I'd like to open a tip on a mpce. For an ex. from an opening of 0.090" 
to 0.100" tenor. Obviously there is a limit to how much mat'l can be 
removed to accomodate this change. How critical is the the transition 
angle of the tip/baffle too chamber? In other words as I've seen in 
some mpces where the baffle is fairly prominent and then it drops with 
a steeper angle into the chamber and some more gradual. I want as big 
and fat a sound coming out of my horn but controllable. 

Keith if you are reading this, you mentioned in my other query about 
the tip opening process, that you lengthen the facing curve with the 
opening of the tip, how do you judge how much to lengthen using my 
example?

If you were to cut the mouthpiece in half and viewed this profile of a 
well playing mpce, from tip over a baffle, how much "headroom" would 
there be above the top of the baffle to the facing for a free blowing 
mpce with little resistance?

--- maddahorn <fmarych@...> wrote:

> I'd like to open a tip on a mpce. For an ex. from an opening of 0.090" 
> to 0.100" tenor. Obviously there is a limit to how much mat'l can be 
> removed to accomodate this change. How critical is the the transition 
> angle of the tip/baffle too chamber? In other words as I've seen in 
> some mpces where the baffle is fairly prominent and then it drops with 
> a steeper angle into the chamber and some more gradual. I want as big 
> and fat a sound coming out of my horn but controllable. 
> 
> Keith if you are reading this, you mentioned in my other query about 
> the tip opening process, that you lengthen the facing curve with the 
> opening of the tip, how do you judge how much to lengthen using my 
> example?

It depends on where you are starting from.  If it is in the 44-48 range, I
would add 2 numbers to it.  If it was shorter, I might add 4, longer, keep
it where it is.

> 
> If you were to cut the mouthpiece in half and viewed this profile of a 
> well playing mpce, from tip over a baffle, how much "headroom" would 
> there be above the top of the baffle to the facing for a free blowing 
> mpce with little resistance?

I would either roll-over the baffle near the tip rail or make a short
straight baffle.  When I gun site along the baffle from the tip, I like to
be able to see at least 1/2 of the bore opening.  Any higher and I feel it
chokes off the sound some.  Seeing the whole bore is a good target.

> 
> 
> 



      ____________________________________________________________________________________
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Thanks again Keith. You've been very helpful. 
What a great site!
  ----- Original Message ----- 
  From: Keith Bradbury 
  To: MouthpieceWork@yahoogroups.com 
  Sent: Saturday, March 01, 2008 11:27 AM
  Subject: Re: [MouthpieceWork] Tip t' baffle t' chamber relation?



  --- maddahorn <fmarych@comcast.net> wrote:

  > I'd like to open a tip on a mpce. For an ex. from an opening of 0.090" 
  > to 0.100" tenor. Obviously there is a limit to how much mat'l can be 
  > removed to accomodate this change. How critical is the the transition 
  > angle of the tip/baffle too chamber? In other words as I've seen in 
  > some mpces where the baffle is fairly prominent and then it drops with 
  > a steeper angle into the chamber and some more gradual. I want as big 
  > and fat a sound coming out of my horn but controllable. 
  > 
  > Keith if you are reading this, you mentioned in my other query about 
  > the tip opening process, that you lengthen the facing curve with the 
  > opening of the tip, how do you judge how much to lengthen using my 
  > example?

  It depends on where you are starting from. If it is in the 44-48 range, I
  would add 2 numbers to it. If it was shorter, I might add 4, longer, keep
  it where it is.

  > 
  > If you were to cut the mouthpiece in half and viewed this profile of a 
  > well playing mpce, from tip over a baffle, how much "headroom" would 
  > there be above the top of the baffle to the facing for a free blowing 
  > mpce with little resistance?

  I would either roll-over the baffle near the tip rail or make a short
  straight baffle. When I gun site along the baffle from the tip, I like to
  be able to see at least 1/2 of the bore opening. Any higher and I feel it
  chokes off the sound some. Seeing the whole bore is a good target.

  > 
  > 
  > 

  __________________________________________________________
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  Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping


   

I find it important to cut material away just behind the tip rail for free-blowingness. No matter how high the baffle is generally (and it is possibly more important if it is high), there needs to be a clear space just behind the tip rail--if you have this it improves response and makes the mpc
 much less likely to chirp with a minimal difference to the overall sound. At least this has been my experience. 

Toby

fred marych <fmarych@...> wrote:                                  
Thanks again Keith. You've been very helpful.  
 What a great site!
    ----- Original Message ----- 
   From:    Keith    Bradbury 
   To: MouthpieceWork@yahoogroups.com    
   Sent: Saturday, March 01, 2008 11:27    AM
   Subject: Re: [MouthpieceWork] Tip t'    baffle t' chamber relation?
   

      
--- maddahorn <fmarych@...>    wrote:

> I'd like to open a tip on a mpce. For an ex. from an    opening of 0.090" 
> to 0.100" tenor. Obviously there is a limit to how    much mat'l can be 
> removed to accomodate this change. How critical is    the the transition 
> angle of the tip/baffle too chamber? In other    words as I've seen in 
> some mpces where the baffle is fairly prominent    and then it drops with 
> a steeper angle into the chamber and some more    gradual. I want as big 
> and fat a sound coming out of my horn but    controllable. 
> 
> Keith if you are reading this, you mentioned    in my other query about 
> the tip opening process, that you lengthen    the facing curve with the 
> opening of the tip, how do you judge how    much to lengthen using my 
> example?

It depends on where you are    starting from. If it is in the 44-48 range, I
would add 2 numbers to it. If    it was shorter, I might add 4, longer, keep
it where it is.

>    
> If you were to cut the mouthpiece in half and viewed this profile of    a 
> well playing mpce, from tip over a baffle, how much "headroom"    would 
> there be above the top of the baffle to the facing for a free    blowing 
> mpce with little resistance?

I would either roll-over    the baffle near the tip rail or make a short
straight baffle. When I gun    site along the baffle from the tip, I like to
be able to see at least 1/2    of the bore opening. Any higher and I feel it
chokes off the sound some.    Seeing the whole bore is a good target.

> 
> 
>    

__________________________________________________________
Looking    for last minute shopping deals? 
Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping