G’day Chiffers,
I’m restoring an early 20th century (?) Boxwood Flute in the key of C made by Bilton in London…This is a tiny little thing with a bore of aproximately 11 mm in the headjoint..
Can y’all advise me how far from the centre of the embouchure I should put the stopper ?
Thanks and regards from OZ …
set it at one diameter and then putz about with it from there 'till ya find a place that ya like…
Thank you Denny,
Splendid service,as usual. 
…
just keep to the easy ones 
Denny is right, of course, and as per usual But I would add a couple of other elements here. I have a piccolo, which with the appropriate slide extension will play at A=440Hz. It has a slide diameter of a smidgeon under 11 mm. I have found that both the seal and facing surface of the cork are critical for easy speaking. Grease up the cork well, and endeavor not to mar its face.
Bob
well, at least ya stopped shy of gluing a coin to the sucker
Denny wrote:
well, at least ya stopped shy of gluing a coin to the sucker >
Ya know, I tried that with one of my crumby old Nach Meyers. . .a Roosevelt dime if I remember correctly. It helped a little, but it could’ve just been the dried out and messed up cork, and anything would’ve helped.
Bob
You can also fine tune the cork placement, by checking the upper first and second octave notes, if the second octave is sharp, you need to move the stopper farther away from the embouchure hole. We are talking about a mm or two…
Second octave sharp relative to what? Medium D sharp compared to low D? to G? …
Jon means: If the octaves are too wide when you overblow the left hand (upper) notes from the first octave to the second octave, then try moving the cork further back.
Thanks again folks..
I imagine that with a small bore Flute (Piccolo ?) like this one,adjustments to the cork position will be very fine..
The more I fiddle with this little gem,the more i like it 
.
weedie wrote:
The more I fiddle with this little gem,the more i like it >
> .
Well, um, er, yes. . .when the cork is right and tight on my little German (Viennese?) piccolo it is quite fun to play. . .and of course I’m having a good embouchure day. It has a very refined voice. . .not nearly as full throated as for example one of Jem’s “Little Black Beauties” or I should imagine Terry’s optimized folk piccolo. . .since they both have relatively larger bores. That extra 1-1.5 mm really makes a difference.
Bob
An Seanduine…got me a beauty there mate ..