FROM: womrep (womrep)
SUBJECT: Trashed shank repair
I'm a repair tech - one of the school baris I worked on yesterday had a Selmer S90 in the case with a jagged, shattered shank.  To be clear, it's not cracked, the end of the shank is gone and what's left is pointy, jagged, and broken.  Since there was also a Yamaha mouthpiece present and I'm pretty sure the Selmer would have shredded the cork if they tried to put it on the neck, I expect they aren't using the Selmer.  Anyways, it seems like I could use the lathe to cut a clean end on this thing and turn down a considerable length of the remaining shank onto which I could then intsall a replacement shank "sleeve" (kind of like a clarinet tenon/socket replacement if you're familiar with that).  It's never crossed my mind before, but most of the time it's the tip that shatters rather than the shank, most mouthpieces aren't long or fat enough for this to be useful, and the time involved in such a project would generally make it financially impractical, but this is a $200-250 mouthpiece, so it could be worthwhile if it works.  Has anyone here done this sort of thing?
Pete


FROM: lancelotburt (MartinMods)
SUBJECT: Re: Trashed shank repair
I've made plenty of shank extensions, which is the same thing.  You'll have to make a mandrel that fits the throat snugly to mount the piece on for turning what's left of the shank.  As long as there is enough shank length left before the butt of the table, it will work fine.  

--- On Wed, 3/28/12, womrep <womrep@...> wrote:

From: womrep <womrep@yahoo.com>
Subject: [MouthpieceWork] Trashed shank repair
To: MouthpieceWork@yahoogroups.com
Date: Wednesday, March 28, 2012, 4:06 AM
















 



  


    
      
      
      I'm a repair tech - one of the school baris I worked on yesterday had a Selmer S90 in the case with a jagged, shattered shank.  To be clear, it's not cracked, the end of the shank is gone and what's left is pointy, jagged, and broken.  Since there was also a Yamaha mouthpiece present and I'm pretty sure the Selmer would have shredded the cork if they tried to put it on the neck, I expect they aren't using the Selmer.  Anyways, it seems like I could use the lathe to cut a clean end on this thing and turn down a considerable length of the remaining shank onto which I could then intsall a replacement shank "sleeve" (kind of like a clarinet tenon/socket replacement if you're familiar with that).  It's never crossed my mind before, but most of the time it's the tip that shatters rather than the shank, most mouthpieces aren't long or fat enough for this to be useful, and the time involved in such a project would generally make it financially impractical,
 but this is a $200-250 mouthpiece, so it could be worthwhile if it works.  Has anyone here done this sort of thing?

Pete





    
     

    
    






  








FROM: tenorman1952 (tenorman1952)
SUBJECT: Re: Trashed shank repair

--- In MouthpieceWork@yahoogroups.com, "womrep" <womrep@...> wrote:
>
> I'm a repair tech - one of the school baris I worked on yesterday had a Selmer S90 in the case with a jagged, shattered shank.  To be clear, it's not cracked, the end of the shank is gone and what's left is pointy, jagged, and broken.  Since there was also a Yamaha mouthpiece present and I'm pretty sure the Selmer would have shredded the cork if they tried to put it on the neck, I expect they aren't using the Selmer.  Anyways, it seems like I could use the lathe to cut a clean end on this thing and turn down a considerable length of the remaining shank onto which I could then intsall a replacement shank "sleeve" (kind of like a clarinet tenon/socket replacement if you're familiar with that).  It's never crossed my mind before, but most of the time it's the tip that shatters rather than the shank, most mouthpieces aren't long or fat enough for this to be useful, and the time involved in such a project would generally make it financially impractical, but this is a $200-250 mouthpiece, so it could be worthwhile if it works.  Has anyone here done this sort of thing?
> Pete
>

I've banded a number of S80 alto and tenor mouthpieces.  The shank is too thin, and cracking is common.  I have not made an extension as you describe and don't think it is worth the time expended.  Also, I am not sure it would remain glued on.

Paul C.


FROM: stevesklar (steve sklar)
SUBJECT: Re: Trashed shank repair
On some of my "modern" Selmers I've made them into Short Shanks, basically cut & smoothed half the shank away to make them the same length as my other mpcs.  They work just fine too.  So don't think that you have to replace the entire shank to the same length as before.

