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  #61  
Old 10-12-2018, 06:57 AM
GrimesGrimes GrimesGrimes is offline
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Untitled by David Emm

Untitled by David Emm

Untitled by David Emm

Untitled by David Emm

Untitled by David Emm

Untitled by David Emm

Hey guys, sorry to jump back in the thread like this, but I've got a question with the head block.
The plans that im using at the moment don't have any sort of fretboard extension piece on the headblock.

Are the necessary? I don't see them on every build thread. I'm guessing their purpose is to keep the fretboard from warping or cracking the soundboard beween the neck and soundhole?

I ask because i've already glued in my headblock without the extension?
If necessary what are my options at this point? Cut an inch or so out of my current headblock and add in an extension? Can I add it onto my soundblock as is?

Other than that this build is great. Can't wait to see the finished guitar.
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  #62  
Old 10-12-2018, 09:05 AM
BradHall BradHall is offline
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Looks like you already have a significant block on the top. If you were to extend it wouldn't it interfere with your top horizontal braces?
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  #63  
Old 10-12-2018, 09:25 AM
charles Tauber charles Tauber is offline
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Quote:
Originally Posted by BradHall View Post
Looks like you already have a significant block on the top. If you were to extend it wouldn't it interfere with your top horizontal braces?
The images are David's: the question is GrimesGrimes'.


The extension isn't mandatory, depending upon the overall scheme of one's construction. Many guitars have successfully been made without it. There does need to be some support, however, to resist the forces of the neck in that area. There are numerous ways to provide that support.

As part of the approach that I use, I adjust the truss rod from the sound hole through a hole in the upper transverse brace. Amongst other things, the extension provides support for the truss rod, which extends to the upper transverse brace just above the sound hole. That eliminates "fishing" for the truss rod nut that's "somewhere" at the end block.
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  #64  
Old 10-12-2018, 03:59 PM
emmsone emmsone is offline
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Quote:
Originally Posted by GrimesGrimes View Post
Hey guys, sorry to jump back in the thread like this, but I've got a question with the head block.
The plans that im using at the moment don't have any sort of fretboard extension piece on the headblock.

Are the necessary? I don't see them on every build thread. I'm guessing their purpose is to keep the fretboard from warping or cracking the soundboard beween the neck and soundhole?

I ask because i've already glued in my headblock without the extension?
If necessary what are my options at this point? Cut an inch or so out of my current headblock and add in an extension? Can I add it onto my soundblock as is?

Other than that this build is great. Can't wait to see the finished guitar.
Hi GrimesGrimes
Well let me give you my opinions on the neck block and explain why I installed it as I did. I'm clearly not the authority here but i'm starting to understand some of the concepts involved.
I think you actually don't 'need' that extension, many guitars do not have that and it doesn't cause them problems. As Charles also mentioned in his reply, there usually does need to be some kind of reinforcement in that area, either using an additional brace, or a patch, or something to that effect. The extended neck block pretty much incorporates this job into its own. The extended neck block would be heavier than an additional brace or soundboard patch etc.

There are 3 reasons why I used an extended neck block on this build
1) The bolt-on/bolt-off neck joint I used requires it. The neck extension that runs under the fretboard requires this extended horizontal block for it to sit in and to be bolted through.
2) it does exactly what I just suggested above, it incorporates that reinforcement into the one thing. I like to try and simplify things (if i can!!! I often go the other way in the process of trying to simplify!)
3) I have a feeling (it may be complete nonsense) that the fact that the neckblock extends along and under the soundboard further and is glued to the soundboard will slightly reduce the amount of torque produced by the strings on the neck/body joint pivot-point and that reduced torque 'may' help keep the neck angle set as I originally intended it for longer.
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  #65  
Old 10-13-2018, 03:50 AM
GrimesGrimes GrimesGrimes is offline
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Awesome. Thanks guys. I'll have to take another look at my plans when I get home maybe there's an extra brace their to account for the extra forces. If not ill figure a way to get that extra bit od added stiffness in there. Appreciate it.
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  #66  
Old 10-14-2018, 12:29 PM
LouieAtienza LouieAtienza is offline
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David, great work so far!
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  #67  
Old 10-15-2018, 02:51 AM
emmsone emmsone is offline
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Quote:
Originally Posted by LouieAtienza View Post
David, great work so far!
Thanks Louie!



Just so you all know, the reason why there hasn't been much activity on this thread recently is that the guitar has been sitting with my finisher in the UK for the last few weeks. Hopefully the lacquering will start this week. I'll post some images of the finishing process when it all starts.
The guitar will be assembled and strung up when I'm back there over the Christmas period.

I'll also be starting another nylon crossover build shortly, so keep an eye out for the build thread for that!
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  #68  
Old 10-15-2018, 11:27 AM
Talldad Talldad is offline
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Tell me thats a community workshop in the background and not your very own man-pad. I am burning up with jealousy.

Look stunning that leopardwood redwood combo.
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  #69  
Old 10-15-2018, 03:22 PM
emmsone emmsone is offline
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Originally Posted by Talldad View Post
Tell me thats a community workshop in the background and not your very own man-pad. I am burning up with jealousy.

Look stunning that leopardwood redwood combo.
Thanks very much! its quite interesting in that the reaction to the leopardwood from people who have seen it in person is very much love it or hate it, so far there do seem to be more on the love side, but there definitely aren't many fence sitters.

You are indeed correct, this is a public access woodwork workshop here in Switzerland. I don't have my own workshop and even if i did, i don't think i'd actually want something this big for just myself! This is just the main room, theres a 'big tool' room in the back with 2 large table saws, a huge jointer, a thicknesser, the longest belt sander i've ever seen, another belt sander, a fairly large disc sander a lathe, a very large bandsaw and a few other bits of pieces that aren't in working order. Most people who come here are cabinet makers or people building furniture for their homes, hence the large tooling.
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