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Smoothing a fretless fingerboard

Discussion in 'Luthier's Corner' started by mgmadian, Sep 20, 2004.

  1. mgmadian


    Feb 4, 2002
    Austin, TX
    I've got a KSD fretless 5 with an ebonol/phenowood/phenolic fingerboard, with inlaid fretlines. Sounds great in general. I notice a slight buzz when fingering a note on top of some fretlines, esp under the G-string (I'm using roundwounds, FYI). This is more noticeable when sliding over the offending fretlines.

    I'm guessing that some of the inlaid fretlines either lie slightly below, or (more likely) protrude slightly above the surface of the board itself. Seems like it would be pretty straightforward to resolve with sandpaper, etc, but...any advise for how to smooth out these irregularities, or is this something that a luthier is better off tackling? And if so, any idea on how much this should run?
  2. tjclem

    tjclem Supporting Member Commercial User

    Jun 6, 2004
    Central Florida
    Owner and builder Clementbass
    I am sure there are others that can answer this better thanI but I will give it a shot. You might want to consult a pro before you go it alone though. If you want to do it your self you need to find out what your fingerboard radius is. Then get the proper radius block from a place like Stewart Mac Donald


    Then get very fine sandpaper possibly 220,320,400,600,800 and 1000 grit ans smooth it out. As I said somebody else will hopefully clarify it for you. Good luck ........t