Steve Sklar
FROM: kwbradbury (Keith Bradbury)
SUBJECT: Re: Trashed shank repair
I recently rebuilt a jagged shank using a metal sleeve on the exterior and epoxy:
 
https://www.facebook.com/media/set/?set=a.10150351566306154.396095.342774316153&type=3
 


________________________________
From: womrep <womrep@...>
To: MouthpieceWork@yahoogroups.com 
Sent: Wednesday, March 28, 2012 12:06 AM
Subject: [MouthpieceWork] Trashed shank repair


  
I'm a repair tech - one of the school baris I worked on yesterday had a Selmer S90 in the case with a jagged, shattered shank. To be clear, it's not cracked, the end of the shank is gone and what's left is pointy, jagged, and broken. Since there was also a Yamaha mouthpiece present and I'm pretty sure the Selmer would have shredded the cork if they tried to put it on the neck, I expect they aren't using the Selmer. Anyways, it seems like I could use the lathe to cut a clean end on this thing and turn down a considerable length of the remaining shank onto which I could then intsall a replacement shank "sleeve" (kind of like a clarinet tenon/socket replacement if you're familiar with that). It's never crossed my mind before, but most of the time it's the tip that shatters rather than the shank, most mouthpieces aren't long or fat enough for this to be useful, and the time involved in such a project would generally make it financially impractical, but this
 is a $200-250 mouthpiece, so it could be worthwhile if it works. Has anyone here done this sort of thing?
Pete


FROM: kwbradbury (Keith Bradbury)
SUBJECT: Re: Trashed shank repair
This similar shank extension job photos shows intermediate steps:
 
http://www.mojomouthpiecework.com/Photos/tabid/59/AlbumID/386-234/Default.aspx


________________________________
From: womrep <womrep@...>
To: MouthpieceWork@yahoogroups.com 
Sent: Wednesday, March 28, 2012 12:06 AM
Subject: [MouthpieceWork] Trashed shank repair


  
I'm a repair tech - one of the school baris I worked on yesterday had a Selmer S90 in the case with a jagged, shattered shank. To be clear, it's not cracked, the end of the shank is gone and what's left is pointy, jagged, and broken. Since there was also a Yamaha mouthpiece present and I'm pretty sure the Selmer would have shredded the cork if they tried to put it on the neck, I expect they aren't using the Selmer. Anyways, it seems like I could use the lathe to cut a clean end on this thing and turn down a considerable length of the remaining shank onto which I could then intsall a replacement shank "sleeve" (kind of like a clarinet tenon/socket replacement if you're familiar with that). It's never crossed my mind before, but most of the time it's the tip that shatters rather than the shank, most mouthpieces aren't long or fat enough for this to be useful, and the time involved in such a project would generally make it financially impractical, but this
 is a $200-250 mouthpiece, so it could be worthwhile if it works. Has anyone here done this sort of thing?
Pete


FROM: lancelotburt (MartinMods)
SUBJECT: Re: Less-than CNC Mouthpiece Fabrication Picts
Here are some picts of less-than CNC (manual) mouthpiece fabrication from solid brass rod.  I use specially sized (in shop), telescoping tubing for the brazed throat and shank insert.  I don't plan to go CNC, as all the chamber styles I'm interested in must be hand cut primarily. These picts are using a HF milling vise, a $50 scrap yard drill press from 1910 (heavy duty) that is sturdy enough to function as a light milling machine, DIY cutting tool holders (fly cutter), a manual lathe, hand files, and lapidary grits.  I plan to add a large manual rotary table and suitable work holding tooling and that will be sufficient for me. 

01 - initial throat drilling.jpg

02 - throat sleeve bore with squeeze hole.jpg

03 - body with throat and shank sleeves.jpg

05 - fly cut table.jpg

07 - beak rough cut 02.jpg

08 - contour filing 01.jpg

10 - chamber 01 rough cut.jpg

11 - profile 01.jpg

12 - profile 02.jpg

13 - profile 03.jpg

15 - chamber 01.jpg

19 - chamber 04.jpg
FROM: lancelotburt (MartinMods)
SUBJECT: Re: Less-than CNC Mouthpiece Fabrication Picts
oops!  Here are the pict links:

http://www.martinmods.com/mpc/01%20-%20initial%20throat%20drilling.jpg

http://www.martinmods.com/mpc/02%20-%20throat%20sleeve%20bore%20with%20squeeze%20hole.jpg

http://www.martinmods.com/mpc/03%20-%20body%20with%20throat%20and%20shank%20sleeves.jpg

http://www.martinmods.com/mpc/05%20-%20fly%20cut%20table.jpg

http://www.martinmods.com/mpc/07%20-%20beak%20rough%20cut%2002.jpg

http://www.martinmods.com/mpc/08%20-%20contour%20filing%2001.jpg

http://www.martinmods.com/mpc/10%20-%20chamber%2001%20rough%20cut.jpg

http://www.martinmods.com/mpc/11%20-%20profile%2001.jpg

http://www.martinmods.com/mpc/12%20-%20profile%2002.jpg

http://www.martinmods.com/mpc/13%20-%20profile%2003.jpg

http://www.martinmods.com/mpc/15%20-%20chamber%2001.jpg

http://www.martinmods.com/mpc/19%20-%20chamber%2004.jpg




--- On Mon, 4/2/12, MartinMods <lancelotburt@...> wrote:

