consistent downbearing measurements

[Joe And Penny Goss]

Hi Ron,
You are correct, we need stilts on the laser to lift it above the rim. any
target that would be available and stationary might then work.
Only problem would be working out the math of the reading as to what it
ment.
Joe Goss
imatunr@srvinet.com
www.mothergoosetools.com
----- Original Message ----- 
From: "Ron Nossaman" <rnossaman@cox.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Wednesday, June 02, 2004 9:15 PM
Subject: Re: consistent downbearing measurements


>
> >Humm,
> >why would not a laser set on the string pointing at the rim, first
> >measurment on the speaking length and the second reading on the tail with
> >the laser pointed at the same target.  Bypass the bridge all together.
> >Just thinkin,
> >Joe Goss
>
> Interesting idea, Joe. Getting enough distance between the laser and the
> target might be tough, unless you bounce it off a mirror to the ceiling,
or
> to the opposite corner of the case. The longer the baseline, the more
> accurate the reading. You'd have to get the increments bigger than the
> laser dot, and a scale calibrated for that particular baseline distance.
> That's where reflecting to the ceiling (and back down to the scale, where
> it is reachable and can be positioned for zero) might be handy. A tad
> cumbersome for field evaluations though...
>
> Ron N
>
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