Truss Rod Question

[nollock]

Acording to these two sites the traditional truss rod works in differant ways, one by trying to straighten out in a curved channel, another by compressing the back of the neck. So my question is are they talking about the same rod installed the same way, or is it the same rod installed differant ways?

http://www.frets.com/FRETSPages/Luthier/Da...trussrods1.html

http://www.warmoth.com/guitar/necks/necks....tion=truss_rods

thanks,

chris

[SwedishLuthier]

No, either way. A compression rod is straight and a "traditional" (fender style) truss rod is curved. The compression rod helps counter the string pull by simply adding a counter force in the neck. The traditional is a cuved rod. It is closer to the fret board at its ends, and furter away in the middle. When a curved rod is tightened it will try to straighten itself, thus bending the neck backwards, away from the strings.

Modern, two-way adjustable rods is another thing. Tey are usualy put in a straight chanel beneth the fret board. The mechanism (it is actualy a mecanism, quite advanced too) bend itself in either of two ways, depending on what way the nut is turned.

Peter

[nollock]

No, either way. A compression rod is straight and a "traditional" (fender style) truss rod is curved. The compression rod helps counter the string pull by simply adding a counter force in the neck. The traditional is a cuved rod. It is closer to the fret board at its ends, and furter away in the middle. When a curved rod is tightened it will try to straighten itself, thus bending the neck backwards, away from the strings.

That clears it up for me, cheers

Would i be right in thinking the compression rod was invented before the fender style one?

chris

[SwedishLuthier]

Yup

[Mattia]

Addendum: 'traditional' rods would be Gibson-style rods. Ted McHugh came up with the things, and Gibson implemented them first, I believe. Curved rod-style doodads.

[Setch]

Correct. The 'traditional' Gibson style rods were the first, are commonly known as compression rods, and function in exactly the same manner as those in Fender necks.

Both explainations are correct, and are simply different ways of looking at the effect of tightening the rod.