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How to fix a cracked bridge?

Discussion in 'Hardware, Setup & Repair [BG]' started by johndough247, Jan 10, 2013.


  1. johndough247

    johndough247 Supporting Member

    One of my students owns an Ibanez SR505, a newer model with the quick release bridge. The anchor point for the A string on the bridge has a crack which has caused it to bend upwards...the string won't secure itself anymore. The attached pics don't show it, but I assume short of welding it, the only other option is replacing it (which we would rather avoid). Any suggestions?
     
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  3. johndough247

    johndough247 Supporting Member

  4. Pilgrim

    Pilgrim Supporting Member

    He might be able to put a ground-to-fit washer between the ball and the bridge, but if it's bending, it's going to break before long. A replacement bridge would probably cost less than labor to (possibly unsuccessfully) fix the existing one.
     
  5. georgestrings

    georgestrings Banned

    Nov 5, 2005
    I would contact Ibanez - they might replace it for free...



    - georgestrings
     
  6. Hi.

    I have done such repairs and therefore can give a huge +1 for:

    Except for my repairs has been succesful (but ugly ;)).
    But then again, I have several lathes and milling machines to aid in the fabrication.

    With all setting up, it'll take about an hour to measure and fabricate the part, so ~$100 or so.

    A simple stepped spacing ferrule can be ground freehand with an angle grinder as well, but the fingers are at a grave risk.

    Welding is virtually impossible because of the Zinc alloy used. Brazing is possible in theory, but will lead to more troubles with the finish melting/scaling away, and quite likely the whole bridge bending badly.

    Regards
    Sam
     
  7. RhynoRock

    RhynoRock

    Dec 19, 2012
    Fredonia, NY
    Busted steel would require welding to truly fix it. But T-Bird is definitely correct with welding zinc. Replace it with the original or buy a badass and bolt that sucker on there.
     
  8. Bruce Johnson

    Bruce Johnson Supporting Member

    Feb 4, 2011
    Fillmore, CA
    Disclosures:
    Professional Luthier
    I concur that you aren't going to fix that, and the best approach is to try to get a new bridge from Ibanez.

    However, one repair that I can suggest is to make up an aluminum plate that fits across the back of the bridge, all the way across, with holes for all the strings. That would give good support for all of them, without any modifications to the bridge or instrument. Rounded off and polished up, it would probably look okay.
     
  9. Pilgrim

    Pilgrim Supporting Member

    I bow to you! That's nice creative thinking. :cool:
     
  10. Exploiter8

    Exploiter8 Demons run when a good man goes to war Supporting Member

    Jan 18, 2010
    Midwest
    Disclosures:
    Commercial FREE!
    Find an Allen wrench that will fit through the ball ends of the strings. Starting at one end, loosen one at a time to get the ball exposed. Pass the wrench through the ball and take up a bit of slack. Proceed until all balls have been anchored. You may want to trim to length or eliminate the bend of the wrench beforehand but that's entirely up to you. I did this on a cheap headless I got from eBay a few years ago.

    Best of luck to you,
    X8
     
  11. johndough247

    johndough247 Supporting Member

    Thanks for all the responses as usual. I'm guessing it was possibly weakened by my student leaving the bass in extreme heat a few times (followed by taking it to an A/C room). We're gonna go the easy route and get the factory replacement. (and it was a SR305 not 505, same bridge though)
     



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