How to install wraparound bridge anchors?

Discussion in 'Tele Home Depot' started by sleazy pot pie, Jul 22, 2021.

  1. sleazy pot pie

    sleazy pot pie Tele-Afflicted Gold Supporter

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    I have never installed a wraparound bridge.
    What is the best way to install the anchors?
    What pitfalls should I watch out for?

    should the anchor reach the bottom of the post hole
    Or sit flush?

    I know I need to run a ground wire from the treble post.
    D99C292E-C35F-49B6-8D5B-6555602A446E.jpeg
    the body is ash.
     
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  2. Peegoo

    Peegoo Poster Extraordinaire

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    I always drill the holes for the threaded insert about 2mm deeper than the insert. You want an "interference fit," meaning you need moderate pressure to push them into the wood. If you have to beat them in with a mallet, the hole is too small. I use a drill press to push them in.

    I also put a drop of Titebond on a Qtip and run that around in the hole to help the insert go in and keep it locked in place.
     
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  3. Ronkirn

    Ronkirn Doctor of Teleocity Vendor Member

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    Just Like Peegoo ... but I run a ground wire from the post hole to the control cavity so I don't have to pull it back out to do so..

    r
     
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  4. Peegoo

    Peegoo Poster Extraordinaire

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    I've done THAT before o_O

    Sort of like forgetting to slip the heat shrink onto the wire before you solder the plug on the end. DOH!
     
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  5. Ronkirn

    Ronkirn Doctor of Teleocity Vendor Member

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    Oh. I Never do that... :rolleyes::p it's strange how the chance of doing it is directly proportional to how many leads have to be unsoldered to get the shrink tubing on the darn thing...

    r
     
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  6. guitarbuilder

    guitarbuilder Telefied Ad Free Member

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    I locate the holes and drill them. I put my ground wire down in there. I have used a spring style at the bottom and also have run a wire through and bent it down prior to installation.

    I tap the bushing in with a piece of wood to cushion it from the hammer. Make sure you have the hole the correct size, which is the minor diameter. The splines do the holding.


    I drill about a 1/8" hole from bushing hole to the control cavity with a long aircraft bit. That keeps the chuck away from the body.


    Amazon.com: DEWALT DW1602-1/8-Inch by 12-Inch Extra Long Black Oxide Drill Bit: Home Improvement
     
  7. Freeman Keller

    Freeman Keller Poster Extraordinaire

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    I can't add much to the above except that there seems to be some difference in the diameters of inserts and their splines. As I recall most require an 11mm hole but I ran into one that was different. Measure and be sure to use the correct bit.

    I just drill the ground hole into the stud hole and fan out a piece of stranded wire. When you press the inserts in it will contact the ground.

    I drill the holes on a drill press before doing any finishing. Pay attention to how your particular bridge intonates - you may have to angle the bridge. Some wrap arounds don't have adjustable saddles - just do the best you can. Mask the holes while you finish, do all the sanding and buffing before you press the inserts in.

    Edit, I just looked again at your picture. Holes are drilled so don't worry about the location.
     
  8. Danb541

    Danb541 Friend of Leo's

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    I install them the same as the previous posts. I will add that I put them in the freezer for a little while before tapping them in.
     
  9. sleazy pot pie

    sleazy pot pie Tele-Afflicted Gold Supporter

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    Cool, thanks for the replies.I just wasn’t sure how much resistance there should be when installing the post anchors.
    I have two different size anchors, one is way too big, these are just a touch larger.
    I may need to make the holes a hair larger, just wasn’t sure how tight it should be.
    There is already a hole from the post hole to the control cavity for the ground.

    will report back after I finish
     
  10. Danb541

    Danb541 Friend of Leo's

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    This is why I put them in the freezer, shrinks the steel slightly. Once out of the freezer, I rub candle was on them to lubricate, then (one at a time) I get it started with a hammer, then use a 2X4 scrap of hardwood, put it on the top of the anchor and tap it in. Don't forget to put your ground wire in the post hole.
     
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  11. rdjones

    rdjones Tele-Meister

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    Slide hammer
     
  12. sleazy pot pie

    sleazy pot pie Tele-Afflicted Gold Supporter

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    What's this?
     
  13. sleazy pot pie

    sleazy pot pie Tele-Afflicted Gold Supporter

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    I thought of another question as I was sanding today.
    How deep do the brass inserts go?
    Do the sit flush or proud?
    If proud, how much?
    C467DFEA-5EA7-479D-A02E-58202EDB2B67.jpeg
     
  14. pi

    pi Tele-Meister

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    So a ground wire is just held between the post and the wood?
     
  15. sleazy pot pie

    sleazy pot pie Tele-Afflicted Gold Supporter

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    That’s what it seems like.
    Same idea as the ground under a tele bridge
     
  16. guitarbuilder

    guitarbuilder Telefied Ad Free Member

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    They go flush so the bridge can sit on the body or raise up. They can even be recessed a bit. The geometry of the neck angle to the bridge is important for a low action. The higher the bridge is raised, the string tension could cause the wood in front of the inserts to compress and the bridge can tilt some altering your intonation. This was a problem on some old Gibsons, necessitating some repair work. Some vendors sell longer inserts to help with this issue. I think Gibson made them shorter as time went on.

    See this body
    Gibson 1973 Chery Burst Les Paul Deluxe Body & Neck | eBay
     
    Last edited: Jul 25, 2021
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  17. guitarbuilder

    guitarbuilder Telefied Ad Free Member

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    The ground wire is squished between the threaded insert and the wood surrounding it or touching the bottom of it to make contact.
     
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