The Oboe BBoard

The Oboe BBoard The C4 standard

New Topic | Go to Top | Go to Topic | Search | Help/Rules | Smileys/Notes | Log In

Re: John Mack on reedmaking

Author: jhoyla
Date: 2012-12-02 10:28

Disclaimer: I'm no pro, but I've been making successful reeds for 30-odd years.

Quote:

Is that the goal.... tight enough to seal at tie-off point and no more? I usually have good seals there and my issues are always flaring blades so that I have leaks up very high.

That is the goal as far as the wrapping is concerned. the seal up the sides is a function of several different factors:

1. The shape. The more flared [i.e., broad tip (~7.1mm), narrowing sides down to the staple throat] the better it will seal. I realize this is a gross oversimplification, but the thought-experiment of what happens if the reed sides are parallel and then curve inwards, seems to show that a shallow V-shape will seal better than parallel sides.

Note: I am making no judgments about tone here. I am only referring to strength of seal down the sides.

2. The curvature of the throat of the staple. The staple imparts the edges of the cane with a twist through almost 90 degrees, and this twist gradually unwinds to the tip. The rounder the oval at throat, the more twist is imparted. Probably has more effect closer to the binding.

3. The conical shape of the staple angles the blades together. The flatter the oval, the greater the angle (viz. point 2, I think this has more effect closer to the tip).

So, getting that perfect seal all the way up is a complicated business and probably needs a lot more thought - but choice of staple and shape are critical factors, together with tie-on length and tension

Reply To Message | Avail. Forums | Flat View

Newer Topic | Older Topic

Topics

Author

Date

John Mack on reedmaking new

jhoyla

2012-11-25 09:05