The Clarinet BBoard
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Author: Mohammeddisto
Date: 2003-06-13 16:07
hmm...what would happpen if i put a piece of 800 grit wet/dry sandpaper over a piece of plate glass and use that to dry my reeds instead?
Would they dry more evenly and warp less than if i put them directy on flat, non-porous glass?
Would I achieve a similar effect to the Doctor's Thirsty Reed Pad at http://www.doctorsprod.com/accessories2.html
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Author: Tim P
Date: 2003-06-13 17:07
I have not seen Doc's pad in person but......
it is supposed to be ceramic. similar to sand paper yes. but...
moisture would migrate out of the reed toward a dryer surface, such as the sandpaper and pad since moisture moves from wet toward dry. once the pores of the sandpaper are equally as moist as the reed then the migration would stop. this would happen fairly quickly since there is not much pore space in the very thin layer of sand.
the ceramic pad has lots more pore space since the pad has some depth to it. My thoughts would be that the pad could absorb way more moisture while providing a flat surface and continue wicking it away.
Hey doc.
correct me if I am wrong
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Author: Henry
Date: 2003-06-13 17:22
Yes, Tim, you are right. Plus, it is unlikely that sandpaper will be as flat as a nice piece of ceramic. This could give rise to warping.
I'm a doc but not THE doc. I don't have his pad, so I don't know what material he is using. But I would think that a nice flat slab of alumina (aluminum oxide) would be ideal for the purpose. I have used these in the laboratory for wicking experiments. At the time, I obtained the material from a ceramics manufacturer. Shouldn't be too difficult to locate.
Henry
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Author: Tim P
Date: 2003-06-13 17:42
several piecesof paper??? no
1- not a flat
2- not near a porous.
now if you took lots of paper and stood them on end. cut it very flat then lay the rred on the top shuld wick OK. never get flat though.
___reed
lllllll
paper on bottom
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Author: L. Omar Henderson
Date: 2003-06-13 18:12
Good points by Henry and Tim (Disclaimer - I sell Thirsty Reed Pads).
Design of a reed drying device should include a "perfectly" flat surface that has moisture wicking abilities (pore size and water holding properties of the material) and enough mass to transfer the absorbed moisture into so that wicking will continue and leave the body of the absorbent material at a moisture content (not RH because this refers to air usually) that you want the "dryed" reed to reach.
The reed will equilibrate to the moisture content of the total environment (the relative humidity of the air above the reed and the moisture content of the material on which it contacts and the relative flux (movement) of water in these two mediums. If the reed drying device is of sufficent mass and beginning with a low moisture content it will dry reeds below the air RH (until the mass of the absorbent material has equilibrated to the RH in the air). There is a certain mass (depending on the material) which is necessary to dry reeds in the usual air environment of 50-75% RH. You do not have a problem with the material if the RH is below 50% but if the air RH is above 80% then the material must be stored in a dry environment in order to work properly.
Reeds do not warp (see previous posts on reed drying on glass) as much in high RH (from my own experiments), possibly because moisture from the reed escapes more slowly and the difference between the part in contact with impermeable glass and the air (of course in high RH the reed does not really dry and may grow mold) is not great.
In order to dry reeds thoroughly (with an active wicking material) you must have a material with the right mass and suitable composition and qualities.
The Doctor
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Author: Morrigan
Date: 2003-06-15 11:10
I recently got the Doc's thirstry reed pad.
It's good, and I've noticed an improvement and more stability and consistency in the reeds I hold in it, however, my favorite and what I save for my 'best' reeds is my Reed-Mate. Not sure where to get them or exactly how they work, they're just amazing!
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Author: BobD
Date: 2003-06-15 15:02
I recently got the new vandoren 8 reed plastic holder and like it
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