From: MartinMods <lancelotburt@...>
Subject: Re: [MouthpieceWork] Less-than CNC Mouthpiece Fabrication Picts
To: MouthpieceWork@yahoogroups.com
Date: Monday, April 2, 2012, 5:02 AM
















 



  


    
      
      
      Here are some picts of less-than CNC (manual) mouthpiece fabrication from solid brass rod.  I use specially sized (in shop), telescoping tubing for the brazed throat and shank insert.  I don't plan to go CNC, as all the chamber styles I'm interested in must be hand cut primarily. These picts are using a HF milling vise, a $50 scrap yard drill press from 1910 (heavy duty) that is sturdy enough to function as a light milling machine, DIY cutting tool holders (fly cutter), a manual lathe, hand files, and lapidary grits.  I plan to add a large manual rotary table and suitable work holding tooling and that will be sufficient for me. 

01 - initial throat drilling.jpg

02 - throat sleeve bore with squeeze hole.jpg

03 - body with throat and shank sleeves.jpg

05 - fly cut table.jpg

07 - beak rough cut 02.jpg

08 -
 contour filing 01.jpg

10 - chamber 01 rough cut.jpg

11 - profile 01.jpg

12 - profile 02.jpg

13 - profile 03.jpg

15 - chamber 01.jpg

19 - chamber 04.jpg


    
     

    
    






  








FROM: sakshama2 (Sakshama Koloski)
SUBJECT: Re: Less-than CNC Mouthpiece Fabrication Picts
Wow, great job. I'm impressed.

On Mon, Apr 2, 2012 at 1:14 AM, MartinMods <lancelotburt@...> wrote:

> **
>
>
> oops!  Here are the pict links:
>
> http://www.martinmods.com/mpc/01%20-%20initial%20throat%20drilling.jpg
>
>
> http://www.martinmods.com/mpc/02%20-%20throat%20sleeve%20bore%20with%20squeeze%20hole.jpg
>
> <http://www.martinmods.com/mpc/03%20-%20body%20with%20throat%20and%20shank%20sleeves.jpg>
> http://www.martinmods.com/mpc/03%20-%20body%20with%20throat%20and%20shank%20sleeves.jpg
>
> http://www.martinmods.com/mpc/05%20-%20fly%20cut%20table.jpg
>
> http://www.martinmods.com/mpc/07%20-%20beak%20rough%20cut%2002.jpg
>
> <http://www.martinmods.com/mpc/08%20-%20contour%20filing%2001.jpg>
> http://www.martinmods.com/mpc/08%20-%20contour%20filing%2001.jpg
>
> http://www.martinmods.com/mpc/10%20-%20chamber%2001%20rough%20cut.jpg
>
> http://www.martinmods.com/mpc/11%20-%20profile%2001.jpg
>
> http://www.martinmods.com/mpc/12%20-%20profile%2002.jpg
>
> http://www.martinmods.com/mpc/13%20-%20profile%2003.jpg
>
> http://www.martinmods.com/mpc/15%20-%20chamber%2001.jpg
>
> http://www.martinmods.com/mpc/19%20-%20chamber%2004.jpg
>
>
>
>
> --- On *Mon, 4/2/12, MartinMods <lancelotburt@...>* wrote:
>
>
> From: MartinMods <lancelotburt@...>
> Subject: Re: [MouthpieceWork] Less-than CNC Mouthpiece Fabrication Picts
> To: MouthpieceWork@yahoogroups.com
> Date: Monday, April 2, 2012, 5:02 AM
>
>
>
>
> Here are some picts of less-than CNC (manual) mouthpiece fabrication from
> solid brass rod.  I use specially sized (in shop), telescoping tubing for
> the brazed throat and shank insert.  I don't plan to go CNC, as all the
> chamber styles I'm interested in must be hand cut primarily. These picts
> are using a HF milling vise, a $50 scrap yard drill press from 1910 (heavy
> duty) that is sturdy enough to function as a light milling machine, DIY
> cutting tool holders (fly cutter), a manual lathe, hand files, and lapidary
> grits.  I plan to add a large manual rotary table and suitable work holding
> tooling and that will be sufficient for me.
>
> 01 - initial throat drilling.jpg
>
> 02 - throat sleeve bore with squeeze hole.jpg
>
> 03 - body with throat and shank sleeves.jpg
>
> 05 - fly cut table.jpg
>
> 07 - beak rough cut 02.jpg
>
> 08 - contour filing 01.jpg
>
> 10 - chamber 01 rough cut.jpg
>
> 11 - profile 01.jpg
>
> 12 - profile 02.jpg
>
> 13 - profile 03.jpg
>
> 15 - chamber 01.jpg
>
> 19 - chamber 04.jpg
>
>   
>



