LP Top Carve, How far back does the Flat part go?

Discussion in 'Luthier's Corner' started by DGNRepair, Sep 18, 2009.

  1. DGNRepair

    DGNRepair MLP Vendor

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    I am sure this has been discussed to death and then some, but how far back does the flat bit under the pickups go? Is the top flat under the bridge, or as far as the tailpiece?

    I worked on a 57 many years ago, and didn't pay that much attention to it details of the build and whatnot nor did I have time. It was only a quick repair. Now I wish I had. I didn't realize until joining this forum that my idea of the original top carve was waaaaay off.
     
  2. Texas07R8

    Texas07R8 Senior Member

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    if you poke around here, you can find some builds done by some mightly fine luthiers and many show the contour lines, the inner most lightbulb shaped line is the flat area, each line outside that indicates a 1/16" drop going farther out to the edges.
     
  3. DGNRepair

    DGNRepair MLP Vendor

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    Thanks, thats really all I needed to know. I have seen a bunch of pics with the carve lines and just wasn't sure what to do with the top, or center most line.

    So let me run it down real quick. When I am surfacing the top I should have 5/8 of wood. Then when I route the 4 degree angle for the neck the line will land where it needs too?
     
  4. GooCart

    GooCart V.I.P. Member

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    Hi DGNRepair,
    Don't forget about the pickup plane.
    I don't know if you're familiar with the Easter Maple Carved Tops, on those the neck plane is 4.4 deg and the pickup plane is 1.21 deg. The neck/pickup plane intersection is straight between the very end of the neck and the neck pickup ring. The pickup plane is a straight line all the way to the tailpiece and from there the curvature down to the recurve starts.

    Sort of...
     
  5. Fletch

    Fletch V.I.P. Member

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    Everything GooCart says is it... Only difference with me is I make the two planes intersect more to the back of the neck pickup, or almost to the end of the fretboard. It lowers the pickup plane maybe .020" or so, negligable at best.

    fletch
     
  6. GooCart

    GooCart V.I.P. Member

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    When I modeled our top I had the opportunity to look at some original 'bursts and also a couple of '53-57. They all differ, to say the least, some had the intersection where I chose to put it, some have it like Fletch. It doesn't really matter, as long as you have enough spacing for the ABR. Not to much, not so little.
     
  7. DGNRepair

    DGNRepair MLP Vendor

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    Now thats what I needed!!! I had read about the pickup plane but had no idea what degree it was, or if it was flat.

    So the neck plane should end at or about the end of the finger board? Now I am starting to really visualize the top.
     
  8. DGNRepair

    DGNRepair MLP Vendor

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    One last thing with the pickup plane. The end of the plane, where the tailpiece is, will be my 5/8" top thickness and the end of the fingerboard will be slightly less, right?
     
  9. nuance97

    nuance97 Premium Member

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    You got it.:thumb:
     
  10. Ole'Lefty

    Ole'Lefty Premium Member

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    At the body end of the neck, the height of an LP fretboard is supposed to be .210. That would be the max at the high point of the radius arch(commonly but not always) 12" radius. O'L(I'm just babbling because I intend to rely upon my Melkersson/Bartlett Master Pattern. While not exclusive on all vintage LP's, it is a very good vintage carve-enough people took a serious interest in helping Magnus get an archetypal shape. Thanks, Mr. M. & Mr. B.--Hey, I wonder what tone would be with a Corian top?:naughty::fingersx:)
     
  11. GooCart

    GooCart V.I.P. Member

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    Corian tops rocks!!!!!
     
  12. Ole'Lefty

    Ole'Lefty Premium Member

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    "Like a Rock!" Seger, B.
     
  13. DGNRepair

    DGNRepair MLP Vendor

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    The fingerboard dimension is another I haven't thought of. I figured it was a little less than a 1/4 inch because the sides are narrow, but it is nice to have an approximate dimension. Just one more piece of the puzzle.

    Dan
     

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