Klarinet Archive - Posting 000835.txt from 2000/09

From: David Renaud <studiorenaud@-----.com>
Subj: [kl] Correct measurments/Evolution reeds
Date: Tue, 26 Sep 2000 11:20:16 -0400

Guy Legree very gently pointed out confusion
with my measurement in a private post. Upon review
I realized the machine was set up so 0=200 thousandths
when the dial spins around twice 200 thousandth reads 0..
I had never used this device in this manner before.
Bridge bearing never give reading that cause more then
one spin .100.

So if I subtract this offset of .200 I obtain the correct
readings in thousandths of inches. That will teach me to
try to use a new measuring technique while rushing
out the door to a gig.

These are correct: .001 of an inch.

taken over back of reed, uncut blank area
over table:

Regular V12 Evolution
.113 .124 .117
.110 .126 .119
.108 .125 .118

Taken at a pencil mark made 1 cm from tip to .001 inch.

.124 .127 .125
.123 .126 .125
.124 .127 .125

David Renaud wrote:

> Evolution's are the same length as V12.
> They are slightly less thick at the back then V12,
> but thicker then regular Vandorens.
> The tip has increased curve on the corners.
>
> As for measurements,
> Here are some specs, as best I can tell with the
> equipment I have..
>
> I am using a downbearing gauge used to measure bridge
> bridge downbearing in a piano.
> Measuring reeds off a flat piece of glass.
> Accurate to a thousandth of an inch.
> Inaccuracy may result from not holding the device
> perfectly perpendicular to the reed. Also the pencil
> mark 1 cm from the tip was made with ruler and eye.
>
> Taken from three random samples of each type reed.
> Measuring thickness at the back to.001 inch
>
> Regular V12 Evolution
> 313 324 317
> 310 326 319
> 308 325 318
>
> Measuring at pencil mark made 1 cm from tip to .001 inch.
>
> 224 227 225
> 223 226 225
> 224 227 225
>
> >From this limited survey I would anticipate finding the evolution's
> quite consistant. There appears to be much more variation in
> the regular reeds.
>
> Any other measurements you would like me to attempt?
>
> Cheers
> David Renaud
>
> David Blumberg wrote:
>
> > Are they longer then the regular Grand Concert Reeds?

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