Grafting a new valve casing thread

Discussion in 'Trumpet Discussion' started by trumpetsplus, Jan 17, 2012.

  1. trumpetsplus

    trumpetsplus Fortissimo User

    Age:
    68
    3,013
    3,579
    Jun 11, 2006
    South Salem, NY
    I wanted to keep it as simple as possible. If it lets go in the future, nothing is lost. I could then machine a couple of keyways to give extra lateral support.
     
  2. trumpetsplus

    trumpetsplus Fortissimo User

    Age:
    68
    3,013
    3,579
    Jun 11, 2006
    South Salem, NY
    My charge for the job in no way covered the planning and execution. A bit of a labor of love. The owner is one of my "meta-clients". His loyalty to me is worth a bit of a loss now and then.

    This is what I mean by "meta-client":
    ivan?s blog

    I also fitted a Strad 239 bell to this horn.

    The damage was done to the horn when my guy bought it (in the hope that I could sort it out).
     
    Last edited: Jan 18, 2012
  3. codyb226

    codyb226 Banned

    2,660
    354
    Mar 9, 2011
    Florida, US
    Ivan, if I had to have this done. Ballpark, what would it cost? Not that it needs it or anything but one of my bottom caps get kinda stuck and bent sometime.
     
  4. Brekelefuw

    Brekelefuw Fortissimo User

    3,185
    976
    Mar 21, 2006
    Toronto
    Stuck and bent threads are an easy fix with the right tool. It is nothing like the extensive work done here.
    Stuck caps and bent threads can be as quick as a few taps with a mallet, or chasing the threads with a thread chaser.
     
  5. trumpetsplus

    trumpetsplus Fortissimo User

    Age:
    68
    3,013
    3,579
    Jun 11, 2006
    South Salem, NY
    Yes, exactly.
     
  6. rowuk

    rowuk Moderator Staff Member

    Age:
    61
    16,611
    7,948
    Jun 18, 2006
    Germany
    I like my valves Straight, no Chaser.
     
  7. jiarby

    jiarby Fortissimo User

    2,513
    1,291
    May 7, 2011
    Arizona
    Yeah, I understand what you are saying Ivan!

    This is the kind of job no one would actually do (especially on a horn of this value) if they had to pay what it really cost to do.
    You would just make it round again, chase the threads and leave the missing chunk.

    I am curious how he likes the bach bell. I was thinking a 72* bell would be great on my 6445.
     
  8. Kujo20

    Kujo20 Forte User

    1,615
    659
    Sep 29, 2010
    Looks kinda tedious...

    Nice work!

    Kujo
     
  9. ChopsGone

    ChopsGone Forte User

    1,841
    567
    Jan 26, 2009
    Northern California
    It's great that Ivan shared the process here. I have a feeling this sort of repair is needed more than we'd like to believe. Mark Metzler did a similar repair a few years ago on a beautiful little engraved A. Hall Gisborne cornet I bought. In that case, one of the threaded sections of a top casing had obviously failed and been sloppily repaired in the past, making the cap extremely difficult to remove or install. I think some times the good techs go the extra mile on these nasty little jobs out of pride in their abilities. Ivan certainly proved his with this job.
     
  10. JDay

    JDay Pianissimo User

    144
    25
    Nov 20, 2007
    Wenatchee, WA
    That is very well executed. I doubt it will ever 'let go'. If something were to ever happen though I did see this on Dan Oberloh's website.

    Uncommon and Complicated Repairs

    Yet another incredible job by a very good repair tech. Perhaps another option if the previous fix were to ever have an issue?

    The repairs you guys can do is simply amazing.
     

Share This Page