Reed Measurement for D Bass Regulator

[Fergmaun]

Want the Reed Measurements for D Bass Regulator to compare and try in my Andreas Rogge D wide bore full set

Cane tube outside dia
Slip length
Tail length
Head width
Head length
scrape length
Staple length by eye inside dia
How far staple in tails
Bridle placement and width
Over All length

All the best

Ferg

[geoff wooff]

It is Sunday so I'm not going to the workshop to find what my note book says on this subject... and it has been a while since I made a Full set in D...... so perhaps tomorrow if I get around to it.

BUT some of your dimension requests are redundant Ferg... if you know the staple length and the overal finished length of the reed you don't need to know how far into the tails the staple should be inserted...

Geoff.

[Ted]

You did not ask for staple i.d.. I like 9/64"for that.

[geoff wooff]

By consequence of only having four notes to play, and only in one octave (we hope), the Bass regulator reed is a far less demanding project to make than a chanter reed.

Here is my reed recipe , I had to go back to 1999 to find this in my notes of a D set made then:

Cane tube; 25-26mm ,slip length 115-120mm.

Finished head width ; 14mm, cresent shaped crossection 1.25mm thick in centre and virtually nothing at edges, sanded on a 47-48mm dia.roller.

Head length above binding: 30mm , width tapering from 14mm at tips to 13mm at binding.

Tails; concave shaped (not straight tapered) to a width of 3mm at ends.

Staple; 1/8" diameter x 54mm long. Rolled from 0.7mm Copper sheet , the fully annealed blank is 11 wide at 'eye' end and 12 wide at the other. Though you can use a tube or different diameter as you wish... see note below.

Eye of staple 1.2- 1.3mm x 4- 4.3mm ; Remove all sharp edges, inside and out!

For assembly it may be necessary to gouge out the tails a little but firstly check if there is enough space to insert the staple without undue opening of the tails...

Finished length of reed 85mm.

Head scrape: 15-17mm long in a definate U shape ( not Vee)

Sucked pitch: about G.

Control Collar : from 0.7mm Copper 3-4mm wide ( again anneal it fully) .Sits just beneath the scrape area.

Note on staple diameters:

In a chanter the staple diameter can be used as part of the control of correct Octaving.... " if the staple diameter is too large the upper octave will be too sharp in pitch"..... well, I notice that in fact the staple diameter has more of an effect on the lower octave so that this statement could end "..... the lower octave is too flat". Therefore it follows that the internal diameter of the staple can be adjusted to correct the overal pitch of a regulator.

For a Regulator that is too flat , try a smaller staple diameter and vice versa.

Geoff.

PS; the reed given here was made for a Narrow Bore D set but the regulators on my NBD's are hardly different from those on the wide bore types.

[Fergmaun]

Hi Geoff

Thanks for the D bass reg reed measurements.

I will write the dimensions into my reed making note book.

I had not good luck with the correct reed working for the "D" Rogge bass reg as been using the set as a set 3/4 because I have the detachable bass reg.

Dia for my D Bass reed I made from 6 June 2013.

Slip Length 100 mm
Head width 14.5 mm
Head length 28 mm
Staple length 58 mm
Scrape length 22.5 mm
Tails length 25 mm
Tails gouged with No: 6
Sanding Block Cure of 82 mm width is around 53.5 mm
Bridle next to binding 3-4 mm width copper sheet 0.50 mm thickness
Binded Waxed Polymide up to 22 mm length
Over all length 88- 90 mm

I have made one D bass reed 6 June 2013 and a few days ago I had a look at my reed as was leaking air so unbound reed and sanded the inside on the 82 mm block rebound reed and added new copper bridle.

This reed sounded great when tested when blown though the reg by mouth.

I have now today connected the bass reg to main stock.

I have tested bass reg reed with chanter/tuner and reed in reed seat all the way in but reed playing flat.

How do I sharpen reed to raise the pitch.

Do I use shorter staple or insert staple further in tails.



