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Truss rod insertion question
- Thread starter AndyMania
- Start date
dblbass
Commercial User
- Mar 24, 2007
- 368
- 74
- Disclosures
- Owner of MBJ guitars, Maker of fine sawdust for Carl Thompson Guitars
I put a single action rod in my necks straight 3/16 from the back. Once the rod is glued in I then taper the whole neck 9/16 by the nut to 11/16 at the heel. It works way better than any other single action rod I've seen
mikeyswood
Inactive
Hi.
I know, on my first neck some 25 years ago I did that exact mistake.
Most "entry level" instruments of the 70's and 80's had a wooden or plastic block-spacer (for the lack of a better term) between the TR and FB side of the groove on the middle of the TR to make the TR curve.
Now as there wasn't an abundance of luthiery literature available back then, at least here, I had no idea. I just knew that there has to be a truss rod (which was sort of incorrect assumption as well
). So I took a FB off from a shattered neck, and didn't notice the block as it fell to the floor. Not that I'd understood what it was either.
So I copied that design, which resulted a un adjustable neck and a cracked FB.
Then I noticed a "modern" Martin style TR on a guitar magazine and headed off to a scrap-yard where I'd seen some 10mm aluminium U-extrusion.
Up until I stopped making instruments in early 90's I used that design even though I did understand how the "old-school" trussrod worked (and why my first attempt failed miserably). The "Martin" TR just made much, much more sense.
Thank's mikeyswood and VinKreepo for trying to explain it, perhaps people understand eventually.
And since geometry is (for me anyway) the purest form of math, it sure is something that people should consentarate on more.
Regards
Sam
I know, on my first neck some 25 years ago I did that exact mistake.
Most "entry level" instruments of the 70's and 80's had a wooden or plastic block-spacer (for the lack of a better term) between the TR and FB side of the groove on the middle of the TR to make the TR curve.
Now as there wasn't an abundance of luthiery literature available back then, at least here, I had no idea. I just knew that there has to be a truss rod (which was sort of incorrect assumption as well
). So I took a FB off from a shattered neck, and didn't notice the block as it fell to the floor. Not that I'd understood what it was either.So I copied that design, which resulted a un adjustable neck and a cracked FB.
Then I noticed a "modern" Martin style TR on a guitar magazine and headed off to a scrap-yard where I'd seen some 10mm aluminium U-extrusion.
Up until I stopped making instruments in early 90's I used that design even though I did understand how the "old-school" trussrod worked (and why my first attempt failed miserably). The "Martin" TR just made much, much more sense.
Thank's mikeyswood and VinKreepo for trying to explain it, perhaps people understand eventually.
And since geometry is (for me anyway) the purest form of math, it sure is something that people should consentarate on more.
Regards
Sam
Hi.
I know, on my first neck some 25 years ago I did that exact mistake.
Most "entry level" instruments of the 70's and 80's had a wooden or plastic block-spacer (for the lack of a better term) between the TR and FB side of the groove on the middle of the TR to make the TR curve.
Now as there wasn't an abundance of luthiery literature available back then, at least here, I had no idea. I just knew that there has to be a truss rod (which was sort of incorrect assumption as well
So I copied that design, which resulted a un adjustable neck and a cracked FB.
Then I noticed a "modern" Martin style TR on a guitar magazine and headed off to a scrap-yard where I'd seen some 10mm aluminium U-extrusion.
Up until I stopped making instruments in early 90's I used that design even though I did understand how the "old-school" trussrod worked (and why my first attempt failed miserably). The "Martin" TR just made much, much more sense.
Thank's mikeyswood and VinKreepo for trying to explain it, perhaps people understand eventually.
And since geometry is (for me anyway) the purest form of math, it sure is something that people should consentarate on more.
Regards
Sam
I've been there as well with my first build (Shhh....SG Copy) in the mid 70's. Made the truss rod oh so carefully out of finest stainless steel (worked in a metal stockholders then) and it didn't work for toffee
After reading both VinKreepo's and Mikeyswood's posts it definitely makes more sense. Good info on both sides, it didn't really solidify until i read the other posts. Probably because math makes my brain temporarily shut down. =( Although, I think I may actually understand the mechanics behind trussrods now... albeit loosely =p
mikeyswood
Inactive
The key there is calculus.
Once you learn that the Invalid Link Removed you will never be bored by math again!
Rickett Customs
Commercial User
like this?
No, you circled the x, but they asked you to circle the x.... two totally different x's.... duh.
mikeyswood
Inactive
(BA)x = (TNR)x => BA = TNR
BA = MrT => MrT = TNR => M = N
Check my math but I think that you are correct sir.
x ≠ x
I would've loved it if the plan had come together.
mikeyswood
Inactive
Was it the BA = MrT? I was pretty proud of that. You know, not many in the new generation would know that obscure fact.
I was a Mechanical Engineering major before switch to Chemistry. Along the way my calculus professor almost made me a math major...
.
.
.
.
.
...I guess it didn't add up. Oh!
I was a Mechanical Engineering major before switch to Chemistry. Along the way my calculus professor almost made me a math major...
.
.
.
.
.
...I guess it didn't add up. Oh!
Lol, no, it was more that you took acronyms and shoved them into algebra haha.
I'm a math major, but I'm sticking round a lil longer and getting a music major as well since I'm an 18 year old junior (yes, it sucks). So, then I'm thinking master's in music composition or starting some music related business.... not sure yet. What did you end up doing with your major?
I'm a math major, but I'm sticking round a lil longer and getting a music major as well since I'm an 18 year old junior (yes, it sucks). So, then I'm thinking master's in music composition or starting some music related business.... not sure yet. What did you end up doing with your major?
mikeyswood
Inactive
Kept going with it. I got my own lab and now working with a several brilliant chemists. A lab with a view even!
Are you sure that I cannot interest you in a doctorate of Synthetic Organic? Ask around. You'll hear that it's a breeze. It's like molecular Lego's!
Are you sure that I cannot interest you in a doctorate of Synthetic Organic? Ask around. You'll hear that it's a breeze.
It's like molecular Lego's!
