Saturday, February 6, 2016

The Reed Morgue

Forensic Science has gotten a lot of interest lately in the form of television shows and novels featuring intrepid pathologists solving gruesome criminal cases.

While reed making cannot compare in drama and ratings to these shows, we can learn a few things by examining reeds that are no longer viable.

From time to time, I take apart old reeds that were exception when they played to examine my scraping technique.



Except along the spine, it is not possible to measure the rest of the reed blade accurately when assembled.  Therefore, I find it very instructive to take apart old reeds and measure each blade.  You can learn much about your scraping tendencies.  Being right handed or left handed can make you favor one side of the reed or one area over another. 

Since symmetry in measurement is the most important principle in reed making, becoming aware of your tendencies and adjusting for them in future reed making sessions can improve your reed making.

Below are two reeds that I thought very highly of and used in many performances.  Measurements that differ from top blade to bottom by .001” or .002” are negligible and do not need correction.  However you will notice that I tend to leave the back of the right rail thicker than the left on three of the four blades.  This would be something to correct for in future scraping.  


PROFILED BLANK

(English measurements)


Left Rail
Left Channel
Center
Right Channel
Right Rail
Tip
.013
.013
.013
.013
.013
1/8”
.021
.021
.021
.021
.021
¼”
.023
.023
.023
.023
.023
3/8”
.026
.026
.026
.026
.026
½”
.028
.028
.028
.028
.028
5/8”
.030
.030
.030
.030
.030
¾”
.033
.033
.033
.033
.033
7/8”
.035
.035
.035
.035
.035
1”
.038
.038
.038
.038
.038




FINISHED REEDS


REED #1

TOP BLADE


Left Rail
Left Channel
Center
Right Channel
Right Rail
Tip
.009
.008
.010
.006
.005
1/8”
.012
.011
.015
.011
.008
¼”
.014
.014
.020
.014
.010
3/8”
.018
.018
.023
.018
.015
½”
.018
.021
.025
.021
.022
5/8”
.018
.023
.028
.024
.025
¾”
.021
.024
.030
.026
.028
7/8”
.023
.028
.032
.027
.031
1”
.027
.029
.034
.029
.034


BOTTOM BLADE


Left Rail
Left Channel
Center
Right Channel
Right Rail
Tip
.007
.008
.009
.007
.005
1/8”
.008
.012
.015
.011
.007
¼”
.010
.016
.020
.014
.010
3/8”
.014
.017
.023
.017
.013
½”
.016
.020
.026
.020
.018
5/8”
.017
.023
.027
.022
.022
¾”
.022
.026
.030
.025
.025
7/8”
.024
.028
.033
.028
.030
1”
.025
.030
.035
.030
.035










REED #2

TOP BLADE


Left Rail
Left Channel
Center
Right Channel
Right Rail
Tip
.007
.006
.009
.006
.005
1/8”
.009
.011
.014
.010
.007
¼”
.011
.016
.020
.016
.011
3/8”
.016
.020
.025
.021
.016
½”
.020
.021
.026
.023
.021
5/8”
.024
.021
.027
.026
.024
¾”
.027
.023
.030
.028
.028
7/8”
.029
.025
.032
.028
.031
1”
.029
.026
.033
.030
.035



BOTTOM BLADE


Left Rail
Left Channel
Center
Right Channel
Right Rail
Tip
.005
.008
.010
.008
.006
1/8”
.006
.010
.015
.010
.007
¼”
.010
.016
.020
.017
.012
3/8”
.013
.020
.024
.020
.017
½”
.017
.022
.026
.022
.022
5/8”
.020
.023
.027
.023
.024
¾”
.023
.024
.028
.024
.026
7/8”
.027
.025
.029
.025
.031
1”
.030
.028
.031
.027
.033










AVERAGE CANE REMOVED FROM EACH AREA
(From profiled blank to finished reed)


Left Rail
Left Channel
Center
Right Channel
Right Rail
Tip
.006
.005
.003
.006
.008
1/8”
.012
.010
.006
.011
.014
¼”
.012
.008
.003
.008
.011
3/8”
.011
.007
.002
.007
.011
½”
.010
.007
.002
.006
.007
5/8”
.010
.007
.003
.006
.006
¾”
.010
.008
.003
.007
.006
7/8”
.009
.009
.004
.009
.004
1”
.010
.010
.005
.010
.005


AVERAGE CANE REMOVED FROM RAILS AND CHANNELS (Average of left and right sides)


Rails
Channels
Center
Tip
.007
.006
.003
1/8”
.013
.011
.006
¼”
.012
.008
.003
3/8”
.011
.007
.002
½”
.009
.007
.002
5/8”
.008
.007
.003
¾”
.008
.008
.003
7/8”
.007
.009
.004
1”
.008
.010
.005