What to use to clamp a neck straight?

Discussion in 'Hardware, Setup & Repair [BG]' started by wild4oldcars, Jun 17, 2020.

  1. wild4oldcars

    wild4oldcars

    Jan 22, 2012
    Garner, NC
    Hi,

    I have a bolt on neck that needs to be clamped to be held straight and heat treated. I’ve looked into square piping, but it seems fairly expensive, around 30+20 shipping for a 2ft section of 3 inch surface, and ideally I’d probably prefer something a bit longer. I’ve used my bench in the past, but would prefer something more portable to not be in my way for however long. If anyone has any suggestions, I’m all ears. Thanks!
     
  2. funkinbottom

    funkinbottom Gold Supporting Member

    Apr 23, 2006
    Northern CA.
    Maybe this method would work. Check it out at 1:35.



    Edit: I have also just clamped to work bench.
     
  3. wild4oldcars

    wild4oldcars

    Jan 22, 2012
    Garner, NC
    Thanks for the video, but my neck is has been ignored for a long time, unlike that P. This neck has at least an eighth of an inch, maybe 3/16” of relief with no engagement on the truss rod. A luthier I know has said it would be worth my time to heat treat it, meaning clamp it into a slight backbow and leave it in my trunk in the humid North Carolina summer.
     
  4. bassdude51

    bassdude51 "You never even called me by my name." Supporting Member

    Nov 1, 2008
    Central Ohio
    I'm probably out in "left field" with this remark but.............sand bags. My wife made me about 8 sand bags about 30 years ago. One of the best ways to put down pressure on stuff.

    Good luck!

    I think that there is a place out in Texas that specializes in bowed necks. Check out the fees. A Google search will locate.
     
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  5. Lownote38

    Lownote38

    Aug 8, 2013
    Nashville, TN
    I have used a long 2x4 with two smaller pieces of wood and a few dry sponges. Put one of the smaller pieces of 2x4 on each end of the longer 2x4. On top of each of those pieces, put a sponge, or cushion. Lay the neck frets down on the sponges/wood, and clamp it in the middle until it is in a back bow. Even though everything is only held together with the clamp, it's easy to pick up and will easily fit in a trunk.
     
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  6. Lownote38

    Lownote38

    Aug 8, 2013
    Nashville, TN
    That would be warpedneck.com. I've used them twice, and they are excellent and not pricey. The most expensive part of what they do is the shipping.
     
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  7. RSBBass

    RSBBass

    Jun 11, 2011
    NYC
    If you have too much relief with the truss rod loose, how much do you have when You tighten it?
     
  8. wild4oldcars

    wild4oldcars

    Jan 22, 2012
    Garner, NC
    It will get straight(ish)with no string tension but the minute you use strings, it’s unplayable.
     
  9. Reedt2000

    Reedt2000 Supporting Member

    Apr 26, 2017
    Central New Jersey
    Ive seen this video referenced here a couple times in threads about this:



    Ive never done it, but you only need a clamp and small blocks of wood. If you're gonna leave it in the trunk just clamp it to a 2×4 instead of a workbench.
     
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  10. wild4oldcars

    wild4oldcars

    Jan 22, 2012
    Garner, NC
    I’m a big fan of Dave! In my head I assumed I need a sturdy piece of metal, but I don’t see any reason a 2x4 wouldn’t work, now that people have recommended it.
     
  11. Reedt2000

    Reedt2000 Supporting Member

    Apr 26, 2017
    Central New Jersey
    I think a 2-by would work. If you're concerned the board would flex screw 2 together and clamp on the edge side.
     
  12. A 4ft level, if you have one would work. Metal would be preferable but I have a plastic one that might be sturdy enough. With lumber prices these days, a level might be cheaper then a 2 x 4! :laugh:
     
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  13. sissy kathy

    sissy kathy Back to Bass-ics Gold Supporting Member

    Apr 21, 2014
    Arbutus, MD
    I'd have reservations about using a 2 X 4. Pine is softer than maple and easier to bow. If you are giving pine serious consideration, I'd jump up to a 4 X 4, or at least a 2 X 4 doubled up and glued and screwed together.
     
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  14. Lownote38

    Lownote38

    Aug 8, 2013
    Nashville, TN
    One 2x4 won't flex. The neck flexes into a back bow long before the board does when you clamp it.
     
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  15. Lownote38

    Lownote38

    Aug 8, 2013
    Nashville, TN
    I've used just one 2x4, and the neck always flexes long before the 2x4 does.
     
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