Don't have to
lay
> > on your back, either.
> > Now you have some idea of crown with the strings still on.
> >
> > Regards
> >
> > Carl Meyer  Assoc. PTG
> > Santa Clara, California
> > cmpiano@attbi.com
>
> Now thats a neat idea Carl. But on this instrument you cant really acess
about a
> third of the length of the soundboard underneath. You can barely get you
arm in
> there under the right side where the "plate".  Still, I'll have another
look
> tommorrow and see if this would work. In any case I'd have to check off
the ribs
> as they criss cross each other.
>
> And in anycase... I am not really sure whether this instrument was made
with any
> real crown to begin with, and if so, how much ?
>
> Neat old job tho... going to be fun to see what I can get out of it.
> --
> Richard Brekne
> RPT, N.P.T.F.
> Bergen, Norway
> mailto:rbrekne@broadpark.no
>
>