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FDP Forum / Guitar Mods, Repairs, and Projects / Non-locking bridge back angle? Yay or Nay?

Modal Magic

MBJ, Highway Hound.

You Can't Bend It Aussie!
Apr 7th, 2018 07:40 AM   Edit   Profile   Print Topic   Search Topic

I have an Ibanez AZ series guitar factory fitted with a Strat-like two post Gotoh T1502 floating bridge.

The bridge is distinctly higher at the pup side compared to the rear. The posts have been raised a significant amount. The action is very low but perfectly buzz free providing effortless playing. Intonation is spot on as well.

I'm not real keen on adjusting the posts down to level the bridge (or even raising the back up a bit if required) because the action is perfect. If I have to though, I will.

Will the angle of the bridge, which is counter to what feels right from a bunch of Strat experience, cause premature wear or performance issues?

Is it prudent to re-adjust?

wrnchbndr

New Jersey

I'm back with the otters again
Apr 7th, 2018 07:53 AM   Edit   Profile   Print Topic   Search Topic

You don't adjust the posts to address the angle. You adjust the trem springs to level the bridge angle and then adjust the saddles for string height. The posts are for very rough adjustment when the range of the saddle height screws is insufficient.

Peegoo
Contributing Member
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Get ready for the

Buena Buena
Apr 7th, 2018 10:15 AM   Edit   Profile   Print Topic   Search Topic

Yep.

The thing to do is remove the cover from the rear vibrato cavity and use a Phillips screwdriver to rotate each screw on the spring claw one turn anti-clockwise.

All strings will now be flat, so retune and check the bridge angle.

What you're doing by adjusting the spring tension is balancing the pull of the springs with the pill of the strings with the bridge plate at the angle you want.

Ideally, the bridge plate will be parallel with the surface of the body. There are exceptions, though, like Jeff Beck, who prefers having the rear of the bridge plate elevated quite a bit because his style includes flicking the bar and letting it go. He gets more of the effect when the plate is angled like that.

Look here.

Modal Magic

MBJ, Highway Hound.

You Can't Bend It Aussie!
Apr 7th, 2018 09:29 PM   Edit   Profile   Print Topic   Search Topic

I really should've simply asked "is it ok to have the front of the bridge higher than the rear?
Will the angle of the bridge cause premature wear or performance issues? ". I was after a warm fuzzy because of reluctance to adjust things because the action is so perfect.

"You don't adjust the posts to address the angle." Yep, I'm fully aware of that but it is useful to adjust the posts if they are retardedly high. Not often seen, had to do it once on an American series Strat (although in this case the bridge was level it just sat extremely high). They are retardedly high on my AZ.

I appreciate the feedback but I have adjusted many a Strat bridge and fully understand adjusting the springs to attain optimal balance and bridge angle, as well as adjustments to saddles and posts (if needed). All learnt from years of visiting the FDP BTW.

So, because of the set-up of the bridge is retarded and annoys me to look at, I'll start from scratch and re-do the it, including lowering the posts to a more acceptable level.


wrnchbndr

New Jersey

I'm back with the otters again
Apr 7th, 2018 10:43 PM   Edit   Profile   Print Topic   Search Topic

Everything tends to work better and last longer when the bridge is set up properly. I see now what you were getting at in your first post. My thought is that having the bridge at an angle might actually stress the knife edge of the bridge plate unnecessarily or cause a wear divot on the post at an angle that is not exactly at the intended contact point. I don't like really high posts either. The high post has more leverage on the threaded inserts in the body and sometimes this is a problem when the body wood is softer than optimal.

On the other-hand, Rule #1 is don't fix something that isn't broke. While the guitar is playing great, I'd leave it alone for now. Inevitably the humidity will change as the wood will move on its own and you'll need to set it up again.

Modal Magic

MBJ, Highway Hound.

You Can't Bend It Aussie!
Apr 9th, 2018 02:50 AM   Edit   Profile   Print Topic   Search Topic

Well, I re-adjusted. Moved the posts down, adjusted the springs levelled the bridge and it's much better. The action is the same (measured it for reference prior to starting) so it's a win-win.

I was initially reluctant to do it because the action was perfect. Was expecting more stuffing around than how it actually went. Feel so much better about playing the guitar now. And it's extremely stable when I give it a whammy bar flogging :-)

Peegoo
Contributing Member
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Get ready for the

Buena Buena
Apr 9th, 2018 12:25 PM   Edit   Profile   Print Topic   Search Topic

Very cool!

Apply a very small dot of light machine oil to the knife-edge pivot points where they meet the groove in each stud. Gun oil is perfect for this. Use a toothpick. You don't want oil running around where it can get onto the wood. Too little oil is better than too much.

It will make the vibrato's operation smoother, keep it quieter, and greatly increase the longevity of the unit.

(This message was last edited by Peegoo at 02:25 PM, Apr 9th, 2018)

FDP Forum / Guitar Mods, Repairs, and Projects / Non-locking bridge back angle? Yay or Nay?




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