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Drilling new floyd saddle screw hole?

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  • Drilling new floyd saddle screw hole?

    I have a couple JT500 trems on my JDR 94s, The low E string still intonates a little sharp pushed all the way back of the travel, Could a threaded hole be added by a metal shop? Has anyone done this and is familiar with the correct terminology that a metal shop would understand? Thanks!

  • #2
    The term would be “drill and tap” for the machinist. If you move the saddle back further, would it be contacting the sloping piece of the backplate and not be able to move? See the section in this link about intonation, has a pick of what I’m talking about. You’d have to make sure that the saddle can still have some adjustment by the fine tuner and that there still is a spot to drill and tap a new hole/threads
    http://audiozone.dk/index-filer/TremoloInfoProject.htm


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    • #3
      If you haven't done so already, I would try adjusting the action and neck relief in order to fix the intonation before I make a permanent change to the bridge (lowering the action and/or decreasing relief will flatten the intonation). also what gauge of string and tuning are you using?
      Last edited by metalhobo; 12-01-2020, 04:43 PM.

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      • #4
        Originally posted by MountainDog View Post
        The term would be “drill and tap” for the machinist. If you move the saddle back further, would it be contacting the sloping piece of the backplate and not be able to move? See the section in this link about intonation, has a pick of what I’m talking about. You’d have to make sure that the saddle can still have some adjustment by the fine tuner and that there still is a spot to drill and tap a new hole/threads
        http://audiozone.dk/index-filer/TremoloInfoProject.htm

        Thanks!, yup, I already filed some of the saddle that you mentioned but it reached the end of the screw, so I'll look into that.

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        • #5
          Originally posted by metalhobo View Post
          If you haven't done so already, I would try adjusting the action and neck relief in order to fix the intonation before I make a permanent change to the bridge (lowering the action and/or decreasing relief will flatten the intonation). also what gauge of string and tuning are you using?
          Standard tuning and 0.42 on the low E, weird because I guess this usually happened with heavier strings down tuned. The action is a little high on one of them because of a couple high frets, I do need to address, but the lower one is a little sharp as well. thanks!

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          • #6
            Also i would check the pickup height. If the strings are too close to the pickups the pickups can pull the string out of tune when intonating i had this happen once before.

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