-- 
Sakshama

www. sakshamamouthpieces.com
FROM: tenorman1952 (tenorman1952)
SUBJECT: Re: Less-than CNC Mouthpiece Fabrication Picts

--- In MouthpieceWork@yahoogroups.com, MartinMods <lancelotburt@...> wrote:
>
> oops!  Here are the pict links:
> 



Thanks for the pictures!  Good work!

Paul


FROM: frymorgan (Morgan)
SUBJECT: Re: Less-than CNC Mouthpiece Fabrication Picts
Ingenious work.  I'm worried about using the drill chuck for toolholding, though.  I mean, you're going to finish everything by hand so the runout isn't a huge deal but it'll pull out under too much radial force.  

So you're manage mpc volume vs length with bores with different squeeze lengths?  

--- In MouthpieceWork@yahoogroups.com, MartinMods <lancelotburt@...> wrote:
>
> oops!  Here are the pict links:
> 
> http://www.martinmods.com/mpc/01%20-%20initial%20throat%20drilling.jpg
> 
> http://www.martinmods.com/mpc/02%20-%20throat%20sleeve%20bore%20with%20squeeze%20hole.jpg
> 
> http://www.martinmods.com/mpc/03%20-%20body%20with%20throat%20and%20shank%20sleeves.jpg
> 
> http://www.martinmods.com/mpc/05%20-%20fly%20cut%20table.jpg
> 
> http://www.martinmods.com/mpc/07%20-%20beak%20rough%20cut%2002.jpg
> 
> http://www.martinmods.com/mpc/08%20-%20contour%20filing%2001.jpg
> 
> http://www.martinmods.com/mpc/10%20-%20chamber%2001%20rough%20cut.jpg
> 
> http://www.martinmods.com/mpc/11%20-%20profile%2001.jpg
> 
> http://www.martinmods.com/mpc/12%20-%20profile%2002.jpg
> 
> http://www.martinmods.com/mpc/13%20-%20profile%2003.jpg
> 
> http://www.martinmods.com/mpc/15%20-%20chamber%2001.jpg
> 
> http://www.martinmods.com/mpc/19%20-%20chamber%2004.jpg
> 
> 
> 
> 
> --- On Mon, 4/2/12, MartinMods <lancelotburt@...> wrote:
> 
> From: MartinMods <lancelotburt@...>
> Subject: Re: [MouthpieceWork] Less-than CNC Mouthpiece Fabrication Picts
> To: MouthpieceWork@yahoogroups.com
> Date: Monday, April 2, 2012, 5:02 AM
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
>  
> 
> 
> 
>   
> 
> 
>     
>       
>       
>       Here are some picts of less-than CNC (manual) mouthpiece fabrication from solid brass rod.  I use specially sized (in shop), telescoping tubing for the brazed throat and shank insert.  I don't plan to go CNC, as all the chamber styles I'm interested in must be hand cut primarily. These picts are using a HF milling vise, a $50 scrap yard drill press from 1910 (heavy duty) that is sturdy enough to function as a light milling machine, DIY cutting tool holders (fly cutter), a manual lathe, hand files, and lapidary grits.  I plan to add a large manual rotary table and suitable work holding tooling and that will be sufficient for me. 
> 
> 01 - initial throat drilling.jpg
> 
> 02 - throat sleeve bore with squeeze hole.jpg
> 
> 03 - body with throat and shank sleeves.jpg
> 
> 05 - fly cut table.jpg
> 
> 07 - beak rough cut 02.jpg
> 
> 08 -
>  contour filing 01.jpg
> 
> 10 - chamber 01 rough cut.jpg
> 
> 11 - profile 01.jpg
> 
> 12 - profile 02.jpg
> 
> 13 - profile 03.jpg
> 
> 15 - chamber 01.jpg
> 
> 19 - chamber 04.jpg
>



FROM: lancelotburt (MartinMods)
SUBJECT: Re: Less-than CNC Mouthpiece Fabrication Picts
Thanks Morgan.

