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Shimming a neck...


bassjamm
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[quote name='bassjamm' post='701744' date='Jan 5 2010, 03:41 PM']Hello everyone,

I was just wondering why it is that some people tend to shim the neck pockets of their basses...what's the advantage of this? And How would I need to adjust the truss rod and action to compensate for any shimming?

Thanks
Jamie[/quote]

The main reason is to achieve a low action where the bridge saddles cannot go any lower. The classic example is the replacement of the standard Fender bridge with the Badass II - the thicker base plate means that the saddles can't go as low as the old bridge. A tiny change in neck angle means that the saddles have to be set higher to achieve the same action as was before the shimming.

You shouldn't need to change truss rod unless you change the strings - same strings, same tension, all you've done is make a tiny change to the angle the neck meets the body.

See the guide in the stickies of this forum : [url="http://basschat.co.uk/index.php?showtopic=49897"]http://basschat.co.uk/index.php?showtopic=49897[/url]

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[quote name='neepheid' post='701755' date='Jan 5 2010, 03:49 PM']The main reason is to achieve a low action where the bridge saddles cannot go any lower. The classic example is the replacement of the standard Fender bridge with the Badass II - the thicker base plate means that the saddles can't go as low as the old bridge. A tiny change in neck angle means that the saddles have to be set higher to achieve the same action as was before the shimming.

You shouldn't need to change truss rod unless you change the strings - same strings, same tension, all you've done is make a tiny change to the angle the neck meets the body.

See the guide in the stickies of this forum : [url="http://basschat.co.uk/index.php?showtopic=49897"]http://basschat.co.uk/index.php?showtopic=49897[/url][/quote]

Thank you very much kind sir...most helpful indeed!

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