All the best

Ferg

[geoff wooff]

Two o three questions Ferg:

What is your Staple Diameter? Smaller Staple diameter will raise the overall pitch of Regulator whereas shortening the reed will more quickly sharpen the upper notes, so C and B will get sharp more quickly than A and G.

What is the sucked pitch of your reed ? ( Sucked pitch is the note achieved by sucking air steadily throught the reed from the lower end... using long breaths, none of that usual squark squark stuff you hear at reed making workshops which only shows how well the head seals when the blades shut together)...

Your reed head speed could be too low.... perhaps you have scraped too much. You could try triming a little off the tip of the head to speed it up a wee bit. The scrape length you suggest appears to me to be a bit long.

Is there a Rush or wire in the bore?

[Fergmaun]

Hi Geoff

The staple is same used in wide bore D Chanters

This staple I used came from bass Reg reed from Allan Moller
id = 4 mm

The crow is around F nat and The note on reg is F#,

Now the reed head has cracked/split we bit on both sides but tried to straighten head width

So will make two new bass reg reeds tomorrow Tuesday 21 October.

Cheers

Fergus

[Elmek]

Have you asked Andreas ?

[Fergmaun]

When I got the full set Dec 2008 I was having problems with this reg bass reed.

The reed dimensions from Dec 2008 for Andreas Rogge D Bass Reg reed that came with set
Staple 3.2mm id , 1.2 id eye
OAL 78mm,
Head width 11.5mm,
Head length 29mm
Tail length 22mm
scrape length 27mm

So when Paddy O'Hare said I should use staples of 4 mm id see link http://www.uilleannforum.com/forums/vie ... f=4&t=1173

I got Andreas to change bass reg reed seat a few years ago so that I could make a better working reed.

All the best

Fergus

[Fergmaun]

My Rogge pipes use hobby tubing for staple

So can you get hobbing tubing in size 9/64 inches = 3.571875 id but what is the od diameter.

Cheers

Fergus

[tompipes]

Hobby tubing has a wall thickness of .014 so you might have to roll a tube to get your required diameter.

Or just use 3/16 tube.

Tommy

[Fergmaun]

I found hobby round brass tubing online.

od 5/32" = 3.960mm so if the wall thickness of 0.014 would that make the id 0.142" = 3.6068mm.

If I calculated right this tubing should work.

Cheers

Fergus

[Doogie]

Great discussion as I'm making a copy of the Cummings Taylor DB Regulator right now , just finished the reamer's a few weeks ago, as the DB was missing from my Taylor set when I got it. I'm nowhere near reeding the thing but any information on the subject is quite welcome. I know the Brennan book has specs for a DB reed but who knows how accurate it is but it does call for a tubing staple which would be a simple one to attempt at least.

Thanks, Seth

[Doogie]

I found hobby round brass tubing online.

od 5/32" = 3.960mm so if the wall thickness of 0.014 would that make the id 0.142" = 3.6068mm.

If I calculated right this tubing should work.

Cheers

Fergus

Hi Fergus, the 5/32" o.d. tubing with a .014 wall is approx 1/8" i.d. You have to subtract the .014 wall twice so it would come to .128" i.d. Which would accept the next size down as these are made to telescope together and have a wee bit of clearance to slide smoothly.

[Fergmaun]

Thanks Doogie

Hi Fergus, the 5/32" o.d. tubing with a .014 wall is approx 1/8" i.d. You have to subtract the .014 wall twice so it would come to .128" i.d. Which would accept the next size down as these are made to telescope together and have a wee bit of clearance to slide smoothly.

I buy 5/32" and 3/16" K and S brass tubing from Macc Model Engineers Supplies Ltd on ebay.

I see they now sell 4mm od Brass K and S Tubing 12" THIN WALL that is 3.5mm id with a wall thickness of 0.225mm.

http://www.ebay.co.uk/sch/m.html?_odkw= ... l&_sacat=0

Great I found the size I need.

Cheers

Fergus