There is enough space between the point where the parallel gripping surfaces of the Jacobs chuck jaws start and the back wall of the chuck body, to give the end of a specially machined tool shaft a retaining flange.  The tool won't pull out.  Still, I'm making a collet chuck holder for more precise work.

An adjustable length "squeeze" might be interesting, but this design works just like the old Conn Adjustable did, varying the length of the larger diameter throat section by varying the length of the smaller diameter shank inserted into it.


--- On Thu, 4/5/12, Morgan <frymorgan@...> wrote:

From: Morgan <frymorgan@...>
Subject: [MouthpieceWork] Re: Less-than CNC Mouthpiece Fabrication Picts
To: MouthpieceWork@yahoogroups.com
Date: Thursday, April 5, 2012, 2:51 PM








 



  


    
      
      
      Ingenious work.  I'm worried about using the drill chuck for toolholding, though.  I mean, you're going to finish everything by hand so the runout isn't a huge deal but it'll pull out under too much radial force.  



So you're manage mpc volume vs length with bores with different squeeze lengths?  



--- In MouthpieceWork@yahoogroups.com, MartinMods <lancelotburt@...> wrote:

>

> oops!  Here are the pict links:

> 

> http://www.martinmods.com/mpc/01%20-%20initial%20throat%20drilling.jpg

> 

> http://www.martinmods.com/mpc/02%20-%20throat%20sleeve%20bore%20with%20squeeze%20hole.jpg

> 

> http://www.martinmods.com/mpc/03%20-%20body%20with%20throat%20and%20shank%20sleeves.jpg

> 

> http://www.martinmods.com/mpc/05%20-%20fly%20cut%20table.jpg

> 

> http://www.martinmods.com/mpc/07%20-%20beak%20rough%20cut%2002.jpg

> 

> http://www.martinmods.com/mpc/08%20-%20contour%20filing%2001.jpg

> 

> http://www.martinmods.com/mpc/10%20-%20chamber%2001%20rough%20cut.jpg

> 

> http://www.martinmods.com/mpc/11%20-%20profile%2001.jpg

> 

> http://www.martinmods.com/mpc/12%20-%20profile%2002.jpg

> 

> http://www.martinmods.com/mpc/13%20-%20profile%2003.jpg

> 

> http://www.martinmods.com/mpc/15%20-%20chamber%2001.jpg

> 

> http://www.martinmods.com/mpc/19%20-%20chamber%2004.jpg

> 

> 

> 

> 

> --- On Mon, 4/2/12, MartinMods <lancelotburt@...> wrote:

> 

> From: MartinMods <lancelotburt@...>

> Subject: Re: [MouthpieceWork] Less-than CNC Mouthpiece Fabrication Picts

> To: MouthpieceWork@yahoogroups.com

> Date: Monday, April 2, 2012, 5:02 AM

> 

> 

> 

> 

> 

> 

> 

> 

> 

> 

> 

> 

> 

> 

> 

> 

>  

> 

> 

> 

>   

> 

> 

>     

>       

>       

>       Here are some picts of less-than CNC (manual) mouthpiece fabrication from solid brass rod.  I use specially sized (in shop), telescoping tubing for the brazed throat and shank insert.  I don't plan to go CNC, as all the chamber styles I'm interested in must be hand cut primarily. These picts are using a HF milling vise, a $50 scrap yard drill press from 1910 (heavy duty) that is sturdy enough to function as a light milling machine, DIY cutting tool holders (fly cutter), a manual lathe, hand files, and lapidary grits.  I plan to add a large manual rotary table and suitable work holding tooling and that will be sufficient for me. 

> 

> 01 - initial throat drilling.jpg

> 

> 02 - throat sleeve bore with squeeze hole.jpg

> 

> 03 - body with throat and shank sleeves.jpg

> 

> 05 - fly cut table.jpg

> 

> 07 - beak rough cut 02.jpg

> 

> 08 -

>  contour filing 01.jpg

> 

> 10 - chamber 01 rough cut.jpg

> 

> 11 - profile 01.jpg

> 

> 12 - profile 02.jpg

> 

> 13 - profile 03.jpg

> 

> 15 - chamber 01.jpg

> 

> 19 - chamber 04.jpg

>