 The Oboe BBoard
|
Author: RobinDesHautbois
Date: 2010-07-13 11:34
How did you dis/like the single vs double radius? I think I'm getting a similar result by reshaping the blade manually.
Rough cane (inside) is due to a few things:
1. the cane closest to the bark is more densely packed than the inside and therefore smoother; plus the pressure of the knife and stroke movement don't cut the same way as the gouger - which is just a really complex woodworking plane.
2. gouging is not a smooth process: it litterally rips the grains off the inside, especially if the blade is set to produce a thicker shaving. When the cane is wet, grains will sometimes give way (microscopically) and give that not-smooth feeling. When the cane dries, other grains will "bounce back", so you can tell density by rolling the inside on your thumbnail.
3. commercial producers may not have time to resharpen the blade as often as one would like: sharpening the blade means recalibrating the machine every time!
My own experience, is that SOME things need not be as precise or perfect as people often complain about. Our measuring instruments are precise to 0.01mm (a few thousandths of an inch), but cane is a "living" material, not rigid like aluminum and therefore behaves "as it wants to" from piece to piece.
"Trends" are more important than final measurements. For example, with shapers, if the tip has 0.02mm more or less than another tip, it is not such a big deal, but the effect of that difference on the curvature does contribute to the reed's behaviour. The overall silouhette is more significant than the measurement.
For gouging, it's the rate of thinning between the inside curve and outside curve that makes a difference. When the cane is shaped, a lot of that thinning rate is lost below the middle of the silouhette. Perhaps someone can do a combined Ph.D. (music and applied science) and clarify this riddle, because I think a lot of us are "winging it" by trial and error.
Robin Tropper
M.A.Sc., B.Mus., B.Ed.
http://RobinDesHautbois.blogspot.ca/music
|
|
|
mjfoboe |
2010-07-12 14:54 |
|
cjwright |
2010-07-12 16:46 |
|
RobinDesHautbois |
2010-07-12 20:35 |
|
cjwright |
2010-07-12 23:02 |
|
RobinDesHautbois |
2010-07-13 00:30 |
|
cjwright |
2010-07-13 00:58 |
|
RobinDesHautbois |
2010-07-13 11:56 |
|
RobinDesHautbois |
2010-07-12 19:10 |
|
jhoyla |
2010-07-13 08:02 |
|
RobinDesHautbois |
2010-07-13 11:34 |
|
jhoyla |
2010-07-13 13:42 |
|
RobinDesHautbois |
2010-07-13 14:25 |
|
jhoyla |
2010-07-14 07:00 |
|
RobinDesHautbois |
2010-07-14 12:11 |
|
jhoyla |
2010-07-15 06:27 |
|
The Clarinet Pages
|
 |
.jpg){kind=small}
