1. Welcome to TalkBass 2014! If you're new here, we just went through a major site upgrade. Please post all concerns and bugs to the Forum Usage Issues forum. We will be monitoring that forum. We are currently evaluating the "One Post Per Classified Ad" policy. Thank you for all of your feedback.

    The TalkBass iphone/android app is NOT WORKING currently. We're working on it. Tapatalk IS working, so if you need to use an app, use Tapatalk. Try using your browser though - TalkBass is now 100% responsive to your phone/tablet screen size ;)

    Please read the TalkBass 2014 FAQ for lots of great info on the new software.

Warmoth Neck X-ray and thinning!

Discussion in 'Luthier's Corner' started by Dean N, Jan 31, 2013.

  1. Dean N

    Dean N

    Joined:
    Jul 4, 2006
    Likes Received:
    0
    I'm refinishing a Warmoth Jazz (not thin taper) neck. I figured it's a good time to thin it a little bit, too.

    After looking at a bunch of threads that discuss thinning Warmoth necks, a few people mentioned that short of x-rays, it's just a crapshoot when doing this. One might simply sand into the truss rod cavity or end up on the steel bars. I'm not going for a Geddy or Soundgear neck... just a little more trim.

    Anyhow, turns out that I actually can x-ray my neck. I'll be doing that tomorrow, though I'm not sure exactly how much useful information I'll glean from it. I figured you guys here at the LC might be interested. Any thoughts on how to make neck x-rays useful or helpful?

    :)
  2. wcoffey81

    wcoffey81

    Joined:
    Feb 3, 2012
    Likes Received:
    0
    the amount of metal in the neck may create too much of a ghost image or shadow for it to be much good. but try it anyway!
    i have so much metal in my hip+back it makes xrays of the area almost useless.
  3. Smilodon

    Smilodon Supporting Member

    Joined:
    Feb 18, 2012
    Likes Received:
    0
    Should be interesting. It may not show you much, but it's always fun/interesting to use expensive machinery for things it isn't intended for. :D

    Post the images when you get them so we all can see. :)
  4. Dean N

    Dean N

    Joined:
    Jul 4, 2006
    Likes Received:
    0
    Quick update - I shot two test films to see how they came out, but wasn't able to do larger ones to cover the whole neck. I'll definitely be doing that on Monday, and I ought to be able to post pics shortly afterwards.
  5. eukatheude

    eukatheude

    Joined:
    Apr 2, 2012
    Likes Received:
    0
  6. Technotitclan

    Technotitclan Lurking TB from work Supporting Member

    Joined:
    Mar 1, 2012
    Likes Received:
    0
  7. pilotjones

    pilotjones Supporting Member

    Joined:
    Nov 8, 2001
    Likes Received:
    0
    Cool. I'd like to see it.

    I've got an x-ray of a Lakland neck, from the web.
  8. Dean N

    Dean N

    Joined:
    Jul 4, 2006
    Likes Received:
    0
    I finally shot the films.

    xray2.JPG

    xray1.JPG

    There's always distortion on x-rays, and though it's subtle, it makes it pretty much impossible to simply cut and paste images together to get an accurate full-size. Doesn't matter though, since that won't be necessary to get the measurements I want.

    These are really bad cell phone pics. I'm going to use a good camera (tomorrow, hopefully) to get crisper pics. By measuring actual neck thickness at each fret, and measuring the thickness of wood behind the metal at each fret on the films and using good ol' algebra, I should manage to figure out how much to remove safely.
  9. Smilodon

    Smilodon Supporting Member

    Joined:
    Feb 18, 2012
    Likes Received:
    0
    That's pretty cool. :)

    Thanks for sharing.
  10. daveman50

    daveman50 Supporting Member

    Joined:
    Feb 24, 2007
    Likes Received:
    0
    A whole lotta metal there.
  11. T_Bone_TL

    T_Bone_TL

    Joined:
    Jan 10, 2013
    Likes Received:
    0
    I'm guessing carbon fiber stiffeners look like metal on the x-ray.
  12. Tristan

    Tristan

    Joined:
    Jan 28, 2001
    Likes Received:
    0
    It looks like you could remove a ton of wood and still be OK.
  13. Will Kelly

    Will Kelly Supporting Member

    Joined:
    Mar 3, 2010
    Likes Received:
    0
  14. NKBassman

    NKBassman Supporting Member

    Joined:
    Jun 16, 2009
    Likes Received:
    0
    +1
  15. Hopkins

    Hopkins Supporting Member

    Joined:
    Nov 17, 2010
    Likes Received:
    0
    I don't know how they would look on x-ray, but Warmoth uses 1/8 x 1/4 steel stiffening rods.
  16. Toptube

    Toptube

    Joined:
    Feb 9, 2009
    Likes Received:
    0
    They have carbon fiber as an upcharge option.
  17. Hopkins

    Hopkins Supporting Member

    Joined:
    Nov 17, 2010
    Likes Received:
    0
    Right, but, looking at those x-rays, I'm pretty sure those are the steel ones.
  18. BossOnBass

    BossOnBass

    Joined:
    Aug 11, 2012
    Likes Received:
    0
    This is so cool! Thanks for posting.
  19. uOpt

    uOpt Supporting Member

    Joined:
    Jul 21, 2008
    Likes Received:
    0
    Most likely Warmoth's truss rod sits at the same depth (from the fretboard) regardless of what the back-of-neck profile or thickness is.

    At least for those necks with no skunk stripe.
  20. Dean N

    Dean N

    Joined:
    Jul 4, 2006
    Likes Received:
    0
    Those are definitely steel rods. Thanks for posting the dimensions, Hopkins, I didn't have those specs. They might help to determine how much I can shave off the neck.

    Carbon fiber has a much lower density than steel, so it would appear much darker on x-ray than the steel rods.

Share This Page