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Winter 2019 Build Off - the EUV

Discussion in 'Luthier's Corner' started by ctmullins, Dec 22, 2018.


  1. dwizum

    dwizum

    Dec 21, 2018
    It'll be harder than you think to get a good finish on the carbon/epoxy if you're not used to working with it. You would be best off doing it in two phases, glue the carbon in and then lay a coat of epoxy on top.
     
    T_Bone_TL likes this.
  2. ctmullins

    ctmullins fueled by beer and coconut Gold Supporting Member

    Apr 18, 2008
    MS Gulf Coast
    I'm highly opinionated and extremely self-assured
    Thanks for the help everybody. I’ll ponder for a day or two more before committing.

    Started finish sanding the body, and threw on a coat of oil for kicks. It’s fun to see the difference between the bare wood and the oiled wood...

    EUV_0285.

    ...and it’s always fun to see the figure under a finish for the first time!

    EUV_0286.

    It also helps me see spots that need more sanding.
     
  3. T_Bone_TL

    T_Bone_TL

    Jan 10, 2013
    NW Mass/SW VT
    Given the extent to which CF (and fake CF) are used as a decorative motif in various things, likely just fine. Functionally it's in the right place, so it should function. I agree with @dwizum that your better bet here would be two-stage.
     
  4. ctmullins

    ctmullins fueled by beer and coconut Gold Supporting Member

    Apr 18, 2008
    MS Gulf Coast
    I'm highly opinionated and extremely self-assured
    I've taken this build off-grid for a bit, because I wanted to do a bit of experimentation without you lot looking over my shoulder. ;)

    I came up with this list of options for neck reinforcement:
    1. Extra-long custom length trussrod (2 to 4 week wait from LMII)
    2. Standard bass guitar trussrod, leaving the section nearest the body without
    3. Aluminum beam
    4. Steel beam
    5. TOW inlaid from the back and covered with skunk stripe
    I've decided to do option 5. Having never used West epoxy before, it will require some practice runs.

    Because this option doesn't require me routing anything under the fingerboard, I decided to go ahead and glue it on - I was still curious about the stiffness of the structure without anything other than wood. I lightly scuffed the two pieces, spread out my glue, and clamped her up.

    EUV_0289.

    Cut me a bridge out of scrap from the maple neck - using the Japanese pull saw was fun!

    EUV_0287.

    Fashioned a quick nut out of some leftover Macassar ebony.

    EUV_0291.

    Slotted my bridge, mounted my tuners, and strung her up, to see just how much the neck would bend.

    EUV_0288.

    Well, it didn't bend at all. 46mm of solid rock maple and ebony is pretty stout after all.

    EUV_0290.

    Things I'm (at least a little bit) surprised about:

    • The lack of any bend whatsoever in the neck. I expected at least a little bit of relief...
    • My glued-on tailpiece held up to the tension of all five strings.
    • The G string broke at F#. Apparently this is a known problem.
    • I got the string spacing basically right the first time.
    • The Z Clip holding the neck to the body works fine.
    • The whole shebang only weighs about 20 lbs.
    With only four weeks left in the competition, I have been feeling a bit stressed at being slightly behind schedule. This makes up for it!
     
  5. Reedt2000

    Reedt2000 Supporting Member

    Apr 26, 2017
    Central New Jersey
    Nuthin left to do but fret it

    :smug:
     
  6. ctmullins

    ctmullins fueled by beer and coconut Gold Supporting Member

    Apr 18, 2008
    MS Gulf Coast
    I'm highly opinionated and extremely self-assured
    Dang, forgot about that! :roflmao:
     
    Reedt2000 and Microbass like this.
  7. @ctmullins , amazing work man! Would love a play on that thang!
     
    ctmullins likes this.
  8. This bass is freakin’ amazing!
     
    ctmullins likes this.
  9. postalflunkie

    postalflunkie Supporting Member

    Jun 12, 2013
    Westerville, Ohio
    Fantastic work :thumbsup:
     
    ctmullins likes this.
  10. dwizum

    dwizum

    Dec 21, 2018
    It seriously needs a volume and a tone knob, positioned just above and to either side of the nose... err, bridge.
     
    Beej, BritFunk and ctmullins like this.
  11. ctmullins

    ctmullins fueled by beer and coconut Gold Supporting Member

    Apr 18, 2008
    MS Gulf Coast
    I'm highly opinionated and extremely self-assured
    Definitely an option.

    Ahem... :angel:

    Having zero experience with upright, and only plunking on it a bit last night... Fine? I think? Honestly the entire thing is so foreign (as compared to a slab hanging around my neck), it’s a bit hard to say. But I didn’t feel like I was having to fight it. I’m looking forward to spending enough time with it to give a better answer!
     
  12. Jon Clegg

    Jon Clegg Supporting Member

    Feb 9, 2015
    Northern Virginia
    Ummm... phrasing?
     
    rojo412 and BritFunk like this.
  13. ctmullins

    ctmullins fueled by beer and coconut Gold Supporting Member

    Apr 18, 2008
    MS Gulf Coast
    I'm highly opinionated and extremely self-assured
    I know it. I’ll never be able to un-see that now! :roflmao:
     
    BritFunk likes this.
  14. dwizum

    dwizum

    Dec 21, 2018
    Jokes aside it's a gorgeous instrument and I bet it's fun to play. I have almost zero exposure to upright basses, but once in a while when my daughter isn't looking, I will steal her cello and plunk on it like it was a double bass. So much fun. I can imagine this thing will be a hoot.
     
  15. Beautiful work
     
    ctmullins likes this.
  16. ctmullins

    ctmullins fueled by beer and coconut Gold Supporting Member

    Apr 18, 2008
    MS Gulf Coast
    I'm highly opinionated and extremely self-assured
    Also I’m surprised nobody’s mentioned this guy yet:

     
    SLivinghouse likes this.
  17. Jon Clegg

    Jon Clegg Supporting Member

    Feb 9, 2015
    Northern Virginia
    And you thought a normal flying V was hard to find a case for...
     
  18. WOW! That looks great! I would love to play that thing. Now the hard part begins, getting upright bass technique down. You gotta schedule a lesson with a bassist from the local symphony and not warn him/her what you're showing up with. As an experienced upright player I do really suggest getting some help from an player to work out technique because it is a bit different. You can mess yourself up with carpal tunnel etc. if you don't take it seriously. Just look in the local yellow pages section: Musical Instrument Lesson: Flying V: EUB and you should have plenty of listings to choose from. Or look for referrals in the TB double bass section. But seriously- Congrats on a very creative build!
    Steve
     
    ctmullins likes this.
  19. JIO

    JIO Gold Supporting Member Commercial User

    Jun 30, 2010
    Oceana (Pacifica) CA
    musician/artist/owner - Gildaxe
    "Honey I shrunk the guitarist... "
     
  20. dwizum

    dwizum

    Dec 21, 2018
    This thread is going to ruin me. I need another project like a hole in the head, yet I now I can't stop watching videos about EUBs and daydreaming about how I might design one...
     
    ctmullins likes this.

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