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Todd Rose
PostPosted: Mon Jan 25, 2016 6:48 am 
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J De Rocher wrote:
That's a very cool and beautiful guitar. The build thread over on the AGF is one of the best I've seen for its extensive details and great photos. The guitar has many interesting design/engineering features and the methods you used give me a lot to think about.

The neck joint reminds me of the adjustable cantilevered neck on a 1951 National archtop I used to have. It also used a three-screw tripod adjustment mechanism and a single bolt to hold the neck on. The biggest difference was that it had no heel at all. Just a cover plate over the adjustment mechanism. It looked like this:


Thanks! I'm glad this has given you stuff to think about.

Thanks for sharing that pic of the National. Yep, pretty much the same thing. I didn't know National had done this in 1951. Cool. I like the lack of heel and the cover plate idea. Very practical. I wonder how that metal piece (it is metal, right? Looks like steel in the pic) is joined to the neck shaft; that's where there could be problems if it wasn't well engineered.

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J De Rocher
PostPosted: Mon Jan 25, 2016 1:25 pm 
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Todd Rose wrote:
J De Rocher wrote:
That's a very cool and beautiful guitar. The build thread over on the AGF is one of the best I've seen for its extensive details and great photos. The guitar has many interesting design/engineering features and the methods you used give me a lot to think about.

The neck joint reminds me of the adjustable cantilevered neck on a 1951 National archtop I used to have. It also used a three-screw tripod adjustment mechanism and a single bolt to hold the neck on. The biggest difference was that it had no heel at all. Just a cover plate over the adjustment mechanism. It looked like this:


Thanks! I'm glad this has given you stuff to think about.

Thanks for sharing that pic of the National. Yep, pretty much the same thing. I didn't know National had done this in 1951. Cool. I like the lack of heel and the cover plate idea. Very practical. I wonder how that metal piece (it is metal, right? Looks like steel in the pic) is joined to the neck shaft; that's where there could be problems if it wasn't well engineered.


You are correct that the block with the adjustment screws is metal. I'm pretty sure it's steel. I had that guitar (and another National with the same mechanism) years before I started building guitars so, unfortunately, I didn't look at how that block was attached to the neck from a builder's perspective. I can say it was rock solid though and that the mechanism worked nicely.

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Todd Rose
PostPosted: Mon Jan 25, 2016 3:03 pm 
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Cool. Thanks.

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Joe Beaver
PostPosted: Mon Jan 25, 2016 8:22 pm 
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That's a beauty Todd. Love the smiling bridge!!!

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Bobc
PostPosted: Tue Jan 26, 2016 11:21 am 
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Beautiful piece of engineering and workmanship.

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JeffD
PostPosted: Tue Jan 26, 2016 8:57 pm 
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Wow, just went through 14 pages over at AGF and that is an impressive build! As a beginner just starting his first instrument I'll be re-reading that post a couple times. I hope you don't mind if I ask a couple questions though? One, since you filled the CF tube with a wood dowel anyway, do you think the hardwood dowel on it's own would be adequate for that type of strut? And second, if I'm understanding the construction of the neck to body joint correctly, the only thing mechanically attaching the neck is the single bolt on the bottom? While that does seem as though it will make a strong joint, I can't help but wonder if it could be susceptible to rotational movement from an errant bump?

Figure I'll ask now so someday down the road when my skills have improved I'll be better equipped to 'borrow' some of your ideas:)

thanks
Jeff
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Todd Rose
PostPosted: Wed Jan 27, 2016 3:30 am 
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JeffD wrote:
Wow, just went through 14 pages over at AGF and that is an impressive build! As a beginner just starting his first instrument I'll be re-reading that post a couple times. I hope you don't mind if I ask a couple questions though? One, since you filled the CF tube with a wood dowel anyway, do you think the hardwood dowel on it's own would be adequate for that type of strut? And second, if I'm understanding the construction of the neck to body joint correctly, the only thing mechanically attaching the neck is the single bolt on the bottom? While that does seem as though it will make a strong joint, I can't help but wonder if it could be susceptible to rotational movement from an errant bump?

Figure I'll ask now so someday down the road when my skills have improved I'll be better equipped to 'borrow' some of your ideas:)

thanks
Jeff


Thanks, Jeff. 1st question: No, I don't think a hardwood dowel alone would be rigid or stable enough. The geometry of the guitar depends on that strut staying dead straight, and it's carrying a heavy load. 2nd question: Not at all likely. With the force of the bolt and string tension, those three set screws are bearing very hard against the brass plugs in the heel. It would take a very strong impact to knock the heel out of place. An impact like that would be likely to damage any guitar.

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JeffD
PostPosted: Wed Jan 27, 2016 9:02 pm 
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Sounds good, and thanks for the response!

Jeff
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alan stassforth
PostPosted: Wed Jan 27, 2016 10:12 pm 
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Hey, Todd,
I am posting again here,
because I am so impressed with that guitar.
Perfect choice of wood combinations,
lovely soundhole placement, concentric with the upper bout,
top with stunning silking,
amazing neck attachment,
beautiful rosette and binding scheme,
smiling bridge (one eyed face),
and it sounds great!
I agree with you about the gold hdwr.
You are a true artist!
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Todd Rose
PostPosted: Thu Jan 28, 2016 11:38 am 
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alan stassforth wrote:
Hey, Todd,
I am posting again here,
because I am so impressed with that guitar.
Perfect choice of wood combinations,
lovely soundhole placement, concentric with the upper bout,
top with stunning silking,
amazing neck attachment,
beautiful rosette and binding scheme,
smiling bridge (one eyed face),
and it sounds great!
I agree with you about the gold hdwr.
You are a true artist!


Thanks, Alan! Much appreciated. If the work has inspired others, then it was worthwhile.

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Rocky Road
PostPosted: Fri Jan 29, 2016 11:16 am 
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Rocky Road
PostPosted: Fri Jan 29, 2016 11:30 am 
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Todd-
This shows us all what the true meaning of an artisan is: the melding of functionality with the keen eye of an artist. Congratulations on showing us a great accomplishment. BTW I can't wait to see how you top this.

Dave Riedmiller


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TonyKarol
PostPosted: Fri Jan 29, 2016 1:04 pm 
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Hi Todd .. checked out the thread on the AGF .. very interesting way of building, and lots of thought put into the design and engineering - Kudos !!! I like the way you think ... Carry on !!

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