The Custom Shape One

Discussion in 'Luthier's Corner' started by JMT Guitars, Aug 4, 2017.

  1. Skyjerk

    Skyjerk Meatbomb Silver Supporter

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    Not if thats your expectation at the outset.

    My opinion?

    You need to approach every build with the attitude that its gonna be everything you want it to be and more.

    When you expect to do poorly you aren't going to try nearly as hard, and your results will suffer. Thats just human nature...
     
  2. JMT Guitars

    JMT Guitars Senior Member

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    Obviously I'm going to try as hard as I can! If it's worth doing it is most definitely worth doing well. I am just making the point that experience counts for a lot, and I am most definitely in experienced!

    I guess it would have been better put "If mine turns out half as well as yours I'll be incredibly happy!"
     
  3. JMT Guitars

    JMT Guitars Senior Member

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    Hey so long time no post, got the body cut today, FINALLY. Should be progressing quickly now I am back with a fully equipped workshop (not mine, my colleges). Pics to follow.
     
  4. JMT Guitars

    JMT Guitars Senior Member

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    Finally, pics!
    Templates made: 20170912_155247.jpg
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    Body cut and sanded:
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    Bevels drawn on: 20170919_124032.jpg 20170919_124043.jpg 20170919_124057.jpg 20170919_124117.jpg
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    The neck is in the process of being marked up, I have enough for two should I fail greatly! 20170914_103626.jpg 20170919_124138.jpg 20170919_124151.jpg
    I had a look to see what the grain was doing to see whether or not to reinforce it and it turns out I got lucky and pulled out a piece tt is pretty well quarter sawn! 20170919_124215.jpg 20170919_124228.jpg
    It is difficult to show in photos but I asked three experts (two tutors and my dad who is an ex tutor) and they all agreed it was pretty well quarter sawn. Yay my ability to read grain is accurate!

    More to come later
    Cheers folks
     
  5. JMT Guitars

    JMT Guitars Senior Member

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    Few pix, got the neck cut.
    20170929_130404.jpg
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  6. pshupe

    pshupe Senior Member

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    That's quite the volute you have there. No neck break issues in it's future? ;-)

    What truss rod are you using? Double action rods are advisable. It looks like the route is a consistent depth. Usually there is a slightly deeper area at the nut and access area because the adjustment piece drops lower than the bottom of the rod. I use the Stew Mac low profile with hex head. IMO they are the best for the shallowest routes. Looking good.

    Cheers Peter.
     
  7. JMT Guitars

    JMT Guitars Senior Member

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    No headstock breaks for this one, no! To be honest I have never done a volute before, so I was unsure as to how much material to leave. I will keep shaping until its comfortable, but as said before, I have left PLENTY of cock up room!

    I'm using a double action one (the nice blue ones- it's pretty low profile but tbh I have a problem with buying stuff from screw-mac on principle, unless I can't get it ANYWHERE else I won't go near 'em) and yes it is a consistent depth , but it is slightly deeper than the 9mm needed and so does not sit flush. I also widened the area around the nut so it all fits in nicely, I'll get some photos later but does it need to be going through the neck at an incline?
    Cheers.
     
  8. pshupe

    pshupe Senior Member

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    Generally the volute can be quite small. It's really just to thicken the area that is the thinnest, and where the deepest truss rod access accurs. As long as it's as thick as just before the volute, taking the truss rod access route into consideration, that's all that is necessary. IMO it's overkill to go much thicker because it'll just snap just before the neck volute anyway.

    If you can I would consider routing out a little more to allow the rod to sit flush with the top. If it will fit on an angle then you may want to put a shim in the bottom of the truss rod cavity as it may be a little too deep. The depth of the route should be the same depth as the rod, then a little deeper to allow the adjustment nut not to hit the bottom, but only in that area.

    Capture.JPG

    Cheers Peter.
     
  9. JMT Guitars

    JMT Guitars Senior Member

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    Hey, when I said it wasn't flush I meant that the truss rod route was too deep, about 11mm. pictures will illustrate better than I can explain XD
     
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  10. pshupe

    pshupe Senior Member

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    I buy ones that are 7/16" which is just over 11mm. 11mm is is quite shallow, so that's good. Shouldn't have any problem with the neck carve. If your truss rod is shallower you could just put some silicone in the route, which would stop it from rattling around if there is no pressure on the rod.

    Cheers Peter.
     
  11. JMT Guitars

    JMT Guitars Senior Member

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    The ones I get are 9mm deep, but the channel is VERY tight, it won't rattle at all, and yeah the neck carve should be fine, it shouldn't really go near the cavity- I hope... pictures in a bit.
    Cheers
     
  12. JMT Guitars

    JMT Guitars Senior Member

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    Pics of the truss rod in situ: 20171005_102354.jpg 20171005_102400.jpg 20171005_102437.jpg 20171005_102508.jpg

    As you can see the adjustment nut is pretty flat on the bottom, do I still need to route it on an incline? It sits slightky sunken in the channel but rattle it does not. That thing is actually a BITCH to get out again!
     
  13. mux164

    mux164 Senior Member

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    Been there done that more times than I'd like to admit
     
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